The AD5545/AD5555CRU are 16-bit/14-bit, current-output, digital-to-analog converters designed to operate from a single 5 V supply with bipolar output up to ±15 V capability.
An external reference is needed to establish the full-scale output-current. An internal feedback resistor (RFB) enhances theresistance and temperature tracking when combined with an external op amp to complete the I-to-V conversion.
A serial data interface offers high speed, 3-wire microcontroller compatible inputs using serial data in (SDI), clock (CLK), andchip select (CS). Additional LDAC function allows simultaneous update operation. The internal reset logic allows power-on preset and dynamic reset at either zero or midscale, depending on the state of the MSB pin.
The AD5545/AD5555CRU are packaged in the compact TSSOP-16package and can be operated from –40°C to +85°C.
Feature
- 14-bit resolution
- ±1 LSB DNL monotonic
- ±1 LSB INL
- 2 mA full-scale current ±20%, with VREF = 10 V
- 0.5 μs settling time
- 2Q multiplying reference-input 6.9 MHz BW
- Zero or midscale power-up preset
- Zero or midscale dynamic reset
- 3-wire interface
- Compact TSSOP-16 package
Applications
- Automatic test equipment
- Instrumentation
- Digitally controlled calibration
- Industrial control PLCs
- Programmable attenuator
