LTC2053HDD#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LTC2053HDD#PBF is a precision, rail-to-rail, zero-drift instrumentation amplifier in an 8-lead (3mm × 3mm) plastic DFN package. It features a typical CMRR of 116dB independent of gain and a maximum input offset voltage of 10µV with drift under 50nV/°C. Gain is programmable via two external resistors. The device operates on single supplies from 2.7V to 5.5V or dual ±5.5V supplies, consuming approximately 750µA to 1.3mA depending on supply voltage.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail differential inputs and single-ended output for wide dynamic range operation
• Zero-drift architecture utilizing charge-balanced sampled data techniques
• Programmable DC gain using only two external resistors
• High common-mode rejection ratio maintained across varying gains

Instrumentation, Op Amps, Buffer Amps Applications

• Thermocouple amplifiers
• Electronic scales
• Medical instrumentation
• Strain gauge amplifiers
• High resolution data acquisition

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific H-grade temperature rating (-40°C to 125°C) against application requirements. Confirm the DD package dimensions match the PCB footprint. Ensure power supply bypassing capacitors are placed close to the V+ and V– pins to maintain stability due to the internal sampling circuitry.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high DC accuracy and low drift are critical. The H-grade variant supports extended industrial temperatures up to 125°C. Use the standard LTC2053 if synchronization to an external clock is not required, as the SYNC version offers that feature but requires careful handling of the CLK pin if unused.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LTC2053 family of zero-drift instrumentation amplifiers. It shares architectural similarities with the LTC2053-SYNC but lacks the external clock synchronization capability. The H-grade designation indicates an extended operating temperature range compared to C and I grades.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LTC2053HDD#TRPBF

Instrumentation, Op Amps, Buffer Amps FAQ

How is the gain of the LTC2053 configured?

The gain is set by two external resistors connected between the RG pin and the inverting input, following the formula G = 1 + R2/R1.

What is the input current behavior during operation?

Input charging currents occur during each sampling period. If source resistance is less than 10kΩ, no significant DC errors result from these currents.