D/A converter, 12-bit, 2-channel, SPI, 2.7 ... 5.5 V, DIP-14

12-Bit DAC with SPI™ Interface

Description:
The MCP492X are 2.7 - 5.5V, low-power, low DNL, 12-Bit Digital-to-Analog Converters (DACs) with optional 2x buffered output and SPI interface. The MCP492X are DACs that provide high accuracy and low noise performance for industrial applications where calibration or compensation of signals (such as temperature, pressure and humidity) are required. The MCP492X are available in the extended temperature range and PDIP, SOIC, MSOP and TSSOP packages. The MCP492X devices utilize a resistive string architecture, with its inherent advantages of low DNL error, low ratio metric temperature coefficient and fast settling time. These devices are specified over the extended temperature range. The MCP492X include doublebuffered inputs, allowing simultaneous updates using the LDAC pin. These devices also incorporate a Power-On Reset (POR) circuit to ensure reliable power-up.

Features:
- 12-Bit Resolution
- ±0.2 LSB DNL (typ)
- ±2 LSB INL (typ)
- Single or Dual Channel
- Rail-to-Rail Output
- SPI™ Interface with 20 MHz Clock Support
- Simultaneous Latching of the Dual DACs w/LDAC
- Fast Settling Time of 4.5 µs
- Selectable Unity or 2x Gain Output
- 450 kHz Multiplier Mode
- External Vref Input
- 2.7V to 5.5V Single-Supply Operation
- Extended Temperature Range: -40°C to +125°C

Applications:
- Set Point or Offset Trimming
- Sensor Calibration
- Digitally-Controlled Multiplier/Divider
- Portable Instrumentation (Battery-Powered)
- Motor Feedback Loop Control