Description
The LM2902/2904 series amplifiers consist of four and two independent high-gain operational amplifiers with very low input offset voltage specification. They have been designed to operate from a single power supply over a wide range of voltages; however operation from split power supplies is also possible. They offer low power supply current independent of the magnitude of the power supply voltage.
The LM2902/2904 series are characterized for operation from -40 to +125 and the dual devices are available in SO-8 and the
quad devices available in SO-14 and TSSOP-14 with industry standard pin-outs. Both use green mold compound as standard.
Features
Wide power supply voltage range:
Single supply: 3V to 36V
Dual supplies: ±1.5V to ±18V
Very low supply current drain
LM2904 500µA – independent of supply voltage
LM2902 700µA – independent of supply voltage
Low input bias current: 20nA
Low Input offset voltage:
A Versions …1mV (Typ)
Non-A Version…2mV(Typ.)
Large DC voltage gain: 100dB
Wide bandwidth (unity gain): 700KHz (temperature compensated)
Internally compensated with unity gain.
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply voltage
Large output voltage swing: 0V to VCC -1.5V
SO-8(duals) and SO-14/TSSOP-14(quads) packages available
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
LM2902/ LM2902A/ LM2904/ LM2904A
DUAL AND QUAD OPERATIONAL AMPLIFIERS
Pin Assignments
(Top View)
1OUT |
1 |
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8 |
VCC |
1IN- |
2 |
- |
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7 |
2OUT |
1IN+ |
3 |
1 |
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6 |
2IN- |
+ |
+ |
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GND |
4 |
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2 - |
5 |
2IN+ |
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SO-8 |
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LM2904/ LM2904A |
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(Top View)
1OUT |
1 |
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14 |
4OUT |
1IN- |
2 |
- 1 |
4 |
- |
13 |
4IN- |
1IN+ |
3 |
+ |
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+ |
12 |
4IN+ |
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VCC |
4 |
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11 |
GND |
2IN+ |
5 |
+ |
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+ |
10 |
3IN+ |
2IN- |
6 |
- 2 |
3 |
- |
9 |
3IN- |
2OUT |
7 |
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8 |
3OUT |
SO-14/TSSOP-14
LM2902/ LM2902A
Notes: |
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. |
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2. |
See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogenand Antimony-free, "Green" |
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and Lead-free. |
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3. |
Halogenand Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and |
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<1000ppm antimony compounds. |
LM2902/ LM2902A/ LM2904/ LM2904A |
1 of 13 |
March 2014 |
Document number: DS36780 Rev. 1 - 2 |
www.diodes.com |
© Diodes Incorporated |
LM2902/ LM2902A/ LM2904/ LM2904A
Schematic Diagram
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Functional Block Diagram of LM2902/ 2902A/ 2904/ 2904A |
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(Each Amplifier) |
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Pin Descriptions |
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LM2902, LM2902A |
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Pin Name |
Pin # |
Function |
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1OUT |
1 |
Channel 1 Output |
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1IN- |
2 |
Channel 1 Inverting Input |
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1IN+ |
3 |
Channel 1 Non-inverting Input |
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VCC |
4 |
Chip Supply Voltage |
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2IN+ |
5 |
Channel 2 Non-inverting Input |
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2IN- |
6 |
Channel 2 Inverting Input |
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2OUT |
7 |
Channel 2 Output |
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3OUT |
8 |
Channel 3 Output |
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3IN- |
9 |
Channel 3 Inverting Input |
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3IN+ |
10 |
Channel 3 Non-inverting Input |
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GND |
11 |
Ground |
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4IN+ |
12 |
Channel 4 Non-inverting Input |
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4IN- |
13 |
Channel 4 Inverting Input |
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4OUT |
14 |
Channel 4 Output |
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LM2904, LM2904A |
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1OUT |
1 |
Channel 1 Output |
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1IN- |
2 |
Channel 1 Inverting Input |
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1IN+ |
3 |
Channel 1 Non-inverting Input |
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GND |
4 |
Ground |
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2IN+ |
5 |
Channel 2 Non-inverting Input |
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2IN- |
6 |
Channel 2 Inverting Input |
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2OUT |
7 |
Channel 2 Output |
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VCC |
8 |
Chip Supply Voltage |
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LM2902/ LM2902A/ LM2904/ LM2904A |
2 of 13 |
March 2014 |
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Document number: DS36780 Rev. 1 - 2 |
www.diodes.com |
© Diodes Incorporated |
LM2902/ LM2902A/ LM2904/ LM2904A
Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.)
