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(R)
LM2904
LOW POWER DUAL OPERATIONAL AMPLIFIERS
.I .LARGEDCVOLTAGEGAI .WI .VERYLOWSUPPLYCURRENT/ .LOWI .LOWI .I .DI .LARGE
NTERNALLY FREQUENCY COMPENSATED N : 100dB DE BANDWIDTH (unity gain) : 1.1MHz (temperature compensated) OP (500A) ESSENTIALLY INDEPENDENT OF SUPPLY VOLTAGE NPUT BIAS CURRENT : 20nA (temperature compensated) NPUT OFFSET CURRENT : 2nA NPUT COMMON-MODE VOLTAGE RANGE INCLUDES GROUND FFERENTIAL INPUT VOLTAGE RANGE EQUAL TO THE POWER SUPPLY VOLTAGE OUTPUT VOLTAGE SWING 0V TO (VCC - 1.5V)
N DIP8 (Plastic Package)
D SO8 (Plastic Micropackage)
P TSSOP8 (Thin Shrink Small Outline Package)
ORDER CODES
Part Number LM2904 Temperature Range -40oC, +125oC Package N * D * P *
DESCRIPTION This circuit consists of two independent,high gain, internally frequency compensated which were designed specifically for automotive and industrial control system. It operates from a single power supply over a wide range of voltages. The low power supply drain is independentof the magnitude of the power supply voltage. Application areas include transducer amplifiers, dc gain blocks and all the conventional op-amp circuits which now can be more easily implementedin single power supply systems. For example, these circuits can be directly supplied with off the standard + 5V which is used in logic systems and will easily provide the required interface electronics without requiring any additional power supply. In the linear mode the input common-mode voltage range includes ground and the output voltage can also swing to ground, even though operated from only a single power supply voltage.
January 1999
Example : LM2904D
PIN CONNECTIONS (top view)
1 2 3 4
1 2 3 4 - Output 1 - Inverting input 1 - Non-inverting input 1 - VCC
8 + + 7 6 5
5 - Non-inverting input 2 6 - Inverting input 2 7 - Ouput 2 + 8 - VCC 1/12
LM2904
SCHEMATIC DIAGRAM (1/2 LM2904)
VCC
6 A
4 A CC
100 A Q5 Q6
Inve rting input
Q2 Q1
Q3 Q4 Q11 Q7 R SC
Non-inve rting input
Output
Q13 Q10 Q8 Q9 Q12 50 A GND
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vi Vid Ptot Iin Toper Tstg Supply Voltage Input Voltage Differential Input Voltage Output Short-circuit Duration - (note 2) Power Dissipation Input Current - (note 1) Operating Free-air Temperature Range Storage Temperature Range 500 50 -40 to +125 -65 to +150 mW mA
o o
Parameter
LM2904 +32 -0.3 to +32 +32
Unit V V V
C C
2/12
LM2904
ELECTRICAL CHARACTERISTICS VCC+ = +5V, VCC- = Ground, VO = 1.4V, Tamb = 25oC (unless otherwise specified)
