Hot-selling and scarce AD5322BRMZ Dual Rail-to-Rail Voltage Output 8-/10-/12-Bit DACs MSOP10 spot stock

Product Descriptions

The AD5302/AD5312/AD5322 are dual 8-, 10-, and 12-bitbuffered voltage output DACs in a 10-lead MSOP that operatefrom a single 2.5 V to 5.5 V supply, consuming 230 μA at 3 V.Their on-chip output amplifiers allow the outputs to swing railto-rail with a slew rate of 0.7 V/μs .The AD5302/AD5312/AD5322utilize a versatile 3-wire serial interface that operates at clockrates up to 30 MHz and is compatible with standard SPI®,QSPI™, MICROWIRE™, and DSP interface standards .

The references for the two DACs are derived from two referencepins (one per DAC). The reference inputs can be configured asbuffered or unbuffered inputs . The outputs of both DACs can beupdated simultaneously using the asynchronous LDAC input .The parts incorporate a power-on reset circuit,which ensuresthat the DAC outputs power-up to 0 V and remain there until avalid write takes place to the device. The parts contain a powerdown feature that reduces the current consumption of thedevices to 200 nA at 5 V (50 nA at 3 V) and provides softwareselectable output loads while in power-down mode .

The low power consumption of these parts in normal operationmakes them ideally suited for portable battery-operatedequipment. The power consumption is 1.5 mW at 5 V, 0.7 mWat 3 V, reducing to 1 μW in power-down mode .

Product Features

Micropower operation: 300 μA @ 5 V (including

reference current)

Power-down to 200 nA @ 5 V, 50 nA @ 3 V

2.5 V to 5.5 V power supply

Double-buffered input logic

Guaranteed monotonic by design over all codes

Buffered/Unbuffered reference input options

0 V to VREF output voltage

Power-on-reset to 0 V

Simultaneous update of DAC outputs via LDAC

Low power serial interface with Schmitt-triggered inputs

On-chip rail-to-rail output buffer amplifiers

Qualified for automotive applications

Product Applications

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage and current sources

Programmable attenuators

Product Specification

Product Photos

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