STMICROELECTRONICS LM2904W

LM2904W
LOW POWER DUAL OPERATIONAL AMPLIFIERS
■ INTERNALLY FREQUENCY COMPENSATED
■ LARGE DC VOLTAGE GAIN : 100dB
■ WIDE BANDWIDTH (unity gain) : 1.1MHz
(temperature compensated)
■ VERY LOW SUPPLY CURRENT/OP (500µA)
■ LOW INPUT BIAS CURRENT : 20nA
(temperature compensated)
■ LOW INPUT OFFSET CURRENT : 2nA
■ INPUT COMMON-MODE VOLTAGE RANGE
N
DIP8
(Plastic Package)
INCLUDES GROUND
■ DIFFERENTIAL INPUT VOLTAGE RANGE
EQUAL TO THE POWER SUPPLY VOLTAGE
■ LARGE OUTPUT VOLTAGE SWING 0V TO
(VCC - 1.5V)
■ ESD INTERNAL PROTECTION : 2kV
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 independent of 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 implemented in single power supply ssystems. 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 groung, even though operated
from only a single power supply voltage.
ORDER CODE
Part
Number
LM2904W
P
TSSOP8
(Thin Shrink Small Outline Package)
PIN CONNECTIONS (top view)
N
D
P
-40°C, +125°C
•
•
•
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
P = Thin Shrink Small Outline Package (TSSOP) - only available
in Tape & Reel (PT)
8
1
2
-
3
+
Package
Temperature
Range
September 2003
D
SO8
(Plastic Micropackage)
4
7
-
6
+
5
1/10
LM2904W
SCHEMATIC DIAGRAM (1/2 LM2904W)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
+32
V
-0.3v to Vcc + 0.3
V
VCC
Supply Voltage
Vid
Differential Input Voltage
VI
Input Voltage
-0.3v to Vcc + 0.3
V
2
kV
Infinite
s
500
mW
ESD
Human Body Model 3)
Output Short-circuit Duration1)
ptot
Iin
Power Dissipation
2)
50
mA
Toper
Operating Free-Air Temperature Range
-40 to +125
°C
Tstg
Storage Temperature Range
-65 to +150
°C
Input Current
1.
Short-circuits from the output to Vcc can cause excessive heating if Vcc + > 15V. The maximum output current is approximately 40mA,
independent of the magnitude of Vcc . Destructive dissipation can result from simultaneous short-circuits on all amplifiers.
2.
This input current only exists 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 diodes 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 than an input is driven negative.
This is not destructive and normal output will set up again for input voltage higher than -0.3V
Human body model, 100pF discharged through a 1.5KΩ resistor, into pin to pin of device.
3)
OPERATING CONDITIONS
Symbol
VCC
+
Vicm
2/10
Parameter
Supply Voltage
Common Mode Input Voltage Range
Value
Unit
3 to 30
V
VCC+ - 1.5
V
LM2904W
ELECTRICAL CHARACTERISTICS
VCC+ = 5V, V cc- = Ground, VO = 1.4V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Vio
Input Offset Voltage 1)
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
2
7
9
mV
Iio
Input Offset Current
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
2
30
40
nA
Iib
Input Bias Current 2)
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
20
150
200
nA
Avd
Large Signal Voltage Gain
VCC+ = +15V,R L=2kΩ, Vo = 1.4V to 11.4V
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
50
25
100
SVR
Supply Voltage Rejection Ratio (RS ≤10kΩ)
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
65
65
100
Icc
Supply Current, all Amp, no load
VCC = +5V
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
VCC = +30V
0.7
Vicm
Input Common Mode Voltage Range (Vcc= +30V)3)
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
0
0
CMR
Common-mode Rejection Ratio (RS = 10kΩ)
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax.
70
60
85
Isource
Output Short-circuit Current
VCC = +15V, Vo = +2V, Vid = +1V
20
40
Output Sink Current
VO = 2V
VO = +0.2V
10
12
20
50
Isink
VCC = +5V
VCC = +15V
VOPP
Output Voltage Swing (RL = 2kΩ
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax
0
0
VOH
High Level Output Voltage (Vcc + 30V)
RL = 2kΩ
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax.
