
Analog Devices
GENERAL DESCRIPTION
The AD5302/AD5312/AD5322 are dual 8-, 10-, and 12-bit buffered voltage output DACs in a 10-lead MSOP that operate from 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 rail to-rail with a slew rate of 0.7 V/μs. The AD5302/AD5312/AD5322 utilize a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards.
FEATURES
AD5302: Two 8-bit buffered DACs in 1 package
A version: ±1 LSB INL, B version: ±0.5 LSB INL
AD5312: Two 10-bit buffered DACs in 1 package
A version: ±4 LSB INL, B version: ±2 LSB INL
AD5322: Two 12-bit buffered DACs in 1 package
A version: ±16 LSB INL, B version: ±8 LSB INL
10-lead MSOP
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
APPLICATIONS
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators