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SGM8651/2/4 SGM8653/5
PRODUCT DESCRIPTION
The SGM8651/2/3/4/5 are high precision, low noise, low distortion, rail-to-rail output CMOS voltage feedback operational amplifiers offering ease of use and low cost. They have a wide input common-mode voltage range and output voltage swing, running at single-supply voltage from 2.5 V to 5.5 V. Despite being low cost, the SGM8651/2/3/4/5 provide excellent overall performance. They offer wide gain-bandwidth product to 50MHz and a typical low power of 2.3 mA/amplifier. The SGM8651/2/3/4/5`s low distortion and fast settling make them ideal for buffering high speed A/D or D/A converters. The SGM8653/5 has a power-down disable feature that reduces the supply current to 75A/amplifier. These features make the SGM8653/5 ideal for portable and battery-powered applications where size and power are critical. All are specified over the extended -40C to +125C temperature range.
50MHz, Rail-to-Rail Output CMOS Operational Amplifier
FEATURES
* Low Cost * Rail-to-Rail Output 2mV Typical VOS * Gain-Bandwidth Product: 50MHz * High Slew Rate: 66V/s * Settling Time to 0.1% with 2V Step: 60 ns * Overload Recovery Time: 25ns * Low Noise : 8.7 nV/ Hz * Operates on 2.5 V to 5.5V Supplies * Input Voltage Range = - 0.2 V to + 3.8 V with VS = 5V * Low Power 2.3 mA/Amplifier Typical Supply Current 75A/Amplifier when Disabled (SGM8653/5 only) * Small Packaging SGM8651 Available in SOT23-5 and SO-8 SGM8652 Available in MSOP-8 and SO-8 SGM8653 Available in SOT23-6 and SO-8 SGM8654 Available in TSSOP-16 and SO-16 SGM8655 Available in MSOP-10
PIN CONFIGURATIONS (Top View) APPLICATIONS
Data Acquisition Process Control Audio Processing Video Processing Active Filters Test Equipment Cell Phone PA Control Broadband Communications A-to-D Driver D -to- A Driver
SGM8651/8653
NC -IN +IN -VS 1 2 3 4 8 (SGM8653 ONLY) OUT 7 6 5
NC = NO CONNECT
SGM8651
DISABLE +VS OUT NC 1 2 4 -IN 5 +VS
-VS
+IN 3
SOT23-5
SO-8
SGM8653
8653
OUT 8 7 6 5 +VS OUT B +IN -IN B -VS 1 2 3 6 5 4 +VS DISABLE -IN
SGM8652
OUT A 1 -IN A +IN A 2 3
SOT23-6
-VS 4 +IN B OUT A -IN A 10 +VS 9 8 7 6 OUT B -IN B -INB -VS DISABLE 4 5 +IN B DISABLE OUT B NC 6 7 8
NC = NO CONNECT
SGM8654
1 2 3 4 5 16 OUT D 15 -IND 14 +IND 13 -VS 12 +INC 11 10 9 -INC OUT C NC
SO-8 / MSOP-8
SGM8655
OUT A -IN A +IN A 1 2 3
+IN A +VS +INB
MSOP-10
TSSOP-16 / SO-16
Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com
REV. C
ELECTRICAL CHARACTERISTICS :VS = +5V
(At TA = +25, RL = 600 connected to Vs/2, unless otherwise noted)
SGM8651/2/3/4/5 PARAMETER CONDITION TYP +25 DYNAMIC PERFORMANCE Gain-Bandwidth Product(GBP) Slew Rate Settling Time to 0.1% Overload Recovery Time NOISE/DISTORTION PERFORMANCE Total Harmonic Distortion + Noise Input Voltage Noise(en) Input Current Noise(In) DC PERFORMANCE Input Offset Voltage (VOS) Input Offset Voltage Drift Input Bias CurrentIB Input offset CurrentIOS Open-Loop Gain (AOL) INPUT CHARACTERISTICS Input Common-Mode Voltage Range (VCM) Common-Mode Rejection Ratio(CMRR) OUTPUT CHARACTERISTICS Output Voltage Swing from Rail Output Current Closed-Loop Output Impedance POWER-DOWN DISABLE (SGM8653/5 only) Turn-On Time Turn-Off Time
DISABLE Voltage-Off
