AD7894ARZ-10 from Analog Devices, 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	REF IN	input	Voltage reference input, buffered on-chip, to which an external reference of nominal +2.5 V must be connected for correct conversion.
2	VIN	power_in	Analog input channel whose range is ±10 V for the AD7894-10.
3	GND	power_in	Analog ground serving as the ground reference for the track/hold, comparator, digital circuitry and DAC.
4	SCLK	input	External serial clock input that clocks out new data bits on its falling edge, with data valid for 10 ns after that edge, and which should be held low at the end of serial transmission.
5	SDATA	tri_state	Serial data output providing two leading zeroes followed by 14 bits of two's complement conversion data for the AD7894-10, clocked out on SCLK falling edges and three-stated after the 16th falling edge.
6	BUSY	output	Conversion status output that goes high on the falling edge of CONVST and returns low when the conversion is complete.
7	CONVST	input	Edge-triggered conversion start input whose falling edge puts the track/hold into hold and starts conversion, and which powers the part down if low at end of conversion.
8	VDD	power_in	Positive supply voltage of +5 V ±5%.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	SOIC-8
Category	ADC/DAC/Data Conversion
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
Signal to (Noise + Distortion) Ratio @ +25°C		78			dB	fIN = 70 kHz Sine Wave, fSAMPLE = 160 kHz	2
Signal to (Noise + Distortion) Ratio, TMIN to TMAX		77			dB	TMIN to TMAX; See Figure 14	2
Total Harmonic Distortion (THD)				-86	dB	fIN = 10 kHz Sine Wave, fSAMPLE = 160 kHz; Typically -87 dB. See Figure 15	2
Relative Accuracy		-2		2	LSB		2
Differential Nonlinearity		-1		1.5	LSB		2
Positive Gain Error		-8		8	LSB	AD7894-10, AD7894-3 only	2
Negative Gain Error		-8		8	LSB	AD7894-10, AD7894-3 only	2
Bipolar Zero Error		-10		10	LSB	AD7894-10, AD7894-3 only	2
Analog Input Voltage Range (AD7894-10)		-10		10	V	AD7894-10	2
Analog Input Current (AD7894-10)				2	mA	See Analog Input Section	2
REF IN Input Voltage Range		2.375		2.625	V	2.5 V ± 5%	2
REF IN Input Current				1	µA		2
REF IN Input Capacitance				10	pF	Sample tested @ +25°C	2
Input High Voltage	VINH	2.4			V	VDD = 5 V ± 5%	2
Input Low Voltage	VINL			0.8	V	VDD = 5 V ± 5%	2
Input Current	IIN	-10		10	µA	VIN = 0 V to VDD	2
Input Capacitance	CIN			10	pF	Sample tested @ +25°C	2
Output High Voltage	VOH	4			V	ISOURCE = 400 µA	2
Output Low Voltage	VOL			0.4	V	ISINK = 1.6 mA	2
Conversion Time, Mode 1				5	µs	Mode 1 Operation	2
Conversion Time, Mode 2				10	µs	Mode 2 Operation; includes wake-up time from standby	2
Track/Hold Acquisition Time				0.35	µs		2
Supply Current	IDD			5.5	mA	Digital inputs @ VDD, VDD = 5 V ± 5%	3
Power Dissipation			20	27.5	mW	Typically 20 mW	3
Power-Down Mode Supply Current	IDD			20	µA	TMIN to TMAX; Digital inputs @ GND, VDD = 5 V ± 5%	3
Power-Down Mode Power Dissipation			15	100	µW	TMIN to TMAX; Typ 15 µW	3
CONVST Pulsewidth	t1	40			ns	CONVST Pulsewidth	3
SCLK High Pulsewidth	t2	31.252			ns	SCLK High Pulsewidth	3
SCLK Low Pulsewidth	t3	31.252			ns	SCLK Low Pulsewidth	3
Data Access Time after Falling Edge of SCLK	t4			603	ns	Data Access Time after Falling Edge of SCLK; VDD = 5 V ± 5%	3
Data Hold Time after Falling Edge of SCLK	t5	10			ns	Data Hold Time after Falling Edge of SCLK	3
Bus Relinquish Time after Falling Edge of SCLK	t6			204	ns	Bus Relinquish Time after Falling Edge of SCLK	3
VDD to GND	VDD	-0.3		7	V		3
Analog Input Voltage to GND (AD7894-10)		-17		17	V	AD7894-10	3
Reference Input Voltage to GND (printed max VDD + 0.3 V)		-0.3			V		3
Digital Input Voltage to GND (printed max VDD + 0.3 V)		-0.3			V		3
Digital Output Voltage to GND (printed max VDD + 0.3 V)		-0.3			V		3
Operating Temperature Range (Commercial, A, B Versions)		-40		85	°C	Commercial (A, B Versions)	3
Storage Temperature Range		-65		150	°C		3
Junction Temperature				150	°C		3
SOIC Package Power Dissipation				450	mW	SOIC package	3
θJA Thermal Impedance	θJA		170		°C/W		3
Lead Temperature, Soldering, Vapor Phase				215	°C	60 sec	3
Lead Temperature, Soldering, Infrared				220	°C	15 sec	3
Supply Voltage (VDD nominal)	VDD		5		V	nom ±5% for Specified Performance	3

CAD (KiCad official)

Symbol: AD7894ARZ-10
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: ad7894arz-10-etched.step / ad7894arz-10-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad7894arz-10.step / ad7894arz-10.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices datasheet (12 pp, sha256 78b80c261686698b, 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

AD7894ARZ-10

Verified AD7894ARZ-10

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README