OPA843IDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	NC	unconnected	No connection on the SO-8 package (NC = No Connection).
2	Inverting Input	input	Inverting input of the op amp; differential input voltage is limited to ±1.2V absolute maximum.
3	Noninverting Input	input	Noninverting input of the op amp; input voltage range is limited to ±VS.
4	-VS	power_in	Negative power supply; specified operating voltage is ±5V with a maximum operating voltage of ±6V.
5	NC	unconnected	No connection on the SO-8 package (NC = No Connection).
6	Output	output	Amplifier output; output current is specified at ±100mA minimum at VO = 0V.
7	+VS	power_in	Positive power supply; specified operating voltage is ±5V with a maximum operating voltage of ±6V.
8	NC	unconnected	No connection on the SO-8 package (NC = No Connection).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Operational Amplifier/Comparator
Pins	8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Small-Signal Bandwidth G=+5		175	260		MHz	G = +5, VO = 200mVPP	3
Small-Signal Bandwidth G=+10		64	85		MHz	G = +10, VO = 200mVPP	3
Small-Signal Bandwidth G=+20		30	40		MHz	G = +20, VO = 200mVPP	3
Gain-Bandwidth Product		558	800		MHz		3
Bandwidth for 0.1dB Gain Flatness		32	65		MHz	G = +5, RL = 100Ω, VO = 200mVPP	3
2nd-Harmonic Distortion RL=100Ω			-76	-70	dBc	G = +5, f = 5MHz, VO = 2VPP, RL = 100Ω	3
2nd-Harmonic Distortion RL=500Ω			-96	-90	dBc	G = +5, f = 5MHz, VO = 2VPP, RL = 500Ω	3
3rd-Harmonic Distortion RL=100Ω			-102	-95	dBc	G = +5, f = 5MHz, VO = 2VPP, RL = 100Ω	3
3rd-Harmonic Distortion RL=500Ω			-110	-100	dBc	G = +5, f = 5MHz, VO = 2VPP, RL = 500Ω	3
Input Voltage Noise			2	2.36	nV/√Hz	f > 1MHz	3
Input Current Noise			2.8	3.45	pA/√Hz	f > 1MHz	3
Rise-and-Fall Time			1.2	2.1	ns	0.2V Step	3
Slew Rate		525	1000		V/µs	2V Step	3
Settling Time to 0.1%			7.5	10.6	ns	2V Step	3
Settling Time to 1.0%			3.2	6.4	ns	2V Step	3
Open-Loop Voltage Gain	AOL	92	110		dB	VO = 0V	3
Input Offset Voltage		-1.5	0.3	1.5	mV	VCM = 0V	3
Average Offset Voltage Drift		-4		4	µV/°C	VCM = 0V	3
Input Bias Current			-20	-37	µA	VCM = 0V	3
Input Bias Current Drift				25	nA/°C	VCM = 0V	3
Input Offset Current		-1.17	0.25	1.17	µA	VCM = 0V	3
Input Offset Current Drift		-2		2	nA/°C	VCM = 0V	3
Common-Mode Input Range (CMIR)		2.8	3.2		V		3
Common-Mode Rejection Ratio (CMRR)		82	95		dB	VCM = ±1V, Input Referred	3
Output Voltage Swing Positive		2.8	3.2		V	RL > 1kΩ, Positive Output	3
Output Voltage Swing Negative		-3.3	-3.7		V	RL > 1kΩ, Negative Output	3
Output Voltage Swing Positive RL=100Ω		2.6	3		V	RL = 100Ω, Positive Output	3
Output Voltage Swing Negative RL=100Ω		-3.1	-3.5		V	RL = 100Ω, Negative Output	3
Current Output		80	100		mA	VO = 0V	3
Maximum Operating Voltage				6	V		3
Minimum Operating Voltage		4			V		3
Max Quiescent Current			20.2	22.5	mA	VS = ±5V	3
Min Quiescent Current		18.3	20.2		mA	VS = ±5V	3
Power-Supply Rejection Ratio	PSRR	85	100		dB	/VS/ = 4.5V to 5.5V, Input Referred	3
Power Supply				6.5	V		2
Differential Input Voltage		-1.2		1.2	V		2
Storage Voltage Range		-65		125	°C	D, DBV	2
Lead Temperature				300	°C	soldering, 10s	2
Junction Temperature	TJ			150	°C		2
ESD Rating Human Body Model				2000	V	Human Body Model	2
ESD Rating Charge Device Model				1500	V	Charge Device Model	2
ESD Rating Machine Model				200	V	Machine Model	2
Specified Operating Range		-40		85	°C	D, DBV	3
Thermal Resistance Junction-to-Ambient D SO-8	θJA		125		°C	D SO-8	3
Small-Signal Bandwidth G=+3			500		MHz	G = +3	3
Peaking at a Gain of +3			3.5		dB		3
Differential Gain			0.001		%	G = +4, NTSC, RL = 150Ω	3
Differential Phase			0.012		deg	G = +4, NTSC, RL = 150Ω	3
2-Tone, 3rd-Order Intercept			40		dBm	G = +5, f = 25MHz	3
Settling Time to 0.01%			10.5		ns	2V Step	3
Closed-Loop Output Impedance			0.0001		Ω	G = +5, f = 1kHz	3
Specified Operating Voltage			5		V		3

CAD (KiCad official)

Symbol: OPA843IDR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: opa843idr-etched.step / opa843idr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa843idr.step / opa843idr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (32 pp, sha256 8a75f28dd19e8799, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

OPA843IDR

Verified OPA843IDR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

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Datasheet

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