MIN/MAX OVER TEMPERATURE +25 0 to70 -40to 85 -40to 125 UNITS MIN/ MAX
G = +10 G = +1, 2V Output Step G = +1, 2 V Output Step VING = +VS G = +1, f = 1kHz, VO = 2Vp-p, RL = 600 f = 100kHz f = 1MHz f = 10kHz
50 66 60 25
MHz V/s ns ns %
TYP TYP TYP TYP TYP
16 8.7
nV/
Hz
TYP TYP TYP MAX TYP TYP TYP MIN MIN
nV/ Hz f A/ Hz 8 8.9 9.5 9.8 mV V/ pA pA 75 92 74 91 74 91 73 80 dB dB
2 4.5 6 2 VO = 0.3 V to 4.7 V, RL = 150 VO = 0.2 V to 4.8 V, RL = 1K 80 104
-0.2 to +3.8 VCM = - 0.1 V to + 3.5 V RL = 150 RL = 1K f100kHz, G = +1 80 0.12 0.03 127 0.08 100 96 89 82 66 65 65 62
V dB V V mA
TYP MIN TYP TYP MIN TYP
220 150 0.8 2 2.5 5.5 2.3 75 Vs = + 2.7V to + 5.5V, VCM = (-VS) + 0.5 80 2.9 120 67 2.7 5.5 3.4 127 67 2.7 5.5 3.8 130 65 2.7 5.5 4 137 62
ns ns V V V V mA A dB
TYP TYP MAX MIN MIN MAX MAX MAX MIN
DISABLE Voltage-On
POWER SUPPLY Operating Voltage Range Quiescent Current (per amplifier) Supply Current when Disabled per amplifier (SGM8653/5 only) Power Supply Rejection Ratio (PSRR)
Specifications subject to change without notice.
SGM8651/2/3/4/5
PACKAGE/ORDERING INFORMATION
MODEL SGM8651 SGM8652 SGM8653 SGM8654 SGM8655 CHANNEL Single Dual Single with shutdown Quad Dual with shutdown ORDER NUMBER SGM8651XN5/TR SGM8651XS/TR SGM8652XMS/TR SGM8652XS/TR SGM8653XN6/TR SGM8653XS/TR SGM8654XS/TR SGM8654XTS SGM8655XMS/TR PACKAGE DESCRIPTION SOT23-5 SO-8 MSOP-8 SO-8 SOT23-6 SO-8 SO-16 TSSOP-16 MSOP-10 PACKAGE OPTION Tape and Reel, 3000 Tape and Reel, 2500 Tape and Reel, 3000 Tape and Reel, 2500 Tape and Reel, 3000 Tape and Reel, 2500 Tape and Reel, 2500 Tape and Reel, 3000 Tape and Reel, 3000 MARKING INFORMATION 8651 SGM8651XS SGM8652XMS SGM8652XS 8653 SGM8653XS SGM8654XS SGM8654XTS SGM8655XMS
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V- ......................................... 7.5 V Common-Mode Input Voltage ...................................... (-VS) - 0.5 V to (+VS) +0.5V Storage Temperature Range..................-65 to +150 Junction Temperature ..............................................160 Operating Temperature Range............ -55 to +150 Package Thermal Resistance @ TA = 25 SOT23-5, JA......................................................... 190/W SOT23-6, JA......................................................... 190/W SO-8, JA..................................................................125/W MSOP-8, JA.......................................................... 216/W MSOP-10, JA........................................................ 216/W SO-16, JA................................................................ 82/W TSSOP-16, JA....................................................... 105/W Lead Temperature Range (Soldering 10 sec) ..................................................... 260 ESD Susceptibility HBM...........................................................................1000V MM...............................................................................400V
NOTES 1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
CAUTION
This integrated circuit can be damaged by ESD. Shengbang Micro-electronics recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
SGM8651/2/3/4/5
TYPICAL PERFORMANCE CHARACTERISTICS
At TA= +25, VS = +5V, G = +2, RF = 887, RG = 887, CL = 47pF ,and RL= 600, unless otherwise noted.
