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CALIFORNIA MICRO DEVICES
CMV1016
MICROPOWER RRO Operational Amplifier with Shutdown
Features
* Tiny SOT23-6 Package * Guaranteed specs at 1.8V, 2.2V, 2.7V, 3V and 5V * Less than 1A idle current. * Very Low operating Supply current typically 50A@3V * Rail-to-Rail Output * Simple shutdown mode(with logic level control) * Typical Total Harmonic Distortion of 0.02% at 3V * 1.0MHz Typical Gain Bandwidth Product * 0.5V/s Typical Slew Rate
Applications
* Mobile Communications * Cellular Phones * Portable Equipment * Notebooks and PDAs * Electronic Toys
Product Description
The CMV1016 is a high performance CMOS operational amplifier available in a small SOT23-6 package. Operating with very low supply current, it is ideal for battery operated applications where power, space and weight are critical. Performance is similar to CAMD's CMV1010 SOT Amp, with the addition of a shutdown pin to greatly reduce supply current when idle. The shutdown mode is controlled by an extra pin, and is compatible with most logic family signal levels. Ideal for use in personal electronics such as cellular handsets, pagers, cordless telephones and other products with limited space and battery power.
PIN DIAGRAM
6-Pin SOT23-6 6 V+ 5 SHUTDOWN 4 OUTPUT
1 NON-INV INPUT 2 V3 INV INPUT
+
S TA N D A R D PA R T O R D E R I N G I N F O R M AT I O N
Package Pins 6 Style SOT23-6 Tape & Reel CMV1016Y/R Ordering Part Number Part Marking 1016
(c) 2000 California Micro Devices Corp. All rights reserved. 5/00
C0950500
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
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CALIFORNIA MICRO DEVICES
CMV1016
A B S O L U T E M A X I M U M R AT I N G S ( N O T E 1 )
Parameter ESD Protection (HBM, Note 2) Differential Input Voltage Voltage at input/output Pin Temperature: Storage Operating Junction (Note 4) Lead (Soldering, 10s) Supply Voltage (V+ to V-) Current at Input Pin Current at Output Pin (Note 3) Current at Power Supply Pins Rating 2000 +/- Supply Voltage (V+) +0.3, (V-) -0.3 -65 to 150 125 260 7.5 5 15 15 Unit V V V C V mA mA mA
O P E R AT I N G C O N D I T I O N S ( u n l e s s s p e c i f i e d o t h e r w i s e )
Parameter Supply Voltage Junction Temperature Thermal Resistance Rating 1.8 to 7 -40 to 85 325 Unit V C C / W
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating conditions indicate ratings for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Operating Characteristics. Note 2: Human Body Model, 1.5K in series with 100pF. Note 3 : Applies to both single-supply and split-supply operation. Continuous short ckt operation at elevated ambient temperatures can result in exceeding the maximum allowed junction temperature of 150C. Note 4 : The maximum power dissipation is a function of TJ (MAX), JA and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ (MAX) - TA)/JA . All numbers apply for packages soldered directly to a PC board.
(c)2000 California Micro Devices Corp. All rights reserved.