Tamb = +25°C
RL = 10kΩ
Tmin ≤ Tamb ≤ Tmax.
26
26
27
27
VOL
SR
GBP
Low Level Output Voltage (RL = 10kΩ)
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
Slew Rate
Vcc = 15V, Vi = 0.5 to 3V, RL = 2kΩ, CL = 100pF,
unity gain
Gain Bandwidth Product f = 100kHz
Vcc = 30V,Vin = 10mV, RL = 2kΩ, CL = 100pF
V/mV
dB
1.2
2
mA
VCC+ -1.5
VCC+ -2
V
dB
60
mA
mA
VCC+ -1.5
VCC+ -2
27
V
V
28
5
20
20
mV
V/µs
0.3
0.6
0.7
1.1
MHz
3/10
LM2904W
Symbol
Parameter
Min.
Typ.
Total Harmonic Distortion
f = 1kHz, AV = 20dB, RL = 2kΩ, Vo = 2Vpp,
CL = 100pF, Vcc = 30V
THD
Max.
Unit
%
0.02
DVio
Input Offset Voltage Drift
7
30
µV/°C
DIio
Input Offset Current Drift
10
300
pA/°C
4)
Channel Separation
1kHz ≤ f ≤ 20kHz
VO1/VO2
1.
2.
3.
4.
dB
120
VO = 1.4V, RS = 0Ω, 5V < VCC+ < 30V, 0V < Vic < VCC+ - 1.5V
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 charge
change exists on the input lines
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.
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.
VOLAGE FOLLOWER PULSE RESPONSE
OPEN LOOP FREQUENCY RESPONSE (NOTE 3)
4
140
120
VCC
-
100
VI
VCC/2
VO
+
80
VCC = 30V &
-55°C Tamb +125°C
60
RL 2 kΩ
VCC = +15V
3
2
1
0
40
3
20
VCC = +10 to + 15V &
-55°C Tamb +125°C
0
1.0
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
INPUT
VOLTAGE (V)
VOLTAGE GAIN (dB)
OUTPUT
VOLTAGE (V)
10MΩ
0.1µF
2
1
0
+
2k Ω
10
5
0
1k
1
v cc
v cc /2
100k
1M
-
0.1
IO
VO
+
Tamb = +25°C
0.01
10k
FREQUENCY (Hz)
4/10
OUTPUT VOLTAGE (V)
OUTPUT SWING (Vpp)
VO
+7V
VCC = +5V
VCC = +15V
VCC = +30V
+15V
VI
40
10
100k Ω
15
30
OUTPUT CHARACTERISTICS
20
-
20
TIME (µs)
LARGE SIGNAL FREQUENCY RESPONSE
1k Ω
10
0,001
0,01
0,1
1
10
100
OUTPUT SINK CURRENT (µ A)
LM2904W
INPUT VOLTAGE RANGE
VOLTAGE FOLLOWER PULSSE RESPONSE
(SMALL SIGNAL)
15
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (mV)
500
+
450
eO
el
-
50pF
400
Input
350
Output
300
10
Positive
5
Tamb = +25°C
VCC = 30 V
250
0
1
2
3
4
5
6
7
8
0
TIME (m s)
5
SUPPLY CURRENT
V CC
VCC
5
SUPPLY CURRENT (mA)
+
V CC /2
VO
IO
-
4
Independent of V CC
3
T amb = +25°C
2
ID
mA
3
-
2
+
Tamb = 0°C to +125°C
1
Tamb = -55°C
1
0,001 0,01
0,1
1
10
100
0
OUTPUT SOURCE CURRENT (mA)
10
20
INPUT CURRENT (Note 1)
80
160
R L = 20kΩ
VOLTAGE GAIN (dB)
VI = 0 V
70
VCC = +30 V
60
50
