Specification	AD7856KRZ

Architecture	SAR
Configuration	MUX-S/H-ADC
Data Interface	SPI
Input Type	Single Ended, Pseudo-Differential
Mounting Type	Surface Mount
Number of A/D Converters	1
Number of Bits	14
Number of Inputs	8, 4
Operating Temperature [Max]	105 ░C
Operating Temperature [Min]	0 °C
Package / Case	24-SOIC
Package / Case [custom]	7.5 mm
Package / Case [custom]	0.295 in
Ratio - S/H:ADC	1:1
Reference Type	External, Internal
Sampling Rate (Per Second)	285k
Supplier Device Package	24-SOIC
Voltage - Supply, Analog	5 V
Voltage - Supply, Digital	5 V

AD7856 Series

Part	Ratio - S/H:ADC	Number of Inputs	Number of Bits	Package / Case [custom]	Package / Case	Package / Case [custom]	Input Type	Number of A/D Converters	Architecture	Data Interface	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Configuration	Reference Type	Mounting Type	Sampling Rate (Per Second)	Voltage - Supply, Digital	Voltage - Supply, Analog	Package / Case	Package / Case
Analog Devices AD7856KRZ	1:1	4 8	14	7.5 mm	24-SOIC	0.295 in	Pseudo-Differential Single Ended	1	SAR	SPI	105 ░C	0 °C	24-SOIC	MUX-S/H-ADC	External Internal	Surface Mount	285k	5 V	5 V
Analog Devices AD7856ANZ	1:1	4 8	14		24-DIP		Pseudo-Differential Single Ended	1	SAR	SPI	105 ░C	-40 °C	24-PDIP	MUX-S/H-ADC	External Internal	Through Hole	285k	5 V	5 V	0.3 in	7.62 mm
Analog Devices AD7856AN			14		24-DIP			2			105 ░C	-40 °C	24-PDIP			Through Hole	285k			0.3 in	7.62 mm
Analog Devices AD7856ARSZ-REEL7	1:1	4 8	14		24-SSOP		Pseudo-Differential Single Ended	1	SAR	SPI	105 ░C	-40 °C	24-SSOP	MUX-S/H-ADC	External Internal	Surface Mount	285k	5 V	5 V
Analog Devices AD7856KR-REEL7			14	7.5 mm	24-SOIC	0.295 in		2			105 ░C	0 °C	24-SOIC			Surface Mount	285k
Analog Devices AD7856ARZ	1:1	4 8	14	7.5 mm	24-SOIC	0.295 in	Pseudo-Differential Single Ended	1	SAR	SPI	105 ░C	-40 °C	24-SOIC	MUX-S/H-ADC	External Internal	Surface Mount	285k	5 V	5 V
Analog Devices AD7856ARZ-REEL7	1:1	4 8	14	7.5 mm	24-SOIC	0.295 in	Pseudo-Differential Single Ended	1	SAR	SPI	105 ░C	-40 °C	24-SOIC	MUX-S/H-ADC	External Internal	Surface Mount	285k	5 V	5 V
Analog Devices AD7856AR	1:1	4 8	14	7.5 mm	24-SOIC	0.295 in	Pseudo-Differential Single Ended	1	SAR	SPI	105 ░C	-40 °C	24-SOIC	MUX-S/H-ADC	External Internal	Surface Mount	285k	5 V	5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 42.28
		10	$ 32.27
		25	$ 29.70
		100	$ 26.85
		250	$ 26.52

Description

General part information

AD7856 Series

The AD7856 is a high speed, low power, 14-bit Analog-to-Digital Converter (ADC) that operates from a single 5 V power supply. The ADC powers up with a set of default conditions at which time it can be operated as a read only ADC. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature; and it has a number of power-down options for low power applications.The AD7856 is capable of 285 kHz throughput rate. The input track-and-hold acquires a signal in 500 ns and features a pseudo-differential sampling scheme. The AD7856 voltage range is 0 to VREFwith both straight binary and 2s complement output coding. Input signal range is to the supply and the part is capable of converting full power signals to 20 MHz.CMOS construction ensures low power dissipation of typically 5.4 mW for normal operation and 3.6 µW in power-down mode. The part is available in 24-pin, 0.3 inch-wide dual-in-line package (DIP), 24-lead small outline (SOIC) and 24-lead small shrink outline (SSOP) packages.