Closed-Loop Gain vs.Frequency 60 40 G = +100 20 G = +10 0 G = +1 -20 -40 0.01 VS = 5V RL = 600 CL = 47pF
Capacitive Load vs.Frequency 6 3 Normalized Gain(dB) 0 -3 -6 -9 -12 -15
VIN
+ RG = 887 VR F = 887 CL V+
SGM8653
Closed-Loop Gain(dB)
Vo = 0.1VP-P G = +1
CL = 100pF CL = 47pF CL = 30pF CL = 20pF
Rs
Vo RL =600 (RL is Optional )
0.1
1 10 Frequency(MHz)
100
1000
0.1
1
10 100 Frequency(MHz)
1000
Output Impedance vs.Frequency 20 Small Signal Overshoot(%) 16 12 8 4 0 0.1 1 10 100 Frequency(KHz) 1000 10000 G = +100 G = +10 G = +1 30 25 20 15 10 5 0 0
Small Signal Overshoot vs.Load Capacitance Vo = 0.2VP-P G=+1 -overshoot
Output Impedance()
+overshoot
10
20
30 40 50 Capacitance(pF)
60
70
Large Signal Step Response Vs = 5V CL = 47pF VIN = 2V G = +1
Small Signal Step Response Vs = 5V CL = 47pF VIN = 200mV G = +1
Output Voltage(500mV/div)
Output Voltage(50mV/div)
Time(100s/div)
Time(400ns/div)
SGM8651/2/3/4/5
TYPICAL PERFORMANCE CHARACTERISTICS
At TA= +25, VS = +5V, G = +2, RF = 887, RG = 887, CL = 47pF ,and RL= 600, unless otherwise noted.
Input Voltage Noise Spectral Density vs.Frequency
CMRR And PSRR vs.Frequency 100 80 CMRR,PSRR(dB) 60 40 PSRR 20 0 0.01 CMRR
1000
Voltage Noise(nV/Hz)
100
10
0.1
1 Frequency(MHz)
10
100
1 0.01
0.1
1
10
100
1000
Frequency(kHz)
Overload Recovery Time Vs = 2.5V VIN = 1.77V G = +2
Large-Signal Disable/Enable Response Vs = 2.5V fIN = 5MHz G = +2
1.77V 0V
Output Voltage(1V/div)
2.5V
VOUT = 2.4V
Time(25ns/div)
Time(200ns/div)
Maximum Output Voltage vs.Frequency 6 5 Output Voltage(Vp-p) 4 3 2 1 0 0.1 1 10 Frequency(MHz) 100 Vs = 2.7V Vs = 5.5V
Maximum Output Voltage Without Slew-Rate Induced Distortion
CMRR And PSRR vs.Temperature 120 110 CMRR,PSRR(dB) 100 PSRR 90 80 70 60 -50 -30 -10 10 30 50 70 Temperature() 90 110 130 CMRR RL = 150
SGM8651/2/3/4/5
TYPICAL PERFORMANCE CHARACTERISTICS
At TA= +25, VS = +5V, G = +2, RF = 887, RG = 887, and RL = 150 connected to Vs/2,unless otherwise noted.
