LTC6605CDJC-7#TRPBF

Overview

The LTC6605CDJC-7#TRPBF is a dual matched 7MHz lowpass filter with low noise and low distortion differential amplifiers. It contains two independent fully differential amplifiers configured as matched second-order lowpass filters, featuring internal laser-trimmed resistors and capacitors for precise gain and phase matching. The device operates on a supply voltage ranging from 2.7V to 5.25V and accepts single-ended or differential inputs. It offers pin-selectable gains of 0dB, 12dB, or 14dB and three-state BIAS pins for power consumption control. The component is housed in a compact 22-pin 6mm x 3mm DFN package.

Feature Summary

• Dual matched second-order lowpass filters with integrated differential amplifiers
• Internal laser-trimmed components ensure precise gain and phase matching between channels
• Pin-selectable passband gain configurations without external components
• Three-state BIAS pins allow selection between shutdown, medium power, and full power modes

Applications

• WCDMA ADC driver and filtering
• Antialiasing filter applications
• Single-ended to differential signal conversion
• DAC smoothing filter circuits
• Zero-IF direct conversion receivers

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging rather than tube packaging when sourcing this part number. Confirm that the CDJC variant corresponds to the commercial temperature range specifications defined in the manufacturer documentation. Ensure compatibility with the required lead-free finish standards before procurement.

Selection Notes

Select this component when dual-channel matched filtering with low noise density is required. Verify that the input common mode voltage range accommodates the system's signal levels relative to the supply rails. Consider the available gain options and the impact of external balancing resistors on the final frequency response characteristics.

Part Context

This part belongs to the LTC6605 family of dual matched filter amplifiers. The 'C' designation identifies the commercial temperature grade operating from 0°C to 70°C. The '7' suffix specifies the 7MHz nominal cutoff frequency configuration. Other variants in the series include different frequency options and industrial temperature grades.

Replacement Considerations

LTC6605IDJC-7#TRPBF serves as an industrial temperature grade replacement within the same package and electrical specification profile.