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Texas Instruments LM3900MX — Logic ICs

LM3900MX Quad General-Purpose Op-Amp, 20 V/µs Slew Rate

MPNLM3900MX
End of Life

Texas Instruments LM3900MX, quad general-purpose operational amplifier, 2.5 MHz gain bandwidth, 20 V/µs slew rate, 4.4 V to 32 V supply, 14-SOIC surface mount, 0°C to 70°C.

$0.34Ref. price · indicative, final on quote
Packaging14-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

LM3900MX Technical Specifications
ParameterValue
Mounting typeSurface Mount
Amplifier typeGeneral Purpose
Voltage - supply span4.4 V
Current - supply6.2mA (x4 Channels)
Current - input bias300 nA
Current - output (Channel)10 mA
Operating temperature0°C ~ 70°C
Gain bandwidth product2.5 MHz
PackageBulk
Slew rate20V/µs
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits4

Product details

Package and mounting

The 20 V/µs slew rate is the headline dynamic spec. For a 10 V peak-to-peak output swing, this supports a full-power bandwidth of roughly 320 kHz before slew-rate limiting distorts the signal. That is enough for audio-frequency processing, motor-current sense amplifiers, and moderate-speed data acquisition front-ends. The 2.5 MHz gain-bandwidth product sets the small-signal bandwidth; above that frequency the open-loop gain drops below unity. For a non-inverting gain of 10, expect a closed-loop bandwidth around 250 kHz.

The 4.4 V to 32 V supply span covers the common 5 V, 12 V, and 24 V industrial rails without needing an extra regulator. The input bias current is 300 nA, typical for a bipolar-input amplifier — not a precision CMOS part, but acceptable for many general-purpose signal chains.

For dual-sourcing or a drop-in alternative with a wider temperature range, the TLV9362IDDFR (dual, -40°C to 125°C) or TLV9351IDCKR (single, same temperature grade) are parametric cousins but not pin-compatible — the LM3900MX is a quad in 14-SOIC, while those are single and dual in smaller packages.

Frequently asked questions

What are the alternatives to LM3900MX?

For a wider temperature range, the TLV9362IDDFR (dual, -40°C to 125°C) or TLV9351IDCKR (single, same temperature grade) are parametric alternatives with similar slew rate and gain bandwidth, but they are not pin-compatible — the LM3900MX is a quad in 14-SOIC.