VCC = +15 V
40
30
VCC = +5 V
20
30
POSITIVE SUPPLY VOLTAGE (V)
90
INPUT CURRENT (mA)
15
4
7
6
10
POWER SUPPLY VOLTAGE (±V)
OUTPUT CHARACTERISTICS
8
TO VCC+ (V)
OUTPUT VOLTAGE REFERENCED
Négative
120
R L = 2k Ω
80
40
10
0
-55 -35
-15
5
25
45
65
85 105
0
125
CURRENT LIMITING (Note 1)
INPUT CURRENT (nA)
OUTPUT CURRENT (mA)
-
IO
70
60
20
30
40
100
90
80
10
POSITIVE SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
+
50
40
30
20
75
50
25
Tamb= +25°C
10
0
-55 -35
-15
5
25
45
65
85 105
TEMPERATURE (°C)
125
0
10
20
30
POSITIVE SUPPLY VOLTAGE (V)
5/10
LM2904W
TYPICAL SINGLE - SUPPLY APPLICATIONS
AC COUPLED INVERTING AMPLIFIER
160
R L = 20k Ω
VOLTAGE GAIN (dB)
120
Rf
100kΩ
R L = 2k Ω
80
Rf
AV = R1
(as shown AV = -10)
R1
10kΩ
CI
40
Co
1/2
LM2904
0
10
20
30
eI ~
R2
VCC 100kΩ
2VPP
0
eo
RB
6.2kΩ
R3
100kΩ
RL
10kΩ
C1
10µF
1.5
1.35
1.2
1.05
0.9
0.75
0.6
VCC =
15V
AC COUPLED NON-INVERTING AMPLIFIER
0.45
R1
100kΩ
0.3
0.15
0
-55-35-15 5 25 45 65 85 105 125
POWER SUPPLY REJECTION RATIO (dB)
COMMON MODE REJECTION RATIO (dB)
A V= 1 + R2
R1
(as shown A V = 11)
C1
0.1µF
TEMPERATURE (°C)
6/10
R2
1MΩ
CI
Co
1/2
LM2904
RB
6.2kΩ
115
110
SVR
105
100
95
90
85
80
75
70
65
60-55-35-15 5 25 45 65 85 105 125
TEMPERATURE (°C)
R3
1MΩ
eI ~
RL
10k Ω
R4
100kΩ
VCC
C2
10µF
R5
100kΩ
NON-INVERTING DC GAIN
A V = 1 + R2
R1
(As shown A V = 101)
10kΩ
115
110
105
100
95
90
85
80
75
70
65
60-55-35-15 5 25 45 65 85 105 125
TEMPERATURE (°C)
2VPP
0
eo
1/2
LM2904
R2
1M Ω
R1
10kΩ
eO
+5V
e O (V)
GAIN BANDWIDTH PRODUCT (MHz)
POSITIVE SUPPLY VOLTAGE (V)
0
e I (mV)
LM2904W
DC SUMMING AMPLIFIER
e1
HIGH INPUT Z ADJUSTABLE GAIN DC
INSTRUMENTATION AMPLIFIER
100kΩ
R1
100k Ω
100kΩ
e2
100kΩ
e3
100kΩ
1/2
LM2904
eO
R3
100k Ω
1/2
LM2904
e1
R4
100k Ω
eO
1/2
LM2904
Gain adjust
R2
2k Ω
R5
100k Ω
100kΩ
e4
R6
100k Ω
1/2
LM2904
100kΩ
R7
100k Ω
e2
eo = e1 + e2 - e3 - e4
where (e1 + e2) ≥ (e3 + e4)
to keep eo ≥ 0V
If R1 = R5 and R3 = R4 = R6 = R7
eo = [ 1 + 2R1 ] (e2 - e1)
R2
As shown eo = 101 (e2 - e1)
HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER
LOW DRIFT PEAK DETECTOR
R4
100kΩ
R2
100kΩ
R1
100kΩ
IB
1/2
1/2
LM2904
R3
100kΩ
eI
1/2
LM2904
+V1
+V2
ZI
2IB
IB
I
2IB
1/2
LM2904
Input current
compensation
R1
100kΩ
eo
C1
330pF
1/2
LM2904
R2
100kΩ
+V1
R5
470kΩ
R4
