LTC2757 pin function diagram and application

The following is the circuit diagram of [LTC2757 pin function diagram and application]. **Key Features:** - Up to 18-bit INL error: ±1LSB over temperature - Six programmable output ranges: 0V to 5V, 0V to 10V, -2.5V to 7.5V, ±2.5V, ±5V, ±10V - Monotonic low-interference pulses guaranteed: 1.4nV•s (3V), 3nV•s (5V) - 18-bit settling time: 2.1μs - Single supply operation from 2.7V to 5.5V - Constant reference current with voltage control - Offset and gain correction available - Parallel interface with full register readback capability - Output can be reset to 0V via CLR pin or power-on reset - 48-pin 7mm x 7mm LQFP package

LTC2757 structure block diagram

The LTC2757 is a high-performance 18-bit multiplying digital-to-analog converter (DAC) that delivers full 18-bit accuracy across the entire operating temperature range without requiring any calibration. It guarantees monotonicity for all performance levels and supports a wide range of output configurations. This device operates on a single supply voltage ranging from 2.7V to 5.5V, making it ideal for applications where power efficiency is critical. The SoftSpan™ DAC technology allows users to select one of six output ranges—either through a parallel interface or by using pin-bonding—enabling flexibility in system design. In addition to its excellent DC performance, the LTC2757 also offers superior AC characteristics, such as a fast 2.1μs settling time to 1LSB and minimal interference pulses of 1.4nV•s at 3V. The bidirectional parallel interface allows for complete readback of internal registers, including DAC output range settings, providing greater control and visibility into the device’s operation. A dedicated CLR pin and power-on reset circuit ensure that the DAC output is always set to 0V upon initialization, regardless of the selected output range. This feature enhances system reliability and simplifies startup procedures. The LTC2757 is housed in a compact 48-pin LQFP package, which is well-suited for space-constrained designs. Its combination of high precision, flexibility, and ease of use makes it an excellent choice for a wide range of industrial, medical, and test equipment applications. (Editor: Circuit Diagram)

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