Open-Loop Gain vs.Temperature 120 RL = 1K
Shutdown Current(A) 80 75 70 65 60 55 50 45 40
Shutdown Current vs.Temperature
Open-Loop Gain(dB)
110 100 90 80 70 -50 -30 -10 10 30 50 70 Temperature() 90 110 130 RL = 150
VS = 5V
VS = 3V VS = 2.7V
-50 -30 -10
10 30 50 70 Temperature()
90
110 130
Supply Current vs.Temperature 3 2.8 Supply Current(mA) 2.6 2.4 2.2 2 1.8 1.6 1.4 1.2 1 -50 -30 -10 10 30 50 70 Temperature() 90 110 130 VS = 2.7V VS = 5V VS = 3V
Output Voltage Swing vs.Output Current 3 Sourcing Current 135 2 VS = 3V 1 135 25 -50
Output Voltage(V)
25
-50 Sinking Current
0 0 20 40 60 80 100 120 Output Current(mA)
Output Voltage Swing vs.Output Current 5 4 3 VS = 5V 2 1 0 0 25 50 75 100 125 150 Output Current(mA) 135 25 -50 Sinking Current 135
Channel Separation vs.Frequency -40 -50 Channel Separation(dB)
Output Voltage(V)
25
-50 Sourcing Current
-60 -70 -80 -90 -100 -110 -120 0.001 0.01 0.1 1 Frequency(MHz) 10 100
SGM8651/2/3/4/5
TYPICAL PERFORMANCE CHARACTERISTICS
At TA= +25, VS = +5V, G = +2, RF = 887, RG = 887, and RL = 150 connected to Vs/2,unless otherwise noted.
Offset Voltage Production Distribution
24 Percent of Amplifiers(%) 21 18 15 12 9 6 3 0
Typical production distribution of packaged units.
-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8
Offset Voltage(mV)
SGM8651/2/3/4/5
APPLICATION NOTES
Driving Capacitive Loads
The SGM865x can directly drive 47pF in unity-gain without oscillation. The unity-gain follower (buffer) is the most sensitive configuration to capacitive loading. Direct capacitive loading reduces the phase margin of amplifiers and this results in ringing or even oscillation. Applications that require greater capacitive drive capability should use an isolation resistor between the output and the capacitive load like the circuit in Figure 1. The isolation resistor RISO and the load capacitor CL form a zero to increase stability. The bigger the RISO resistor value, the more stable VOUT will be. Note that this method results in a loss of gain accuracy because RISO forms a voltage divider with the RLOAD.
Power-Supply Bypassing and Layout
The SGM865x family operates from either a single +2.7V to +5.5V supply or dual 1.35V to 2.75V supplies. For single-supply operation, bypass the power supply VDD with a 0.1F ceramic capacitor which should be placed close to the VDD pin. For dual-supply operation, both the VDD and the VSS supplies should be bypassed to ground with separate 0.1F ceramic capacitors. 2.2F tantalum capacitor can be added for better performance. Good PC board layout techniques optimize performance by decreasing the amount of stray capacitance at the op amp's inputs and output. To decrease stray capacitance, minimize trace lengths and widths by placing external components as close to the device as possible. Use surface-mount components whenever possible. For the high speed operational amplifier, soldering the part to the board directly is strongly recommended. Try to keep the high frequency big current loop area small to minimize the EMI (electromagnetic interfacing).
RISO
SGM8651
VOUT CL
VIN
VDD
Figure 1. Indirectly Driving Heavy Capacitive Load An improvement circuit is shown in Figure 2. It provides DC accuracy as well as AC stability. RF provides the DC accuracy by connecting the inverting signal with the output. CF and RIso serve to counteract the loss of phase margin by feeding the high frequency component of the output signal back to the amplifier's inverting input, thereby preserving phase margin in the overall feedback loop.
10F 0.1F
VDD
10F 0.1F Vn VOUT 10F
Vn
SGM8651
VOUT
SGM8651
Vp
Vp
CF RF RISO
SGM8651
VSS(GND)
0.1F
VOUT CL RL
VIN
VSS
Figure 3. Amplifier with Bypass Capacitors
Figure 2. Indirectly Driving Heavy Capacitive Load with DC Accuracy For no-buffer configuration, there are two others ways to increase the phase margin: (a) by increasing the amplifier's gain or (b) by placing a capacitor in parallel with the feedback resistor to counteract the parasitic capacitance associated with inverting node.