10MΩ
R3
100kΩ
C2
330pF
1/2
LM2904
R6
470kΩ
Vo
1/2
LM2904
R7
100kΩ
VCC
2N 929
R8
100kΩ
IB
3MΩ
1.5MΩ
3R
3M Ω
ACTIVER BADPASS FILTER
0.001µ F
IB
0.001µ F
IB
IB
USING SYMMETRICAL AMPLIFIERS TO
REDUCE INPUT CURRENT
I
Zo
2N 929
Vo
If R1 = R5 and R3 = R4 = R6 = R7
eo = [ 1 + 2R1 ] (e2 - e1)
R2
As shown eo = 101 (e2 - e1)
eI
C
1µ F
R
1M Ω
1/2
I B LM2904
eo
I B LM2904
1/2
LM2904
IB
C3
10µF
Fo = 1kHz
Q = 50
Av = 100 (40dB)
1/2
LM2904
Input current compensation
7/10
LM2904W
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC DIP
Millimeters
Inches
Dim.
Min.
A
a1
B
b
b1
D
E
e
e3
e4
F
i
L
Z
8/10
Typ.
Max.
Min.
3.32
0.51
1.15
0.356
0.204
0.020
0.045
0.014
0.008
0.065
0.022
0.012
0.430
0.384
0.313
2.54
7.62
7.62
3.18
Max.
0.131
1.65
0.55
0.304
10.92
9.75
7.95
Typ.
0.100
0.300
0.300
6.6
5.08
3.81
1.52
0.125
0260
0.200
0.150
0.060
LM2904W
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC MICROPACKAGE (SO)
Millimeters
Inches
Dim.
Min.
A
a1
a2
a3
b
b1
C
c1
D
E
e
e3
F
L
M
S
Typ.
Max.
0.65
0.35
0.19
0.25
1.75
0.25
1.65
0.85
0.48
0.25
0.5
4.8
5.8
5.0
6.2
0.1
Min.
Typ.
Max.
0.026
0.014
0.007
0.010
0.069
0.010
0.065
0.033
0.019
0.010
0.020
0.189
0.228
0.197
0.244
0.004
45° (typ.)
1.27
3.81
3.8
0.4
0.050
0.150
4.0
1.27
0.6
0.150
0.016
0.157
0.050
0.024
8° (max.)
9/10
LM2904W
PACKAGE MECHANICAL DATA
8 PINS -THIN SHRINK SMALL OUTLINE PACKAGE
k
c
0.25mm
.010 inch
GAGE PLANE
L1
L
L
L1
C
SEATING
PLANE
E1
A
E
A2
A1
5
4
4
5
D
b
e
8
1
8
1
PIN 1 IDENTIFICATION
Millimeters
Inches
Dim.
Min.
A
A1
A2
b
c
D
E
E1
e
k
l
L
L1
0.05
0.80
0.19
0.09
2.90
4.30
0°
0.50
0.45
Typ.
1.00
3.00
6.40
4.40
0.65
0.60
0.600
1.000
Max.
Min.
1.20
0.15
1.05
0.30
0.20
3.10
0.01
0.031
0.007
0.003
0.114
4.50
0.169
8°
0.75
0.75
0°
0.09
0.018
Typ.
0.039
0.118
0.252
0.173
0.025
0.0236
0.024
0.039
Max.
0.05
0.006
0.041
0.15
0.012
0.122
0.177
8°
0.030
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.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners.
© 2003 STMicroelectronics - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Belgium - Brazil - Canada - China - Czech Repubic - Finland - France - Germany
Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain
Sweden - Switzerland - United Kingdom - United States
http://www.st.com
10/10