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CALIFORNIA MICRO DEVICES
1 . 8 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 C , V + = 1 . 8 V, V- = 0 V, R L > 1 M )
Symbol VO S IB IO S RIN IS IS GBW AV SR PSRR Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Supply Current Supply Current Gain Bandwidth Product Large Signal Voltage Gain Slew Rate Power Supply Rejection Ratio Conditions VO U T = 0.9V Typ 1 0.5 1 40 0.01 0.8 80 0.4 70 60 0 1.1 0.026 5 20 150 1.2 0.6 1 Limit 9
CMV1016
Unit mV pA pA T A A MHz dB V/s dB dB V % mA mV V V A s s
Amplifier ON VS D = 1.8V Amplifier OFF VS D = 0V VO U T = 0.2V to 1.6V AV = -1, RL = 100K V+ = 0.9V t0 1.2V V- = -0.9V to -1.2V VCM = 0V 0V < VCM < 0.8V
80 1 60 0.1 50 40
CMRR VC M THD IS C VO VS D IH VS D IL IIN TO N TO F F
Common Mode Rejection Ratio Common Mode Input Range Total Harmonic Distortion Output Short Circuit Current Output Swing from either rail Amplifier ON Logic level Amplifier OFF Logic level Logic Pin Current Turn On Time Turn Off Time
AV = -1, f = 1KHz, VO U T = 1Vp-p RL = 100K Source/Sink RL = 10K Amplifier ON Amplifier OFF VS D = V+ or GND
32 1
2 . 2 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 C , V + = 2 . 2 V, V- = 0 V, R L > 1 M )
Symbol VO S IB IO S RIN IS IS GBW AV SR PSRR Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Supply Current Supply Current Gain Bandwidth Product Large Signal Voltage Gain Slew Rate Power Supply Rejection Ratio Conditions VO U T = 1.1V Typ 1 0.5 1 40 0.01 0.87 80 0.45 70 60 0 1.5 0.02 7 20 150 1.6 0.6 1 Limit 9 Unit mV pA pA T A A MHz dB V/s dB dB V % mA mV V V A s s
Amplifier ON VS D = 2.2V Amplifier OFF VS D = 0V VO U T = 0.2V to 2V AV = -1, RL = 100K V+ = 1.1V t0 1.4V V- = -1.1V to -1.4V VCM = 0V 0V < VCM < 1.2V
80 1 60 0.1 50 40
CMRR VC M THD IS C VO VS D IH VS D IL IIN TO N TO F F
5/00
Common Mode Rejection Ratio Common Mode Input Range Total Harmonic Distortion Output Short Circuit Current Output Swing from either rail Amplifier ON Logic level Amplifier OFF Logic level Logic Pin Current Turn On Time Turn Off Time
AV = -1, f = 1KHz, VO U T = 1.4Vp-p RL = 100K Source/Sink RL = 10K Amplifier ON Amplifier OFF VS D = V+ or GND
23 1
(c) 2000 California Micro Devices Corp. All rights reserved.
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
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CALIFORNIA MICRO DEVICES
CMV1016
2 . 7 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 C , V + = 2 . 7 V, V- = 0 V, R L > 1 M )
Symbol VO S IB IO S RIN IS IS GBW AV SR PSRR Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Supply Current Supply Current Gain Bandwidth Product Large Signal Voltage Gain Slew Rate Power Supply Rejection Ratio VO U T = 0.2V to 2.5V AV = -1, RL = 100K V+ = 1.35V to 1.65V V- = -1.35V to 1.65V VCM = 0V 0V < VCM < 1.7V Amplifier ON VS D = 2.7V Amplifier OFF VS D = 2.7V Conditions VO U T = 1.35V Typ 1 0.5 1 45 0.01 0.95 85 0.5 70 60 0 2 AV = -1, f = 1KHz, VO U T = 1.9Vp-p RL = 100K Source/Sink RL = 10K Amplifier ON Amplifier OFF VS D = V+ or GND 19 1 0.02 12 20 150 2 0.8 1 65 0.2 50 45 85 1 Limit 6 Unit mV pA pA T A A MHz dB V/s dB dB V % mA mV V V A s s
CMRR VC M THD IS C VO VS D IH VS D IL IIN TO N TO N
Common Mode Rejection Ratio Common Mode Input Range Total Harmonic Distortion Output Short Circuit Current Output Swing from either rail Amplifier ON Logic Level Amplifier OFF Logic Level Logic Pin Current Turn On Time Tun Off Time
(c)2000 California Micro Devices Corp. All rights reserved.