Grounding
A ground plane layer is important for high speed circuit design. The length of the current path speed currents in an inductive ground return will create an unwanted voltage noise. Broad ground plane areas will reduce the parasitic inductance.
Input-to-Output Coupling
To minimize capacitive coupling, the input and output signal traces should not be parallel. This helps reduce unwanted positive feedback.
SGM8651/2/3/4/5
Typical Application Circuits
Differential Amplifier
The circuit shown in Figure 4 performs the difference function. If the resistors ratios are equal ( R4 / R3 = R2 / R1 ), then VOUT = ( Vp - Vn ) x R2 / R1 + Vref.
C R2 R1 VIN
SGM8651
R2 Vn Vp R3 R4 Vref
Figure 4. Differential Amplifier
VOUT
R1
SGM8651
VOUT
R3 = R1 // R2
Figure 6. Low Pass Active Filter
Driving Video
The SGM865x can be used in video applications like in Figure 7.
Instrumentation Amplifier
The circuit in Figure 5 performs the same function as that in Figure 4 but with the high input impedance.
VIN
SGM8651
75
75 CABLE
R2 R1
SGM8651
RG
RF
75
VOUT
Vn
SGM8651
VOUT
G = 1 + RF / RG
Figure 7. Typical Video Driving
Vp
SGM8651
R3
R4
Vref
Figure 5. Instrumentation Amplifier
Low Pass Active Filter
The low pass filter shown in Figure 6 has a DC gain of (-R2/R1) and the -3dB corner frequency is 1/2R2C. Make sure the filter is within the bandwidth of the amplifier. The Large values of feedback resistors can couple with parasitic capacitance and cause undesired effects such as ringing or oscillation in high-speed amplifiers. Keep resistors value as low as possible and consistent with output loading consideration.
SGM8651/2/3/4/5
PACKAGE OUTLINE DIMENSIONS
SOT23-5
D b L
0
0.20
Symbol
A A1
Dimensions In Millimeters Min
1.050 0.000 1.050 0.300 0.100 2.820 1.500 2.650 1.800 0.300 0
Dimensions In Inches Min
0.041 0.000 0.041 0.012 0.004 0.111 0.059 0.104 0.071 0.012 0
Max
1.250 0.100 1.150 0.400 0.200 3.020 1.700 2.950 2.000 0.600 8
Max
0.049 0.004 0.045 0.016 0.008 0.119 0.067 0.116 0.079 0.024 8
E1
A2 b c
E
L
e e1 A1
D
C
E E1 e e1
0.950TYP 0.700REF
0.037TYP 0.028REF
A2
L L1
A
SGM8651/2/3/4/5
PACKAGE OUTLINE DIMENSIONS
SOT23-6
D e1 e L
0
0.20
Symbol
A A1 A2 b c D E E1
Dimensions In Millimeters Min
1.050 0.000 1.050 0.300 0.100 2.820 1.500 2.650 1.800 0.300 0
Dimensions In Inches Min
0.041 0.000 0.041 0.012 0.004 0.111 0.059 0.104 0.071 0.012 0
Max
1.250 0.100 1.150 0.400 0.200 3.020 1.700 2.950 2.000 0.600 8
Max
0.049 0.004 0.045 0.016 0.008 0.119 0.067 0.116 0.079 0.024 8
E1
E
b A1
L C
e e1 L
0.950TYP 0.700REF
0.037TYP 0.028REF
A2
A
L1
SGM8651/2/3/4/5
PACKAGE OUTLINE DIMENSIONS
SO-8
D C
Symbol
L
Dimensions In Millimeters Min Max
1.750 0.250 1.550 0.510 0.250 5.000 4.000 6.300 1.270 8 1.350 0.100 1.350 0.330 0.190 4.780 3.800 5.800 0.400 0
