Integrated Circuits (ICs)

AD7945ARSZ-B

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+3.3 V/+5 V MULTIPLYING 12-BIT DAC WITH A PARALLEL INTERFACE

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Search across all available documentation for this part.

DocumentsAN-137: A Digitally Programmable Gain and Attenuation Amplifier Design AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 +2

Integrated Circuits (ICs)

AD7945ARSZ-B

Active

Analog Devices

+3.3 V/+5 V MULTIPLYING 12-BIT DAC WITH A PARALLEL INTERFACE

Deep-Dive with AI

DocumentsAN-137: A Digitally Programmable Gain and Attenuation Amplifier Design AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 +2

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	AD7945ARSZ-B

Architecture	R-2R
Data Interface	Parallel
Differential Output	False
INL/DNL (LSB)	±0.9 (Max), ±1 (Max)
Mounting Type	Surface Mount
Number of Bits	12 bits
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Current - Unbuffered
Package / Case	20-SSOP
Reference Type	External
Settling Time	5 µs
Supplier Device Package	20-SSOP
Voltage - Supply, Analog [Max]	5.5 V
Voltage - Supply, Analog [Min]	3 V
Voltage - Supply, Digital [Max]	5.5 V
Voltage - Supply, Digital [Min]	3 V

AD7945 Series

Part	Mounting Type	Supplier Device Package	Voltage - Supply, Analog	Settling Time	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Reference Type	Number of Bits	Output Type	Data Interface	Voltage - Supply, Digital	Architecture	INL/DNL (LSB)	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Package / Case	Package / Case
Analog Devices AD7945BRS	Surface Mount	20-SSOP	5 V	600 µs	85 °C	-40 °C	20-SSOP	External	12 bits	Current - Unbuffered	Parallel	5 V	R-2R	±0.5
Analog Devices AD7945ARS-BREEL	Surface Mount	20-SSOP		5 µs	85 °C	-40 °C	20-SSOP	External	12 bits	Current - Unbuffered	Parallel		R-2R	±0.9 (Max) ±1 (Max)	3 V	5.5 V	3 V	5.5 V
Analog Devices AD7945BRSZ-REEL	Surface Mount	20-SSOP	5 V	600 µs	85 °C	-40 °C	20-SSOP	External	12 bits	Current - Unbuffered	Parallel	5 V	R-2R	±0.5
Analog Devices AD7945BN	Through Hole	20-PDIP	5 V	600 µs	85 °C	-40 °C	20-DIP	External	12 bits	Current - Unbuffered	Parallel	5 V	R-2R	±0.5					7.62 mm	0.3 in
Analog Devices AD7945TQ	Through Hole	20-CERDIP					20-CDIP
Analog Devices AD7945ARSZ-B	Surface Mount	20-SSOP		5 µs	85 °C	-40 °C	20-SSOP	External	12 bits	Current - Unbuffered	Parallel		R-2R	±0.9 (Max) ±1 (Max)	3 V	5.5 V	3 V	5.5 V
Analog Devices AD7945BNZ	Through Hole	20-PDIP	5 V	600 µs	85 °C	-40 °C	20-DIP	External	12 bits	Current - Unbuffered	Parallel	5 V	R-2R	±0.5					7.62 mm	0.3 in
Analog Devices AD7945BRSZ	Surface Mount	20-SSOP	5 V	600 µs	85 °C	-40 °C	20-SSOP	External	12 bits	Current - Unbuffered	Parallel	5 V	R-2R	±0.5

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	$ 19.41
		10	$ 14.08
		25	$ 12.71
		100	$ 11.18
		250	$ 10.44
		500	$ 10.07

Description

General part information

AD7945 Series

TheAD7943, AD7945 andAD7948are fast 12-bit multiplying DACs that operate from a single +5 V supply (Normal Mode) and a single +3.3 V to +5 V supply (Biased Mode). The AD7943 has a serial interface, the AD7945 has a 12-bit parallel interface, and the AD7948 has an 8-bit byte interface. They will replace the industry-standard AD7543, AD7545 and AD7548 in many applications, and they offer superior speed and power consumption performance.The AD7943 is available in 16-pin DIP, 16-pin SOP (Small Outline Package) and 20-pin SSOP (Shrink Small Outline Package).The AD7945 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.The AD7948 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.

Documents

Technical documentation and resources

AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design

Application Note

AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1

Application Note

Package Drawing - 20-Lead SSOP

Package Drawing

AD7943/AD7945/AD7948: +3.3 V/+5 V Multiplying 12-Bit DACs Data Sheet (Rev.B)

Data Sheet