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AD5405

Analog Devices
Part Number AD5405
Manufacturer Analog Devices
Description Multiplying DAC
Published Mar 23, 2005
Detailed Description Dual 12-Bit, High Bandwidth, Multiplying DAC with 4-Quadrant Resistors and Parallel Interface AD5405 FEATURES On chip 4...
Datasheet PDF File AD5405 PDF File

AD5405
AD5405


Overview
Dual 12-Bit, High Bandwidth, Multiplying DAC with 4-Quadrant Resistors and Parallel Interface AD5405 FEATURES On chip 4-quadrant resistors allow flexible output ranges 10 MHz multiplying bandwidth Fast parallel interface write cycle: 58 MSPS 2.
5 V to 5.
5 V supply operation ±10 V reference input Extended temperature range: −40°C to 125°C 40-lead LFCSP package Guaranteed monotonic 4-quadrant multiplication Power-on reset Readback function .
5 µA typical current consumption GENERAL DESCRIPTION The AD54051 is a dual CMOS, 12-bit, current output digitalto-analog converter (DAC).
This device operates from a 2.
5 V to 5.
5 V power supply, making it suited to battery-powered and other applications.
The applied external reference input voltage (VREF) determines the full-scale output current.
An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external I-to-V precision amplifier.
This device also contains all the 4-quadrant resistors necessary for bipolar operation and other configuration modes.
This DAC utilizes data readback, allowing the user to read the contents of the DAC register via the DB pins.
On power-up, the internal register and latches are filled with zeros and the DAC outputs are at zero scale.
As a result of manufacture with a CMOS submicron process, the device offers excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidths of up to 10 MHz.
The AD5405 has a 6 mm × 6 mm, 40-lead LFCSP package.
APPLICATIONS Portable battery-powered applications Waveform generators Analog processing Instrumentation applications Programmable amplifiers and attenuators Digitally-controlled calibration Programmable filters and oscillators Composite video Ultrasound Gain, offset, and voltage trimming R3A R3 2R R2_3A R2 2R R2A 1 US Patent Number 5,689,257.
VREF A R1A AD5405 VDD DATA INPUTS DB0 DB11 INPUT BUFFER R1 2R RFB 2R RFBA LATCH 12-BIT R-2R DAC A IOUT1A IOUT2A DAC A/B...


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