Overview
The AD5557CRUZ, produced by Analog Devices Inc., is a dual precision, 14-bit, multiplying, low power, current-output, parallel input digital-to-analog converter (DAC). This device is part of the AD5547/AD5557 family and is designed to operate from a single supply voltage ranging from 2.7 V to 5.5 V. It features built-in 4-quadrant resistors and a feedback resistor (RFB) that simplifies current-to-voltage conversion. The AD5557CRUZ is packaged in a compact 38-lead TSSOP and supports an extended automotive operating temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Resolution | N | AD5557, 1 LSB = VREF/214 = 610 µV at VREF = 10 V | - | - | - | 14 Bits |
| Relative Accuracy (INL) | - | Grade: AD5557C ±1 LSB | - | - | ±1 LSB | - |
| Supply Voltage Range | VDD RANGE | - | 2.7 | - | 5.5 | V |
| Positive Supply Current | IDD | Logic inputs = 0 V | - | - | 10 µA | - |
| Settling Time | - | - | - | - | 0.5 µs | - |
| Full-Scale Current | - | With VREF = 10 V | - | - | 2 mA ± 20% | - |
| Operating Temperature Range | TA | - | -40°C | - | +125°C | - |
Key Features
- Dual precision, 14-bit multiplying DAC with current-output and parallel input.
- Operates from a single supply voltage of 2.7 V to 5.5 V.
- Built-in 4-quadrant resistors for unipolar and bipolar output ranges (0 V to –VREF, 0 V to +VREF, or ±VREF).
- Low power consumption with a maximum supply current of 10 µA.[li>Low noise of 12 nV/√Hz and fast settling time of 0.5 µs.[li>Compact 38-lead TSSOP package.[li>Extended automotive operating temperature range of −40°C to +125°C.[li>Selectable zero-scale/midscale power-on presets.
Applications
- Automatic test equipment.[li>Instrumentation.[li>Digitally controlled calibration.[li>Digital waveform generation.[li>Other applications requiring precise and low-power DACs.
Q & A
- What is the resolution of the AD5557CRUZ?
The AD5557CRUZ has a resolution of 14 bits, with 1 LSB = VREF/214 = 610 µV at VREF = 10 V.[li>What is the operating supply voltage range of the AD5557CRUZ?
The operating supply voltage range is from 2.7 V to 5.5 V.[li>What is the maximum supply current of the AD5557CRUZ?
The maximum supply current is 10 µA.[li>What is the settling time of the AD5557CRUZ?
The settling time is 0.5 µs.[li>What are the built-in resistors used for in the AD5557CRUZ?
The built-in 4-quadrant resistors facilitate resistance matching and temperature tracking for multiquadrant applications.[li>What is the operating temperature range of the AD5557CRUZ?
The operating temperature range is from −40°C to +125°C.[li>What package type is the AD5557CRUZ available in?
The AD5557CRUZ is available in a 38-lead TSSOP package.[li>What are some common applications of the AD5557CRUZ?
Common applications include automatic test equipment, instrumentation, digitally controlled calibration, and digital waveform generation.[li>Does the AD5557CRUZ support selectable power-on presets?
Yes, the AD5557CRUZ supports selectable zero-scale/midscale power-on presets.
