CA5420AMZ from RENESAS, 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	OFFSET NULL	passive	Input offset voltage null terminal, used with an external potentiometer in applications requiring offset nulling.
2	INV. INPUT	input	Inverting input of the PMOS-input op amp with input current typically 1pA and common-mode range down to 0.45V below V-.
3	NON-INV. INPUT	input	Non-inverting input of the PMOS-input op amp with input current typically 1pA and common-mode range down to 0.45V below V-.
4	V-	power_in	Negative supply terminal (GND in single-supply use); total supply between V+ and V- is 2V to 20V, 22V absolute maximum.
5	OFFSET NULL	passive	Second input offset voltage null terminal, used with an external potentiometer in applications requiring offset nulling.
6	OUTPUT	output	Rail-to-rail output that can drive ±2mA into a 1kΩ load, with short-circuit to either supply allowed indefinitely.
7	V+	power_in	Positive supply terminal; total supply between V+ and V- is 2V to 20V, 22V absolute maximum.
8	STROBE	input	Strobe terminal providing access for supplementary external capacitor or output strobing; typical current 20µA to V- and 2mA to V+.

Key specifications

Parameter	Value
Manufacturer	RENESAS
Package	SOIC-8
Category	Interface ICs
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
Supply Voltage (V+ to V-)				22	V		3
Differential Input Voltage				15	V		3
Input Current				1	mA		3
Temperature Range		-55		125	°C		3
Maximum Junction Temperature (Plastic Package)				150	°C		3
Maximum Storage Temperature Range (All Types)		-65		150	°C		3
Thermal Resistance SOIC Package	θJA		157		°C/W	Typical; θJA measured with component mounted on evaluation PC board in free air	3
Input Offset Voltage	VIO		1	5	mV	VO = 2.5V	3
Input Offset Current	IIO		0.02	4	pA	VO = 2.5V	3
Input Current	II		0.02	5	pA	VO = 2.5V	3
Common Mode Rejection Ratio	CMRR	75	83		dB	VCM = 0 to 3.7V, VO = 2.5V	3
Common Mode Input Voltage Range (high)	VlCR+	3.7	4		V	VO = 2.5V	3
Common Mode Input Voltage Range (low)	VlCR-		-0.3	0	V		3
Power Supply Rejection Ratio	PSRR	75	83		dB	ΔV+ = 1V; ΔV- = 1V	3
Large Signal Voltage Gain	AOL	85	87		dB	VO = 0.5 to 4V, RL = ∞	3
Large Signal Voltage Gain	AOL	80	85		dB	VO = 0.7 to 3V, RL = 2kΩ	3
Source Current	ISOURCE	1.2	2.7		mA	VO = 0V	3
Sink Current	ISINK	1.2	2.1		mA	VO = 5V	3
Output Voltage high	VOM+	4.85	4.94		V	RL = ∞	4
Output Voltage high	VOM+	4.7	4.9		V	RL = 10kΩ	4
Output Voltage high	VOM+	3.5	4.6		V	RL = 2kΩ	4
Output Voltage low	VOM-		0.13	0.15	V		4
Output Voltage low	VOM-		0.12	0.15	V		4
Output Voltage low	VOM-		0.1	0.15	V		4
Supply Current	ISUPPLY		400	500	µA	VO = 0V	4
Supply Current	ISUPPLY		430	550	µA	VO = 2.5V	4
Input Offset Voltage	VIO		2	10	mV	VO = 2.5V, TA = -55°C to +125°C	4
Input Offset Current	IIO		1.5	3	nA	VO = 2.5V, TA = -55°C to +125°C	4
Input Offset Current	IIO		2	10	pA	Up to TA = +85°C	4
Input Current	/II/		2	5	nA	VO = 2.5V, TA = -55°C to +125°C	4
Input Current	/II/		10	15	pA	Up to TA = +85°C	4
Common Mode Rejection Ratio	CMRR	70	80		dB	VCM = 0 to 3.7V, VO = 2.5V, TA = -55°C to +125°C	4
Common Mode Input Voltage Range (high)	VlCR+	3.7	4		V	VO = 2.5V, TA = -55°C to +125°C	4
Common Mode Input Voltage Range (low)	VlCR-		-0.3	0	V	TA = -55°C to +125°C	4
Power Supply Rejection Ratio	PSRR	70	83		dB	ΔV+ = 1V; ΔV- = 1V, TA = -55°C to +125°C	4
Large Signal Voltage Gain	AOL	65	75		dB	VO = 0.5 to 4V, RL = ∞, TA = -55°C to +125°C	4
Large Signal Voltage Gain	AOL	80	87		dB	VO = 0.7 to 4V, RL = 10kΩ, TA = -55°C to +125°C	4
Large Signal Voltage Gain	AOL	75	80		dB	VO = 0.7 to 2.5V, RL = 2kΩ, TA = -55°C to +125°C	4
Source Current	ISOURCE	1	2.7		mA	VO = 0V, TA = -55°C to +125°C	4
Sink Current	ISINK	1	2.1		mA	VO = 5V, TA = -55°C to +125°C	4
Output Voltage high	VOM+	4.8	4.9		V	RL = ∞, TA = -55°C to +125°C	4
Output Voltage low	VOM-		0.16	0.2	V	TA = -55°C to +125°C	4
Output Voltage low	VOM-		0.15	0.2	V	TA = -55°C to +125°C	4
Output Voltage low	VOM-		0.14	0.2	V	RL = 2kΩ, TA = -55°C to +125°C	4
Supply Current	ISUPPLY		480	600	µA	VO = 2.5V, TA = -55°C to +125°C	4
Input Offset Voltage	VIO		2	5	mV	VSUPPLY = ±1V, TA = +25°C	5
Input Offset Current	/IIO/		0.01	4	pA	VSUPPLY = ±1V, TA = +25°C	5
Input Current	/II/		0.02	5	pA	VSUPPLY = ±1V, TA = +25°C	5
Large Signal Voltage Gain	AOL	10	100		kV/V	RL = 10kΩ, VSUPPLY = ±1V, TA = +25°C	5
Large Signal Voltage Gain	AOL	80	100		dB		5
Common Mode Rejection Ratio	CMRR	60	65		dB		5
Common Mode Input Voltage Range (high)	VlCR+	0.2	0.5		V	VSUPPLY = ±1V, TA = +25°C	5
Common Mode Input Voltage Range (low)	VlCR-	-1	-1.3		V	VSUPPLY = ±1V, TA = +25°C	5
Power Supply Rejection Ratio	PSRR	70	90		dB		5
Maximum Output Voltage high	VOM+	0.9	0.95		V	RL = ∞, VSUPPLY = ±1V, TA = +25°C	5
Maximum Output Voltage low	VOM-	-0.85	-0.91		V	VSUPPLY = ±1V, TA = +25°C	5
Supply Current	ISUPPLY		350	650	µA	VSUPPLY = ±1V, TA = +25°C	5

CAD (KiCad official)

Symbol: CA5420AMZ
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: ca5420amz-etched.step / ca5420amz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ca5420amz.step / ca5420amz.glb are the bare package body.

Provenance

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

Datasheet: RENESAS datasheet (8 pp, sha256 e65c30548a33c58e, retrieved 2026-11-07, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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

CA5420AMZ

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3D Model

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