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1. Description
AD5554BRSZ four-channel, 16-bit / 14-bit, current output, digital-to-analog converter (DAC) is designed to use 2.7 V to 5.5 V power supply range. The applied external reference input voltage (VREFx) is determined Full scale output current. Integrated feedback resistor (RFB) Provide temperature tracking, full-scale voltage output Used in conjunction with an external I-V precision amplifier. Double-buffered serial data interface can provide high-speed, 3-wire, SPI and microcontroller compatible input using serial data input (SDI), chip select (CS) and clock (CLK) signals. In addition, Serial data output pin (SDO) allows multiple connections in a daisy chain Use packages. General purpose, level-sensitive load DAC strobe pulse (LDAC) input allows all DAC outputs to be updated at the same time From the previously loaded input register. In addition, internal The power-on reset will force the output voltage to 0 when the system is turned on. The MSB pin allows the system reset bit (RS) to force all registers When MSB = 0, it is a zero code, and when MSB = 1, it is a half code. AD5544 is available in compact 28-pin SSOP and 32-pin packages LFCSP. AD5554 is available in a compact 28-pin SSOP package. EV-AD5544/45SDZ can be used to evaluate DAC performance.
2. FEATURES
1. AD5544: 16-bit resolution
- INL of ±1 LSB (B Grade)
2. AD5554: 14-bit resolution
- INL of ±0.5 LSB (B Grade)
3. 2 mA full-scale current ± 20%, with VREF = ±10 V
4. 0.9 μs settling time to ±0.1%
5. 12 MHz multiplying bandwidth
6. Midscale glitch of −1 nV-sec
7. Midscale or zero-scale reset
8. 4 separate, 4-quadrant multiplying reference inputs
9. SPI-compatible, 3-wire interface
10. Double-buffered registers enable
11. Simultaneous multichannel change
12. Internal power-on reset
13. Temperature range: −40°C to +125°C
14. Compact 28-lead SSOP and 32-lead LFCSP
3. APPLICATIONS
1. Automatic test equipment
2. Instrumentation
3. Digitally controlled calibration
4. Pin configuration
5. Dimensions