4
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
5/00
CALIFORNIA MICRO DEVICES
CMV1016
3 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 C , V + = 3 V, V- = 0 V, R L > 1 M )
Symbol VO S IB IO S RIN IS IS GBW AV SR PSRR Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Supply Current Supply Current Gain Bandwidth Product Large Signal Voltage Gain Slew Rate Power Supply Rejection Ratio VO U T = 0.2V to 2.8V AV = -1, RL = 100K V+ = 1.5V to 1.8V V- = -1.5V to -1.8V VCM = 0V 0V < VCM < 2V Amplifier ON VS O + 3V Amplifier OFF VS O + 0V Conditions VO U T = 1.5V Typ 1 0.5 1 50 0.01 1 85 0.5 80 70 0 2.3 AV = -1, f = 1KHz, VO U T = 2Vp-p RL = 100K Source/Sink RL = 10K Amplifier ON Amplifier OFF VSD + V+ or GND 17 1 0.02 15 20 150 2.2 1 1 65 0.2 55 50 90 1 Limit 5 Unit mV pA pA T A A MHz dB V/s dB dB V % mA mV V V A s s
CMRR VC M THD IS C VO VS D IH VS D IL IIN TO N TO F F
Common Mode Rejection Ratio Common Mode Input Range Total Harmonic Distortion Output Short Circuit Current Output Swing from either rail Amplifier ON Logic Level Amplifier OFF Logic Level Logic Pin Current Turn On Time Turn Off Time
(c) 2000 California Micro Devices Corp. All rights reserved. 5/00
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
5
CALIFORNIA MICRO DEVICES
CMV1016
5 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 C , V + = 5 V, V- = 0 V, R L > 1 M )
Symbol VO S IB IO S RIN IS IS GBW AV SR PSRR Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Supply Current Supply Current Gain Bandwidth Product Large Signal Voltage Gain Slew Rate Power Supply Rejection Ratio VO U T = 0.2V to 2.8V AV = -1, RL = 100K V+ = 1.5V to 1.8V V- = -1.5V to -1.8V VCM = 0V 0V < VCM < 2V Amplifier ON VS D + 3V Amplifier OFF VS D + 0V Conditions VO U T = 1.5V Typ 1 0.5 1 60 0.01 1 90 0.5 80 70 0 2.3 AV = -1, f = 1KHz, VO U T = 2Vp-p RL = 100K Source/Sink RL = 10K Amplifier ON Amplifier OFF VSD + V+ or GND 10 1 0.02 15 20 150 4 1 1 70 0.2 55 50 100 1 Limit 5 Unit mV pA pA T A A MHz dB V/s dB dB V % mA mV V V A s s
CMRR VC M THD IS C VO VS D IH VS D IL IIN TO N TO F F
Common Mode Rejection Ratio Common Mode Input Range Total Harmonic Distortion Output Short Circuit Current Output Swing from either rail Amplifier ON Logic Level Amplifier OFF Logic Level Logic Pin Current Turn On Time Turn Off Time
(c)2000 California Micro Devices Corp. All rights reserved.
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215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
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CALIFORNIA MICRO DEVICES
CMV1016
Open Loop Phase Response
RL = 1MEG
Open Loop Voltage Gain Response
RL = 1MEG RL = 100K
RL = 10K
V+ = 5V V- = 0V TA = 25C
RL = 100K
V+ = 5V V- = 0V TA = 25C
AVOL (dB)
Frequency(Hz)
Phase ()
RL = 10K
Frequency(Hz)
Large Signal Pulse Response
Supply Current Versus Supply Voltage
V+ = 5V V- = 0V RL = 100K TA = 25C
Supply Current (A)
TA = 85C TA = 25C TA = -40C
VOUT (V)
Time(s)
Supply Voltage(V)
Inverting Small Signal Response
Non Inverting Small Signal Response
RL = 10K
RL = 10K RL = 100K
RL = 100K
V+ = 5V V- = 0V TA = 25C
V+ = 5V V- = 0V TA = 25C
VOUT (V)
VOUT (V)
Time(s)
Time(s)
(c) 2000 California Micro Devices Corp. All rights reserved. 5/00
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
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CALIFORNIA MICRO DEVICES
CMV1016
Current Sourcing Versus VOUT
Common Mode Rejection Ratio
VS = 2.5V -2.5V < V in < 2V T A = 25C
V+ = 5V V- = 0V TA = 25C
IOUT VOUT is referenced to V+
(m V)
O
VS
VOUT(V)
V in(V)
Current Sourcing Versus V OUT
Disabled Supply Current Versus Supply Voltage
VSD = 0V V- = 0V
Supply Current (nA)
V+ = 5V V- = 0V TA = 25C
OU T
TA = 85C
I
VOUT is referenced to V+
TA = 25C TA = -40C
Supply Voltage(V)
VOUT(V)
(c)2000 California Micro Devices Corp. All rights reserved.