Symbol |
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Parameter |
Rating |
Unit |
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VCC |
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Supply Voltage |
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±18 or 36 |
V |
VID |
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Differential Input Voltage |
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36 |
V |
VIN |
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Input Voltage |
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-0.3 to +36 |
V |
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Package thermal impedance |
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SO-8 |
TBD |
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θJA |
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SO-14 |
TBD |
°C/W |
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(Note 5) |
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TSSOP-14 |
TBD |
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Package thermal impedance |
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SO-8 |
TBD |
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θJC |
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SO-14 |
TBD |
°C/W |
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(Note 6) |
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TSSOP-14 |
TBD |
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— |
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Output Short-Circuit to GND |
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VCC ≤ 15V and TA = +25 |
Continuous |
— |
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(One Amplifier) (Note 7) |
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TA |
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Operating Temperature Range |
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-40 to +125 |
°C |
TJ |
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Operating Junction Temperature |
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+150 |
°C |
TST |
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Storage Temperature Range |
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-65 to +150 |
°C |
ESD |
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Human Body Mode ESD Protection (Note 8) |
300 |
V |
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Machine Mode ESD Protection |
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150 |
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Notes: |
4. Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only; functional |
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operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to |
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absolute-maximum-rated conditions for extended periods may affect device reliability. |
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5.Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of +150°C can affect reliability.
6.Maximum power dissipation is a function of TJ(max), θJC, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of +150°C can affect reliability.
7.Short circuits from outputs to VCC or ground can cause excessive heating and eventual destruction.
8.Human body model, 1.5kΩ in series with 100pF.
LM2902/ LM2902A/ LM2904/ LM2904A |
3 of 13 |
March 2014 |
Document number: DS36780 Rev. 1 - 2 |
www.diodes.com |
© Diodes Incorporated |
LM2902/ LM2902A/ LM2904/ LM2904A
Electrical Characteristics (Notes 12 & 13) (@ VCC = +5.0V, TA = +25°C, unless otherwise specified.)
LM2902, LM2902A
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Parameter |
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Conditions |
TA |
Min |
Typ |
Max |
Unit |
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VIC = VCMR min, |
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Non-A |
TA = +25°C |
— |
2 |
7 |
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VIO |
Input Offset Voltage |
VO = 1.4V, |
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Device |
Full range |
— |
— |
10 |
mV |
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VCC = 5V to MAX |
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A-Suffix |
TA = +25°C |
— |
1 |
2 |
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Rs = 0Ω |
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Device |
Full range |
— |
— |
4 |
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∆VIO/∆T |
Input Offset Voltage Temperature |
Rs = 0Ω |
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Full range |
— |
7 |
— |
µV/ |
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Drift |
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IB |
Input Bias Current |
IIN+ or IIN− with OUT in linear range, |
TA = +25°C |
— |
-20 |
-200 |
nA |
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VCMR = 0V (Note 9) |
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Full range |
— |
— |
-500 |
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IIO |
Input Offset Current |
IIN+ - IIN−, VCM = 0V |
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TA = +25°C |
— |
2 |
50 |
nA |
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Full range |
— |
— |
150 |
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∆IIO/∆T |
