LM2902B — Datasheet Summary, Specs & Alternatives

01 — Overview

This Texas Instruments datasheet covers the LM324, LM2902, and their related part families, including low-power B versions. It serves as a comprehensive guide for engineers designing with these quadruple operational amplifiers. Key features include a wide supply range of 3V to 36V, typical input offset voltage of 600µV, and high ESD ratings up to 2kV HBM. The B versions offer improved specifications like lower quiescent current (240µA) and integrated RF/EMI filters. These versatile op-amps are ideal for cost-sensitive applications in power supplies, server units, printers, and consumer electronics.

02 — Key specifications

Datasheet parameters

Parameter	Min	Typ	Max	Conditions
quiescent current	700 µA	—	1.2 mA	VO = 2.5V, no load; Full range
output current	10 mA	20 mA	—	Sink, VCC = 15V, VID = -1V, VO = 15V; 25°C
supply voltage range	—	3 µV	—	f = 0.1Hz to 10Hz
input offset voltage drift	—	7 µV/°C	—	RS = 0Ω, TA = -40°C to +125°C
input offset voltage	600 µV	—	3 mV	LM2902B; TA = -40°C to +125°C
gain bandwidth	—	1.2 MHz	—	RL = 1MΩ, CL = 20pF (seeFigure 6-1for test circuit)
cmrr	70 dB	80 dB	—	VS = 3V to 36V, (V-) ≤ VCM≤ (V+) - 1.5V
operating temperature	-40 °C	—	125 °C	LM2902xxx, LM2902Bx
input offset current	—	500 pA	4 nA
input bias current	—	—	-60 nA	TA = -40°C to +125°C
slew rate	—	500 kV/s	—	RL = 1MΩ, CL = 30pF, VI = ±10V (seeFigure 6-1for test circuit)
psrr	65 dB	100 dB	—
input voltage noise density	—	35 nV/√Hz	—	RS = 100Ω, VI = 0V, f = 1kHz (seeFigure 6-2for test circuit)
output voltage high	22 V	—	—	VCC = MAX; RL = 2kΩ; Full range
output voltage low	5 mV	—	20 mV	RL≤ 10kΩ; Full range
settling time	—	4 µs	—	To 0.1%, VS = 5V, 2V step, G = +1, CL = 100pF

03 — Alternatives

Closest matches to LM2902B

LM124 4.0× higher input offset current, 2.5× lower output voltage low, 2.0× higher output current

LM158 5.0× higher input bias current, 4.0× higher input offset current, 2.5× lower output voltage low

LMV358 3.6× lower input offset voltage, 3.5× lower input offset voltage drift, 1.8× lower input voltage noise density

LM358B 8.3× higher input bias current, 6.7× higher supply voltage range, 6.0× lower input offset voltage

TLV2370 8.5× lower output voltage high, 8.0× higher output voltage low, 5.0× lower output current

TSV911AIDT 18.0× lower input offset voltage, 9.0× higher slew rate, 6.7× higher gain bandwidth

BA10324AF 10.0× higher input offset current, 2.5× lower slew rate, 2.4× lower gain bandwidth

LM741 2.7× lower gain bandwidth, 2.1× higher input offset voltage drift, 1.8× lower input offset voltage

04 — FAQ

Frequently asked questions

What is the Common-Mode Rejection Ratio (CMRR) of the LM2902B?

The CMRR is 80 dB when VS = 3V to 36V and (V-) ≤ VCM≤ (V+) - 1.5V.

What is the gain bandwidth of the LM2902B?

The gain bandwidth is 1.2 MHz when RL = 1MΩ and CL = 20pF (see Figure 6-1 for test circuit).

What is the input bias current of the LM2902B at TA = -40°C to +125°C?

The input bias current is -60 nA at TA = -40°C to +125°C.

What is the input offset current?

The input offset current is 500 pA.

What is the input offset voltage for the LM2902B at TA = -40°C to +125°C?

The input offset voltage is 3 mV.

What is the input offset voltage drift when RS = 0Ω and TA = -40°C to +125°C?

The input offset voltage drift is 7 µV/°C.

What is the input voltage noise density when RS = 100Ω, VI = 0V, and f = 1kHz?

The input voltage noise density is 35 nV/√Hz.

What is the operating temperature for the LM2902xxx and LM2902Bx?

The operating temperature is 125 °C for the LM2902xxx and LM2902Bx.