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CALIFORNIA MICRO DEVICES
CMV1016
5V Enable Response for a family of DC Inputs
5V Disable Response for a family of DC Inputs
V+ = 5V V- = 0V RL = 10K TA = 25C AV = +1
VIN = 5V VOUT (V)
VOUT (V)
VIN = 3.5V
VIN = 3V
V+ = 5V V- = 0V RL = 10K TA = 25C AV = +1
VIN = 4V
VIN = 2V
VIN = 3V
VIN = 1V
VIN = 2V
VIN = 1V
Time(s)
Time(s)
Turn ON Time Versus Supply Voltage
180
160
Turn ON Time + OPAMP Settling Time (s)
140
120
100
VIN = 0.5*V+ V- = 0V RL = 10K TA = 25C AV = +1
80
60
40
20
0 1.8 2.2 2.7 3.3 4 5
Supply Voltage(V)
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CALIFORNIA MICRO DEVICES
Applications Information 1. Input Common Mode Range and Output Voltage Considerations
The CMV1016 is capable of accommodating an input common mode voltage equal to one volt below the positive rail and all the way to the negative rail. It is also capable of output voltages equal to both power supply rails. Voltages that exceed the supply voltages will not cause phase inversion of the output, however, ESD diode clamps are provided at the inputs that can be damaged if static currents in excess of 5mA are allowed to flow in them. This can occur when the magnitude of input voltage exceeds the rail by more than 0.3 volt. To preclude damage, an applications resistor, RS, in series with the input is recommended as illustrated in Figure 1 whose value for RS is given by: VIN - (V+ + 0.3V) RS > ------------------ 5mA For V+ (or V-) equal to 2.2 volts and VIN equal to 10 volts, Rs should be chosen for a value of 2.5 K or greater. The Shutdown pin also provides ESD clamp diodes that will be damaged if the signal exceeds the rail by 0.3 volts and should also be limited to <5mA by inserting the appropriate resistor between the input signal or logic gate and the Shutdown input.
CMV1016
temperature rise are small, a short analysis is worth investigating. Obviously, the worst case from a power dissipation point of view is when the output is shorted to either ground in a single rail application or to the opposite supply voltage in split rail applications. Since device only draws 60A supply current (100A maximum), its contribution to the junction temperature, TJ, is negligible. As an example, let us analyze a situation in which the CMV1016 is operated from a 5 volt supply and ground, the output is "programmed" to positive saturation, and the output pin is indefinitely shorted to ground. In general: PDISS = (V+ - VOUT)*IOUT + IS*V+ Where: PDISS = Power dissipated by the chip V+ = Supply voltage VOUT = The output voltage IS = Supply Current The contribution to power dissipation due to supply current is 500W and is indeed negligible as stated above. The primary contribution to power dissipation occurs in the output stage. V+ - VOUT would equal 5V - 0V = 5V while the short circuit current would be 25mA. The power dissipation would be equal to 125mW. TJ = TA + JA* PDISS Where: TA = The ambient temperature JA = The thermal impedance of the package junction to ambient The SOT23 exhibits a JA equal to 325C/W. Thus for our example the junction rise would be about 41C which is clearly not a destructive situation even under an ambient temperature of 85C.