Input Offset Current Temperature |
— |
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Full range |
— |
10 |
— |
pA/ |
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Drift |
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TA = +25°C |
0 to |
— |
— |
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Input Common-Mode Voltage |
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VCC -1.5 |
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VCMR |
VCC = 30V (Note 10) |
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V |
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Range |
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Full range |
0 to |
— |
— |
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VCC -2.0 |
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ICC |
Supply Current |
VO = 0.5VCC, No Load |
VCC = 30V |
Full range |
— |
1.0 |
3.0 |
mA |
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(Four Amplifiers) |
VO = 0.5VCC, No Load |
VCC = 5V |
Full range |
— |
0.7 |
1.2 |
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AV |
Voltage Gain |
VCC = 15V, VOUT = 1V to 11V, |
TA = +25°C |
25 |
100 |
— |
V/mV |
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RL ≥ 2kΩ |
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Full range |
15 |
— |
— |
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CMRR |
Common Mode Rejection Ratio |
DC, VCMR = 0V to VCC-1.5V |
TA = +25°C |
60 |
70 |
— |
dB |
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PSRR |
Power Supply Rejection Ratio |
VCC = 5V to 30V |
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TA = +25°C |
70 |
100 |
— |
dB |
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f = 1kHz to 20kHz |
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Amplifier to Amplifier Coupling |
(Input Referred) |
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TA = +25°C |
— |
-120 |
— |
dB |
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(Note 11) |
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VIN- = 1V, VIN+ = 0V, VCC = 15V, |
TA = +25°C |
12 |
50 |
— |
µA |
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VO = 200mV |
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ISINK |
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Sink |
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Output Current |
VIN- = 1V, VIN+ = 0V, VCC = 15V, |
TA = +25°C |
10 |
20 |
— |
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VO = 15V |
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Full range |
5 |
— |
— |
mA |
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+ |
- |
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TA = +25°C |
-20 |
-40 |
-60 |
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ISOURCE |
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Source |
VIN = 1V, VIN = 0V, VCC = 15V, |
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VO = 0V |
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Full range |
-10 |
— |
— |
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ISC |
Short-Circuit to Ground |
VCC = 5V, GND = -5V, VO = 0V |
TA = +25°C |
— |
±40 |
±60 |
mA |
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RL = 10KΩ |
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TA = +25°C |
— |
VCC-1.5 |
— |
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VOH |
High-Level Output Voltage Swing |
VCC = 30V |
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RL = 2KΩ, |
Full range |
26 |
— |
— |
V |
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RL ≥ 10KΩ |
27 |
28 |
— |
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VOL |
Low-Lever Output Voltage Swing |
RL 10KΩ |
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Full range |
— |
5 |
20 |
mV |
AC Electrical Characteristics (Notes 12 & 13) (@ VCC = ±15.0V, TA = +25°C, unless otherwise specified.)
LM2902, LM2902A |
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Parameter |
Conditions |
Typ |
Unit |
SR |
Slew Rate at Unity Gain |
RL = 1MΩ, CL = 30pF, VI = ±10V |
0.3 |
V/µs |
B1 |
Unity Gain Bandwidth |
RL = 1MΩ, CL = 20pF |
0.7 |
MHz |
Vn |
Equivalent Input Noise Voltage |
RS = 100Ω, VI = 0V, f = 1KHz |
40 |
nV/√Hz |
Notes: |
9. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the |
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output so no loading change exists on the input lines. |
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10.The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (@ +25°C). The upper end of the common-mode voltage range is VCC -1.5V (@ 25°C), but either or both inputs can go to +36V without damage, independent of the magnitude of VCC.
11.Due to 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 frequencies.
12.Typical values are all at TA=25°C conditions and represent the most likely parametric norm as determined at the time of characterization. Actual
typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not guaranteed on shipped production material.
13. All limits are guaranteed by testing or statistical analysis. Limits over the full temperature are guaranteed by design, but not tested in production.
LM2902/ LM2902A/ LM2904/ LM2904A |
4 of 13 |
March 2014 |
Document number: DS36780 Rev. 1 - 2 |
www.diodes.com |
© Diodes Incorporated |