CM7501 Precision, unipolar, voltage output 16 bit DAC

Overview
The CM7501 is a 16-bit unbuffered voltage-output digital-to-analog converter (DAC). Operating from a single 2.7 V to 5.5 V supply, it guarantees monotonic output voltage over the full temperature range. The unbuffered architecture enables extremely low power consumption, with a quiescent current of just 120 μA and a low offset error of 0.5 LSB.

The CM7501 accepts a reference voltage range from 2 V to VDD. The voltage output swings from 0 V to VREF.

It features an SPI/QSPI/MICROWIRE-compatible 3-wire serial interface that operates at clock rates up to 50 MHz and can be directly interfaced with optocouplers for specific application requirements. A power-on reset circuit initializes the CM7501 output to zero scale. The nCLR pin also asynchronously clears the output to zero scale.

The CM7501 operates only in unipolar output mode.

Features

• Single supply: 2.7 V to 5.5 V
• Low supply current: 120 μA
• INL error: ±0.4 LSB
• Low glitch impulse: 0.5 nV·s
• Fast settling time: 1 μs
• Monotonic over temperature
• Voltage output capable of driving 60 kΩ loads directly
• 50 MHz SPI/QSPI/MICROWIRE-compatible serial interface
• nCLR asynchronous reset pin
• Compensated reference source current
• Package options: MSOP-8 (3 mm × 3 mm), DFN-8 (3 mm × 3 mm), SOP-8 (4.9 mm × 3.9 mm)

Applications

• Galvanometer laser scanner control
• High-precision instrumentation calibration circuits
• Process control and industrial automation
• Automated test equipment (ATE)
• Precision signal sources

DFN8

Product list

Precision DAC

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