Symbol Vio Iio Iib Parameter Input Offset Voltage - (note 3) o Tamb = 25 C Tmin. Tamb Tmax. Input Offset Current o Tamb = 25 C Tmin. Tamb Tmax. Input Bias Current - (note 4) Tamb = 25oC Tmin. Tamb Tmax. Large Signal Voltage Gain (VCC = +15V, RL = 2k, VO = 1.4V to 11.4V) o Tamb = 25 C Tmin. Tamb Tmax. Supply Voltage Rejection Ratio (RS = 10k) + (VCC = 5 to 30V) Tamb = 25oC Tmin. Tamb Tmax. Supply Current, all Amp, no Load VCC = +5V, Tmin. Tamb Tmax. VCC = +30V, Tmin. Tamb Tmax. Input Common Mode Voltage Range (VCC = +30V) - (note 6) o Tamb = 25 C Tmin. Tamb Tmax. Common-mode Rejection Ratio (RS = 10k) Tamb = 25oC Tmin. Tamb Tmax. Output Source Current (VCC = +15V, Vo = 2V, Vid = +1V) Output Current Sink (Vid = -1V) VCC = +15V, V O = 2V VCC = +15V, V O = +0.2V Output Voltage Swing (RL = 2k) Tamb = 25oC Tmin. Tamb Tmax. + High Level Output Voltage (VCC = 30V) o R L = 2k Tamb = 25 C Tmin. Tamb Tmax. o R L = 10k Tamb = 25 C Tmin. Tamb Tmax. Low Level Output Voltage (R L = 10k) Tamb = 25oC Tmin. Tamb Tmax. Slew Rate (VCC = 15V, VI = 0.5 to 3V, RL = 2k, CL = 100pF, unity gain) Gain Bandwidth Product (VCC = 30V, f = 100kHz, Vin = 10mV, RL = 2k, C L = 100pF) Total Harmonic Distortion (f = 1kHz, Av = 20dB, RL = 2k, VCC = 30V, C L = 100pF, VO = 2 PP) Min. Typ. 2 Max. 7 9 nA 2 30 40 nA 20 150 200 V/mV 50 25 100 dB 65 65 100 mA 0.7 1.2 2 V 0 0 70 60 20 10 12 0 0 26 26 27 27 27 28 mV 5 20 20 V/s 0.3 0.6 MHz 0.7 1.1 % 0.02 85 mA 40 20 50 VCC+-1.5 VCC+-2 60 mA A V
+ VCC -1.5 VCC+-2
Unit mV
Avd
SVR
ICC Vicm
CMR
dB
Isource Isink
VOPP VOH
V
VOL SR GBP
THD
3/12
LM2904
ELECTRICAL CHARACTERISTICS (continued)
Symbol DVio DIio VO1/VO2
N otes :
Parameter Input Offset Voltage Drift Input Offset Current Drift Channel Separation (note 5) 1kHz f 20kHz
Min.
Typ. 7 10 120
Max 30 300
Unit o A/ C o pA/ C dB
1. This input current only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistor becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-amps to go to the VCC voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output will set up again for input voltage higher than -0.3V. 2. Short-circuits from the output to VCC can cause excessive heating if VCC + > 15V. The maximum output current is approximatively 40mA independent of the magnitude of VCC . Destructive dissipation can result from simultaneous short-circuits on all amplifi ers. 3. VO = 1.4V, RS = 0, 5V < VCC+ < 30V, 0 < Vic < VCC+ - 1.5V. 4. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines. 5. Due to the proximity of external components insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequences. 6. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC+ - 1.5V. But either or both inputs can go to +32V without damage.
O PEN LOOP FREQUENCY RES PO NS E (NOTE 3)
140
0.1 F VI VCC /2 + 10M
LARGE S IGNAL FR EQUENCY R ES P ONSE
20
100k 1k +15V VO +7V + 2k
VOLTAGE GAIN (dB)
VCC VO
OUTPUT SWING (Vpp)
120 100 80 60 40 20 0
1.0 10 100
15
VI
VCC = 30V & -55 C Tamb +125 C
10
5
VCC = +10 to + 15V & -55 C Tamb +125 C
0
1k 10k 100k 1M 10M
1k
10k
100k
1M
FREQUENCY (Hz) VOLAGE FOLLOWER P ULSE R ES PONSE
4 10
FR EQUENCY (Hz) OUTPUT CHARACTERISTICS
