High-speed op-amp with a FET input, so it combines a 140 MHz gain-bandwidth and fast slew rate with the femtoamp-class bias current of a CMOS part. That pairing suits it to transimpedance stages for photodiodes and to buffering high-impedance sensors at speed, where a bipolar high-speed amp would load the source. A rail-to-rail output and a wide 4.75 to 27 V supply give plenty of headroom. A fast, high-input-impedance workhorse for instrumentation.

Pinout

Pin	Name	Type	Function
1	NC	unconnected	No internal connection. Leave floating or tie to a quiet plane; do not connect to signal or supply nets.
2	VIN-	input	Inverting input pin of the op-amp. FET-input stage with typical 2pA input bias current; allowable differential input voltage ±7V. Common-mode input impedance ~12GΩ
3	VIN+	input	Noninverting input pin of the op-amp. Rail-to-rail FET input with 2pA typical bias current; input voltage range extends to V(S-)-0.2V and V(S+)+0.2V.
4	VS-	power_in	Negative power-supply pin. Total supply voltage V(S+)-V(S-) between 4.75V and 27V (max ±14V bipolar). Bypass with decoupling capacitors close to the pin.
5	NC	unconnected	No internal connection. Leave floating or tie to a quiet plane; do not connect to signal or supply nets.
6	VO	output	Amplifier output pin. Rail-to-rail output with 75mA typical high linear output current; short-circuit current ~100mA; drives up to 10pF capacitive load with <3dB peaking (Rs=0Ω).
7	VS+	power_in	Positive power-supply pin. Total supply voltage V(S+)-V(S-) between 4.75V and 27V (max ±14V bipolar). Quiescent current 3.7mA/channel (typ). Bypass close to pin.
8	NC	unconnected	No internal connection. Leave floating or tie to a quiet plane; do not connect to signal or supply nets.

Key specifications

Parameter	Value
Type	High-speed FET-input op-amp
Gain-bandwidth	140 MHz
Input bias current	2 pA (typ)
Slew rate	200 V/us
Supply	4.75-27 V
Output	Rail-to-rail
Package	SOIC-8

Ordering variants

Same part, different packaging or reel option.

OPA810IDBVR (SOT-23-5)
OPA810ID (SOIC-8)
OPA810IDR (SOIC-8, tape & reel)

CAD (KiCad official)

Symbol: Amplifier_Operational:OPA810xD (KiCad official)
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (52 pp, sha256 74c61ac238989c94, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF