32-Channel 14-Bit Bipolar Voltage-Output DAC

The AD5532 is a 32-channel, 14-bit voltage-output DAC with an additional infinite sample-and-hold mode. The selected DAC register is written to via the 3-wire serial interface; VOUT for this DAC is then updated to reflect the new contents of the DAC register. DAC selection is accomplished via Address Bits A0–A4. The output voltage range is determined by the offset voltage at the OFFSIN pin and the gain of the output amplifier. It is restricted to a range from VSS + 2 V to VDD – 2 V because of the headroom of the output amplifier.

The device is operated with AVCC = 5 V ± 5%; DVCC = 2.7 V to 5.25 V; VSS = −4.75 V to −16.5 V; and VDD = 8 V to 16.5 V. The AD5532 requires a stable 3 V reference on REFIN as well as an offset voltage on OFFSIN.

PRODUCT HIGHLIGHTS

* 32-channel, 14-bit DAC in one package, guaranteed monotonic.

* Available in a 74-lead CSPBGA package with a body size of 12 mm ×12 mm.

* Droopless/infinite sample-and-hold mode.

APPLICATIONS

* Automatic test equipment

* Optical networks

* Level setting

* Instrumentation

* Industrial control systems

* Data acquisition

* Low cost I/O

* High integration: 32-channel DAC in 12 mm × 12 mm CSPBGA

* Adjustable voltage output range

* Guaranteed monotonic

* Output impedance:

0.5 Ω (AD5532-1, AD5532-2)

500 Ω (AD5532-3)

1 kΩ (AD5532-5)