VCC = +5V VCC = +15V VCC = +30V 1
v cc v cc /2 IO + VO
OUTPUT VOLTAGE (V)
2 1 0
INPUT VOLTAGE (V)
3 2 1
OUTPUT VOLTAGE (V)
3
RL 2 k VCC = +15V
0.1
0.01
0 10 20 30 40
0,001 0,01 0,1
T amb = +25 C 1 10 100
TIME (s )
OUTP UT S INK CURRENT (mA)
4/12
LM2904
VOLTAGE FOLLOWER P ULSS E RES PONSE (SMALL S IGNAL)
500
OUTP UT CHARACTERISTICS OUTPUT VOLTAGE REFERENCED
8
VCC
OUTPUT VOLTAGE (mV)
7 6
VCC /2 + VO IO
450
el
+ eO 50pF
TO VCC+ (V)
400 Inp ut 350 Outpu t 300 Tamb = +25 C VCC = 30 V
0 1 2 3 4 5 6 7 8
5 4 3 2 1
0,001 0,01
-
Inde pendent of V CC T amb = +25 C
250
0,1
1
10
100
TIME (s) INPUT CURRENT (Note 1)
90 90 80 VI = 0 V VCC = +30 V 80 70 60 50 40 30 20 10 0
-35 -15 5 25 45 65 85 105 125
OUTP UT SOURCE CURRENT (mA) CURRENT LIMITING (Note 1)
OUTPUT CURRENT (mA)
-
INPUT CURRENT (mA)
IO
70 60 50 40 30 20 10 0
-55
+
VCC = +15 V
VCC = +5 V
-55 -35
-15
5
25
45
65
85 105
125
TEMPERATURE ( C) INPUT VOLTAGE RANGE
15 4
TEMPERATURE ( C) S UPP LY CURRENT
VCC
SUPPLY CURRENT (mA)
INPUT VOLTAGE (V)
3
mA
ID
10
NOga tive
-
2
+
5
P os itive
Ta mb = 0 C to +125 C 1 Tamb = -55 C
0
5
10
15
0
10
20
30
POWER S UPP LY VOLTAGE (-V)
POS ITIVE SUPP LY VOLTAGE (V)
5/12
LM2904
160 INPUT CURRENT (nA) R L = 20k VOLTAGE GAIN (dB) 120 R L = 2k 100
75
80
50
40
25
Tamb= +25 C
0
10
20
30
40
P OS ITIVE S UP P LY VOLTAGE (V)
160 R L = 20k
0 10 20 30 P OS ITIVE S UP P LY VOLTAGE (V)
GAIN BANDWIDTH PRODUCT (MHz)
1.5 1.35 1.2 1.05 0.9 0.75 0.6 0.45 0.3 0.15 0 -55-35-15 5 25 45 65 85 105 125 TEMPERATURE ( C)
COMMON MODE REJECTION RATIO (dB)
VOLTAGE GAIN (dB)
120 R L = 2k
80
VCC =
15V
40
0
10
20
30
P OS ITIVE S UP P LY VOLTAGE (V)
POWER SUPPLY REJECTION RATIO (dB)
115 110 S VR 105 100 95 90 85 80 75 70 65 60-55-35-15 5 25 45 65 85 105 125 TEMPERATURE ( C)
115 110 105 100 95 90 85 80 75 70 65 60-55-35-15 5 25 45 65 85 105 125 TEMPERATURE ( C)
6/12
LM2904
TYPICAL APPLICATIONS (single supply voltage) VCC = +5V DC AC COUPLED INVERTING AMPLIFIER AC COUPLED NON-INVERTING AMPLIFIER
Rf 100k
CI
R1 10k
1/2 LM29 04
R1 (as shown AV = -10)
A V= -
Rf
C1 0.1 F
R1 100k
R2 1M
A V= 1 + R2 R1 (as s hown A = 11) V Co
e o0
RL 10k
Co
e o0
RL 10k
2V P P
CI
1 /2 LM290 4
2V P P
eI ~
R2 V 100k CC
RB 6.2k R3 100k
RB 6.2k
eI ~
R3 1M
R4 100k
C1 10 F
V CC
C2 10 F R5 100k
NON-INVERTING DC AMPLIFIER
DC SUMMING AMPLIFIER
e1
100k
AV= 1 + R2 R1
10k 1/2 LM2904
eO +5V
(As s hown AV = 101)
100k e2 100k 100k
1/2 LM2904
eO
R2 1M R1 10k
e O (V)
e3
100k
0 e I (mV)
e4
100k
eo = e 1 + e2 - e3 - e4 where (e1 + e2) (e 3 + e4) to keep eo 0V
7/12
LM2904
HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER USING SYMMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT
1/2
II eI
R2 100k R1 100k
1/2 LM29 04
IB LM2904 2N 929
0.001 F
eo
R4 100k R3 100k
1/2 LM29 04
IB
+V1 +V2
Vo
IB
IB
3M
1/2 LM2904
if R1 = R 5 and R 3 = R 4 = R 6 = R7 2R1 eo = [ 1+ ] (e2 - e1) R2 As shown eo = 101 (e2 - e1).
