LTC7545ACG#TRPBF

Digital To Analog Converters Overview

The LTC7545ACG#TRPBF is a 12-bit multiplying digital-to-analog converter (DAC) featuring a microprocessor-compatible parallel input interface. It serves as a pin-compatible replacement for the AD7545A and AD7545, offering improved accuracy and stability over temperature variations. The device operates on a single 5V or 15V supply and supports both 2-quadrant and 4-quadrant multiplication modes. Key electrical specifications include an integral nonlinearity (INL) of ±0.5 LSB and a gain error of ±1 LSB maximum at 25°C. The component is housed in a 20-lead plastic SSOP package and is rated for commercial operation within a temperature range of 0°C to +70°C.

Digital To Analog Converters Feature Summary

• Improved Direct Replacement: Pin-compatible upgrade for industry standard AD7545A and AD7545 with enhanced accuracy.
• High Precision: Guaranteed DNL and INL of –0.5 LSB over temperature; Gain Error limited to –1 LSB maximum.
• Multiplying Capability: Supports versatile 2-quadrant and 4-quadrant multiplication operations.
• Low Power Consumption: Operates on a single 5V or 15V supply with low quiescent current.

Digital To Analog Converters Applications

• Process Control and Industrial Automation
• Software Controlled Gain Adjustment
• Digitally Controlled Filter and Power Supplies
• Automatic Test Equipment

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix '#TRPBF' indicates tape-and-reel packaging when sourcing this component. Confirm that the 'AC' grade designation corresponds to the commercial temperature range (0°C to +70°C) required for the application environment. Ensure compatibility with existing PCB footprints designed for the legacy AD7545A/AD7545 parts due to the pin-compatible nature of the device.

Digital To Analog Converters Selection Notes

Select the LTC7545ACG#TRPBF for applications requiring a 12-bit resolution DAC with parallel data inputs. The AC grade is suitable for commercial environments operating between 0°C and +70°C. For industrial temperature ranges (-40°C to +85°C), consider the AL or AB grades instead. The G package denotes the 20-lead SSOP form factor. Verify that the system logic levels match the specified VIH and VIL thresholds for the chosen supply voltage.

Digital To Analog Converters Part Context

This component belongs to the LTC7545A family of multiplying DACs manufactured by Analog Devices Inc. The family includes various packages such as PDIP, SO, and SSOP, along with different temperature grades (AK, AB, AL, AC). The LTC7545ACG#TRPBF specifically utilizes the SSOP package and commercial temperature rating, positioning it as a cost-effective solution for general-purpose analog signal generation where high precision is needed without extreme environmental tolerance.

Digital To Analog Converters Replacement Considerations

The datasheet explicitly identifies the LTC7545A as a superior direct replacement for the AD7545A and AD7545. Designers can swap these legacy parts into existing designs without modifying the PCB layout, benefiting from improved linearity and lower sensitivity to output amplifier offset errors.