AD5382 32-Channel 14-Bit 3 V/5 V Single-Supply Voltage-Output DAC

Variable optical attenuators (VOAs) Level setting (ATE) Optical micro-electro-mechanical systems (MEMS) Control systems Instrumentation

The AD5382 is a 32-channel, 14-Bit DAC and is available in a 14 mm x 14 mm 100-lead LQFP package. It operates from a single 3 V or 5 V supply. Programmable gain (m) and offset (c) are provided per channel to facilitate system calibration. Each DAC channel is double-buffered which allows all DAC outputs to be updated simultaneously via an LDAC pin. Each channel has an on-chip output amplifier which allows rail-to-rail operation. The AD5382 includes an internal 1.25 V/2.5 V low-drift reference. The AD5382 contains a parallel interface with a WR pulsewidth of 20 ns, a 30 MHz SPI interface and a 400 kHz I2C-compatible interface.

This device is pin-to-pin compatible with the AD5380 (40-ch 14-bit DAC), the AD5381 (40-ch 12-bit DAC) and the AD5383 (32-ch 12-bit DAC).

Applications

Features and Benefits

Guaranteed Monotonic To 14-Bits
High Accuracy (INL = ±4 LSB)
User Programmable Offset And Gain For System Calibration
On-Chip 1.25 V/2.5 V Reference With 10 ppm/ºC TempCo
On-Chip Output Amplifier With Rail-To-Rail Operation

Optional Boost Mode For Faster Slew Rate (8 µs typ.)
Serial SPI, I2C and Parallel Interfaces
Simultaneous Update Of DAC Outputs Via Pin
Clear Function To User-Programmable Code
Low Power (300 µA/channel)

Digital to Analog Converters

D/A Converters

Data Sheets

Document	note
AD5382: 32-Channel, 3 V/5 V, Single-Supply, 14-Bit denseDAC Data Sheet (Rev. D)	PDF 1172 kB

Application Notes

Document	note
AN-1226: AD5382 Channel Monitor Function (Rev. B)	PDF 134 kB
AN-1225: 32 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using the AD5382 DAC (Rev. B)	PDF 77 kB