3. Input Impedance Considerations
The CMV1016 exhibits an input impedance typically in excess of 1 Tera (1 X 1012 ohms) making it very appropriate for applications involving high source impedance such as photodiodes and high output impedance transducers or long time constant integrators. High source impedances usually dictate large feedback resistors. But, the output capacitance of the source in parallel with the input capacitance of the CMV1016 (which is typically 3pF) create a parasitic pole with the feedback resistor which erodes the phase margin of the amplifier. The usual fix is to bypass, RF, as shown in Figure 2 with a small capacitor to cancel the input pole. The usual formula for calculating CF always results in a value larger than that is required:
Figure 1.
2. Output Current and Power Dissipation Considerations
The CMV1016 is capable of sinking and sourcing output currents in excess of 7mA (V+ = 2.2 volts) at voltages very nearly equal to the rails. As such, it does not have any internal short circuit protection (which would in any event detract from its rail to rail capability). Although the power dissipation and junction
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CALIFORNIA MICRO DEVICES
1 1 -------------- ------------ 2 R F CF 2 R S CS Since the parasitic capacitance can change between the breadboard and the production printed circuit board, we favor the use of a "gimmick", a technique perfected by TV technicians in the 1950's. A gimmick is made by taking two lengths (typically about a foot) of small gauge wire such as AWG 24, twisting them together, and then after baring all ends soldering the gimmick across RF. With the circuit operating, CF is "adjusted" by clipping short lengths of the gimmick off until the compensation is nominal. Then simply remove the gimmick, take it to an impedance bridge, and select the capacitor accordingly.
CMV1016
5. Power Supply Decoupling
The CMV1016 is not prone to oscillation without the use of power supply decoupling capacitors, however to minimize hum and noise pick-up, it is recommended that the rails be bypassed with 0.01F capacitors.
6. Turn On and Turn Off (Shut Down) Characteristics
The turn off delay (Disable Response), tOFF, is defined as the time between the shut down signal crossing the disable threshold (typically V+ - 1 volt) and the time for the amplifier's output to come within 10% of zero. It is largely governed by a propagation delay within the CMV1016 of few hundred nanoseconds followed by an exponential decay determined by the load resistance in parallel with the load capacitance. The turn on delay (Enable Response), tON, is defined as the time between the shutdown signal crossing the threshold and the time the output reaches to within 10% of its final value. tON is largely independent of supply voltage and input level.
7. Typical Applications
Illustrated in Figure 4 is a Sample and Hold Amplifier capable of operating from a single rail, but it will work equally well with split rails The circuit will accommodate input voltages (common mode) from zero volts to V+ - 1 volt. The Shut Down feature of the CMV1016 is used to disable A1 whose output acts like a very high impedance in this mode. The high slew rate of the CMV1016 and large output current minimize Acquisition Time. A2 presents a very high input impedance and very low bias current. A Logic "1", a voltage > V+ - 1 volt will put the circuit into "Sample" mode. A Logic "0" will put the circuit in "Hold" mode. For the values shown, Acquisition Time to 0.1% is typically 10s for a zero to 4 volt input, the hold step is typically 400V, and the droop rate at 85C is 0.1V/s. Overall accuracy is better than 0.01%. For minimum droop, C1 should be of polystyrene construction.
Figure 2.
4. Capacitive Load Considerations
The CMV1016 is capable of driving capacitate loads in excess of 100pF without oscillation. However, significant peaking will result. Probably the easiest way minimize this problem is to use an isolation resistor as shown in Figure 3.
Figure 3 Figure 4
(c) 2000 California Micro Devices Corp. All rights reserved. 5/00
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
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CALIFORNIA MICRO DEVICES
The circuit illustrated in Figure 5 provides a simple analog switch capable of operating from supply voltages as low as 2.2 volts. The circuit takes advantage of the CMV1016's shutdown feature which places the output stage in a high impedance mode. The outputs are simply "wire OR'd", and as configured, a Logic "1" (Logic In voltage > V+ - 1 volt), VIN2 is selected.
CMV1016
Figure 5
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