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Texas Instruments TS321IDR — Logic ICs

TS321IDR General Purpose Op-Amp, 800 kHz GBW, 8-SOIC

MPNTS321IDR
End of Life

Texas Instruments TS321IDR, General Purpose Op-Amp, 1 Circuit, 800 kHz Gain Bandwidth, 0.4 V/µs Slew Rate, 3 V to 30 V Supply, 8-SOIC, -40°C to 125°C.

$0.97Ref. price · indicative, final on quote
Packaging8-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

TS321IDR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset500 µV
Voltage - supply span30 V
Current - supply600µA
Current - input bias20 nA
Current - output (Channel)40 mA
Operating temperature-40°C ~ 125°C
Gain bandwidth product800 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.4V/µs
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits1

Product details

800 kHz GBW — what it buys the signal chain

Its 800 kHz gain-bandwidth product and 0.4 V/µs slew rate place it firmly in the low-to-moderate speed signal-conditioning tier — think sensor buffering, active filters below 100 kHz, and DC offset correction loops where you don't need the bandwidth of a 3.5 MHz part like the TLV9351IDCKR. The 600 µA supply current keeps the power budget lean for multi-channel or battery-powered boards. Supply range spans 3 V to 30 V single or dual supply, so it runs directly off a 5 V logic rail, a 12 V industrial bus, or a 24 V field supply without needing an extra regulator. Input bias current is 20 nA, input offset voltage 500 µV — adequate for non-critical DC accuracy in temperature monitoring, current sensing, or comparator duty.

Temperature grade and deployment context

The 40 mA output per channel can drive moderate loads like a logic input or a small relay coil directly. No rail-to-rail output — the output swing is limited by the supply rails, so budget headroom if you need to hit the full 3.3 V ADC input range from a 3.3 V supply.

Lifecycle and sourcing posture

The 8-SOIC footprint is common across many general-purpose op-amps, making it straightforward to dual-source if needed.

Frequently asked questions

What is the TS321IDR equivalent or replacement?

A functionally similar general-purpose op-amp is the TLV9351IDCKR, which offers a 3.5 MHz GBW and rail-to-rail output in a similar footprint, but with a 4.5 V minimum supply. The TS321IDR's wider 3 V to 30 V supply range is the deciding factor for designs running on 5 V or 24 V rails.