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LTC2752 - Dual 16-Bit SoftSpan IOUT DACs

The LTC2752 is a dual 16-bit multiplying serial-input, current-output digital-to-analog converter. It operates from a single 3V to 5V supply and is guaranteed monotonic over temperature. The LTC2752A provides full 16-bit performance (±1LSB INL and DNL, max) over temperature without any adjustments. This SoftSpan™ DAC offers six output ranges (up to ±10V) that can be programmed through the 3-wire SPI serial interface, or pinstrapped for operation in a single range.

Any on-chip register (including DAC output-range settings) can be read for verification in just one instruction cycle; and if you change register content, the altered register will be automatically read back during the next instruction cycle.

Voltage-controlled offset and gain adjustments are also provided; and the power-on reset circuit and CLR pin both reset the DAC outputs to 0V regardless of output range.

Features Program or Pin-Strap Six Output Ranges 0V to 5V, 0V to 10V, –2.5V to 7.5V, ±2.5V, ±5V, ±10V Maximum 16-Bit INL Error: ±1 LSB over Temperature Guaranteed Monotonic over Temperature Glitch Impulse 0.6nV•s (3V), 2.2nV•s (5V) Serial Readback of All On-Chip Registers 1μA Maximum Supply Current 2.7V to 5.5V Single-Supply Operation 16-Bit Settling Time: 2μs Voltage-Controlled Offset and Gain Trims Clear and Power-On-Reset to 0V Regardless of Output Range 48-Pin 7mm × 7mm LQFP Package Typical Application

Applications High Resolution Offset and Gain Adjustment Process Control and Industrial Automation Automatic Test Equipment Data Acquisition Systems Packaging

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