Dimensions In Inches Min
0.053 0.004 0.053 0.013 0.007 0.188 0.150 0.228 0.016 0
Max
0.069 0.010 0.061 0.020 0.010 0.197 0.157 0.248 0.050 8
A A1
E1 E
A2 B C D
e
E E1 e
A1
1.270TYP
0.050TYP
B A2
L
A
SGM8651/2/3/4/5
PACKAGE OUTLINE DIMENSIONS
MSOP-8
b
C
Symbol
A A1 A2 b c D e E E1 L
Dimensions In Millimeters Min Max
0.800 1.200 0.000 0.200 0.760 0.970 0.30 TYP 0.15 TYP 2.900 3.100 0.65 TYP 2.900 3.100 4.700 5.100 0.410 0.650 0 6
Dimensions In Inches Min Max
0.031 0.047 0.000 0.008 0.030 0.038 0.012 TYP 0.006 TYP 0.114 0.122 0.026 TYP 0.114 0.122 0.185 0.201 0.016 0.026 0 6
E1
E
e
D
A1
L
A2 A
SGM8651/2/3/4/5
PACKAGE OUTLINE DIMENSIONS
MSOP-10
b
C
Symbol
E1
Dimensions In Millimeters Min Max
0.800 1.200 0.000 0.200 0.760 0.970 0.30 TYP 0.152 TYP 2.900 3.100 0.50 TYP 2.900 3.100 4.700 5.100 0.410 0.650 0 6
Dimensions In Inches Min Max
0.031 0.047 0.000 0.008 0.030 0.038 0.012 TYP 0.006 TYP 0.114 0.122 0.020 TYP 0.114 0.122 0.185 0.201 0.016 0.026 0 6
L
e
A2 A A1
A A1 A2 b c D e E E1 L
E
D
SGM8651/2/3/4/5
PACKAGE OUTLINE DIMENSIONS
SO-16
D C L
Symbol
A A1 A2 b c D E E1 e L
Dimensions In Millimeters Min Max
1.350 1.750 0.100 0.250 1.350 1.550 0.330 0.510 0.170 0.250 9.800 10.20 3.800 4.000 5.800 6.200 1.270 (BSC) 0.400 1.270 0 8
Dimensions In Inches Min Max
0.053 0.069 0.004 0.010 0.053 0.061 0.013 0.020 0.007 0.010 0.386 0.402 0.150 0.157 0.228 0.244 0.050 (BSC) 0.016 0.050 0 8
E1
E
e
A2
A1 b
A
SGM8651/2/3/4/5
PACKAGE OUTLINE DIMENSIONS
TSSOP-16
A b
Symbol
E1 E
Dimensions In Millimeters Min Max
5.100 4.500 0.300 0.200 6.550 1.100 0.800 1.000 0.020 0.150 0.65 (BSC) 0.500 0.700 0.25(TYP) 1 7 4.900 4.300 0.190 0.090 6.250
Dimensions In Inches Min Max
0.193 0.169 0.007 0.004 0.246 0.201 0.177 0.012 0.008 0.258 0.043 0.031 0.039 0.001 0.006 0.026 (BSC) 0.020 0.028 0.01(TYP) 1 7
PIN #1 IDENT. e A2 A
C D L H A1
A
D E b c E1 A A2 A1 e L H
SGM8651/2/3/4/5
REVISION HISTORY
Location Page
9/05-- Data Sheet changed from REV.A to REV.B Added SGM8655 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Universal Changes to PRODUCT DESCRIPTION, FEATURES, and PIN CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Changes to ELECTRICAL CHARACTERISTICS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Updated PACKAGE/ORDERING INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 11/06-- Data Sheet changed from REV. B to REV. C Changes to ABSOLUTE MAXIMUM ATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Shengbang Microelectronics Co, Ltd
Unit 3, ChuangYe Plaza No.5, TaiHu Northern Street, YingBin Road Centralized Industrial Park Harbin Development Zone Harbin, HeiLongJiang 150078 P.R. China Tel.: 86-451-84348461 Fax: 86-451-84308461 www.sg-micro.com
SGM8651/2/3/4/5

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