TC9400CPD

Overview

The TC9400CPD is a low-power CMOS Voltage-to-Frequency and Frequency-to-Voltage converter manufactured by Microchip Technology. It operates with a full-scale frequency of 100 kHz and provides an integral nonlinearity of ±0.25% FSR. The device supports single or dual power supplies ranging from +8V to +15V or ±4V to ±7.5V. It functions within an operating temperature range of 0°C to +70°C and is housed in a 14-pin Plastic DIP package.

Feature Summary

• Provides linear conversion between analog voltage signals and digital pulse frequencies using charge balancing techniques.
• Features open-drain outputs compatible with MOS, CMOS, and TTL logic families for direct interfacing.
• Includes internal self-start circuitry to ensure proper operation immediately upon power application.

Applications

• Microprocessor data acquisition systems
• Analog data transmission and recording
• Phase locked loops
• Frequency meters and tachometers

Procurement Notes

Verify the specific suffix 'CPD' confirms the 14-pin Plastic DIP package and commercial temperature grade (0°C to +70°C). Ensure the source document explicitly lists this part number as active. Confirm RoHS compliance status through official manufacturer channels before procurement.

Selection Notes

Select the TC9400CPD when a ±0.25% linearity specification meets system requirements. Choose this variant over the TC9401 or TC9402 based on the required accuracy level. Consider the PDIP-14 package constraints for PCB layout and thermal dissipation during design.

Part Context

This component belongs to the TC9400/9401/9402 family of V/F and F/V converters. The TC9400 represents the mid-range accuracy option within this series, offering a balance between performance and cost compared to the higher precision TC9401 and lower cost TC9402 variants.

Replacement Considerations

Public confirmed substitute part numbers: TC9400COD, TC9400EOD.