CM7502L-MSOTA

CM7502L is a 16-bit unbuffered voltage output DAC. Operating from a 2.7V ~ 5.5V single supply, it guarantees monotonic output voltage over the full temperature range. The unbuffered design enables ultralow power consumption, with only 120μA quiescent current and a low zero-code offset error of 0.5LSB. CM7502L supports a reference voltage input range of 2V ~ VDD. The voltage output swing is 0V ~ VREF. CM7502L integrates an precisely matched internal resistor string which, combined with an external precision op-amp, can produce a bipolar voltage output with a swing of up to ±VREF on RFB. CM7502L uses a SPI/QSPI/MICROWIRE-compatible 3-wire serial interface capable of operating at clock rates up to 50MHz, and can be connected directly to optocouplers to meet the requirements of specific applications. At power-up, the reset circuit sets the CM7502L output to midscale. CLR can also set the CM7502L output to midscale. CM7502L only supports operation in bipolar output mode.

Applications

• High-precision instrumentation calibration circuits
• Process control and industrial automation
• Automatic test equipment
• Precision signal sources

Key features

• Single supply: 2.7V ~ 5.5V
• Low supply current: 120μA
• INL error: ±0.4LSB
• Low glitch impulse: 0.5nV·s
• Fast settling time: 1μs
• Guaranteed monotonic output voltage over full temperature range
• Voltage output directly drives 60kΩ load
• 50MHz SPI/QSPI/MICROWIRE compatible serial interface
• Power-on reset sets DAC output to midscale
• CLR asynchronous reset pin
• Buffered reference input current
• MSOP10 3mm × 3mm, DFN10 3mm × 3mm packages