Overview
The DAC7552IRGTR from Texas Instruments is a 12-bit, dual-channel, voltage-output digital-to-analog converter (DAC) known for its exceptional linearity and monotonicity. This device operates from a single 2.7-V to 5.5-V supply and features ultralow glitch energy and crosstalk, making it ideal for applications requiring high precision and stability. The DAC7552 includes a 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, and it supports clock rates up to 50 MHz. The device is packaged in a small 3-mm × 3-mm, 16-lead QFN package and is specified over a temperature range of –40°C to 105°C.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 5.5 | V | |
| Resolution | 12 bits | |||
| Output Voltage Range | 0 | VREF | V | |
| Settling Time | 5 | µs | ||
| Slew Rate | 1.8 | V/µs | ||
| Glitch Energy | 0.1 | nV-s | ||
| Channel-to-Channel Crosstalk | –100 | dB | ||
| Power Consumption (Typical) | 1.5 mW @ 5 V, 0.75 mW @ 3 V | mW | ||
| Power-Down Current | 2 | µA | ||
| Operating Temperature Range | –40 | 105 | °C |
Key Features
- 12-bit resolution with exceptional linearity and monotonicity
- Rail-to-rail voltage output
- Ultralow glitch energy: 0.1 nV-s
- Ultralow crosstalk: –100 dB
- Low power consumption: 440 µA (max) in normal operation, 2 µA (max) in power-down mode
- Power-on reset to zero scale
- SPI-compatible serial interface up to 50 MHz
- Daisy-chain capability
- Asynchronous hardware clear
- Simultaneous or sequential update of DAC outputs
- Small 3-mm × 3-mm, 16-lead QFN package
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
- Industrial process control
- Waveform generation (from DC to 10 kHz)
- Precision industrial control, including generating ±5-V, ±10-V, and ±12-V outputs
Q & A
- What is the resolution of the DAC7552?
The DAC7552 has a 12-bit resolution.
- What is the supply voltage range for the DAC7552?
The DAC7552 operates from a single 2.7-V to 5.5-V supply.
- What is the settling time of the DAC7552?
The settling time of the DAC7552 is up to 5 µs.
- How much power does the DAC7552 consume in normal operation?
The DAC7552 consumes up to 440 µA in normal operation.
- What is the power-down current of the DAC7552?
The power-down current of the DAC7552 is up to 2 µA.
- Is the DAC7552 compatible with SPI interfaces?
Yes, the DAC7552 is compatible with SPI, QSPI, Microwire, and DSP interface standards.
- What is the operating temperature range of the DAC7552?
The DAC7552 operates over a temperature range of –40°C to 105°C.
- Does the DAC7552 support daisy-chain operation?
Yes, the DAC7552 supports daisy-chain operation.
- How does the power-on reset function work on the DAC7552?
The DAC7552 has a power-on reset circuit that ensures the DAC outputs power up to zero volts and remain there until a valid write cycle occurs.
- What is the typical glitch energy of the DAC7552?
The typical glitch energy of the DAC7552 is 0.1 nV-s.
