AD7302BR

$3.69

Description：IC DAC 8BIT V-OUT 20SOIC
Series：-

SKU:a4e34d957b89 Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC 8BIT V-OUT 20SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tube,Tube
Number of Bits：8
Number of D/A Converters：2
Settling Time：2µs
Output Type：Voltage - Buffered
Differential Output：No
Data Interface：Parallel
Reference Type：External
Voltage - Supply, Analog：2.7V ~ 5.5V
Voltage - Supply, Digital：2.7V ~ 5.5V
INL/DNL (LSB)：±1 (Max), ±1 (Max)
Architecture：Current Source
Operating Temperature：-40°C ~ 105°C
Package / Case：20-SOIC (0.295", 7.50mm Width)
Supplier Device Package：20-SOIC
Mounting Type：Surface Mount

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AD7302BR

Overview

The AD7302BR is a dual, 8-bit voltage-output digital-to-analog converter (DAC) operating from a single +2.7 V to +5.5 V supply. It features on-chip precision output buffers that allow rail-to-rail output swing with a typical settling time of 1.2 μs. The device utilizes a parallel microprocessor and DSP-compatible interface with double-buffered logic for simultaneous or individual DAC updates. Reference selection supports either an internal VDD/2 source or an external reference applied to the REFIN pin. The B version operates within a temperature range of –40 °C to +105 °C and is housed in a 20-lead SOIC package.

Feature Summary

Dual 8-bit DACs with rail-to-rail voltage output capability
Parallel interface with double-buffered input and DAC registers
Internal or external reference input (REFIN pin)
Power-down mode reduces current consumption to <1 μA max at 25°C

Applications

Portable battery-powered instruments
Digital gain and offset adjustment circuits
Programmable voltage and current sources
Programmable attenuators

Procurement Notes

Verify the specific ordering suffix against the manufacturer's guide to confirm the package type. The 'B' designation indicates the commercial temperature range of –40 °C to +105 °C. Ensure the required package variant (SOIC, DIP, or TSSOP) matches the design constraints, as the base model number covers multiple physical packages.

Selection Notes

Select this component when a dual-channel, low-power 8-bit DAC is required for single-supply applications. The internal reference simplifies design by tying REFIN to VDD, while external references allow for higher precision if needed. Verify that the parallel interface timing requirements align with the host microprocessor or DSP system.

Part Context

The AD7302 belongs to Analog Devices' family of low-power, single-supply DACs. The AD7302BR specifically denotes the 20-lead Small Outline Integrated Circuit (SOIC) package variant within the B temperature grade. Other variants include the AD7302BN (DIP) and AD7302BRU (TSSOP).