1.5M
IB
Input curre nt compensa tion
HIGH INPUT Z ADJUSTABLE GAIN DC INSTRUMENTATION AMPLIFIER
LOW DRIFT PEAK DETECTOR
R1 100k
IB
R3 100k R4 100k
1/2 LM2904
e1
1/2 LM2904
I B LM2904
1 F
1/2
eo
R2 2k
G ain adjus t
1/2 LM2904
eO
eI
C
2IB 2N 929
Zo
0.001 F
ZI
2IB
R5 100k
IB
3R 3M
1/2 LM2904
1/2 LM2904
e
2
R6 100k
R7 100k
R 1M
IB
Inp ut curre nt c ompe ns a tion
if R 1 = R 5 and R 3 = R 4 = R 6 = R 7 2R1 e o = [ 1+ ] (e2 - e 1) R2 As shown eo = 101 (e2 - e 1)
8/12
LM2904
ACTIVE BAND-PASS FILTER
R1 100k
C1 330pF
R2 100k
1/2 LM2904
+V1
R5 470k
1/2 LM2904
R4 10M
R3 100k
C2 330pF
1/2 LM2904
R6 470k
Vo
R7 100k
V CC
Fo = 1kHz Q = 50 AV = 100 (40dB)
R8 100k
C3 10 F
9/12
LM2904
PACKAGE MECHANICAL DATA 8 PINS - PLASTIC DIP
Dimensions A a1 B b b1 D E e e3 e4 F i L Z
Min. 0.51 1.15 0.356 0.204 7.95
Millimeters Typ. 3.32
Max.
Min. 0.020 0.045 0.014 0.008 0.313
Inches Typ. 0.131
Max.
1.65 0.55 0.304 10.92 9.75 2.54 7.62 7.62 6.6 5.08 3.81 1.52
0.065 0.022 0.012 0.430 0.384 0.100 0.300 0.300 0260 0.200 0.150 0.060
10/12
DIP8.TBL
3.18
0.125
PM-DIP8.EPS
LM2904
PACKAGE MECHANICAL DATA 8 PINS - PLASTIC MICROPACKAGE (SO)
Dimensions A a1 a2 a3 b b1 C c1 D E e e3 F L M S
Min. 0.1 0.65 0.35 0.19 0.25 4.8 5.8
Millimeters Typ.
Max. 1.75 0.25 1.65 0.85 0.48 0.25 0.5 45 (typ.) 5.0 6.2
o
Min. 0.004 0.026 0.014 0.007 0.010 0.189 0.228
Inches Typ.
Max. 0.069 0.010 0.065 0.033 0.019 0.010 0.020 0.197 0.244
1.27 3.81 3.8 0.4 4.0 1.27 0.6 8 (max.)
o
0.050 0.150 0.150 0.016 0.157 0.050 0.024
11/12
SO8.TBL
PM-SO8.EPS
LM2904
PACKAGE MECHANICAL DATA 8 PINS - THIN SHRINK SMALL OUTLINE PACKAGE
PREVIEW
Dim. A A1 A2 b c D E E1 e k l
Millimeters Min. 0.05 0.80 0.19 0.09 2.90 4.30 0
o
Inches Max. 1.20 0.15 0.01 0.031 0.007 0.003 0.114 0.169 0
o
Typ.
Min.
Typ.
Max. 0.05 0.006
1.00
1.05 0.30 0.20
0.039
0.041 0.15 0.012
3.00 6.40 4.40 0.65
3.10 4.50 8
o
0.118 0.252 0.173 0.025
0.122 0.177 8
o
0.50
0.60
0.75
0.09
0.0236
0.030
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST log o is a trademark of STMicroelectronics (c) 1999 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdo m - U.S.A.
ORDER CODE :
12/12

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