Analog Devices Inc. LTC2066HS5#TRMPBF

Overview

LTC2066HS5#TRMPBF from Analog Devices is a single-channel, zero-drift operational amplifier in a 5-lead TSOT-23 package, designed for ultra-low-power precision signal conditioning. It delivers 10µA maximum supply current, 5µV max input offset voltage, 0.02µV/°C max offset drift, and rail-to-rail input/output operation across 1.7V to 5.25V supply-enabling high-resolution current sensing and sensor interfacing in energy-constrained wireless sensor nodes.

For engineers reviewing the LTC2066HS5#TRMPBF datasheet, LTC2066HS5#TRMPBF pinout, LTC2066HS5#TRMPBF application, or LTC2066HS5#TRMPBF equivalent, key selection criteria include its guaranteed –40°C to 125°C operating range, 170nA shutdown current, integrated EMI filter (90dB rejection at 1.8GHz), and compatibility with high-value feedback resistors due to 35pA max input bias current over temperature.

Technical Context

The LTC2066HS5#TRMPBF employs auto-zeroing and chopper-stabilized architecture to achieve near-zero DC errors while maintaining continuous-time signal path integrity. Its internal 25kHz chopping frequency is suppressed to eliminate idle tones, and the integrated EMI filter ensures robust operation in noisy RF environments such as industrial IoT gateways and portable medical monitors.

It features a dedicated SHDN pin referenced to V–, enabling low-charge power-up transients ideal for duty-cycled applications. The amplifier supports unity-gain stable operation with 100kHz gain-bandwidth product and 17.5V/ms slew rate, optimized for low-frequency precision measurement rather than high-speed signal processing.

Key Specifications

Pinout & Package

Package: 5-lead plastic TSOT-23, 0.95mm height, exposed pad optional (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision micropower op-amp applications.

Compared with LTC2066HS5#TRMPBF, LTC2063HS5#TRMPBF offers superior DC precision at higher quiescent cost, while AD8531AKSZ-REEL7 trades shutdown capability and EMI filtering for wider bandwidth-making LTC2066HS5#TRMPBF optimal for thermally stable, RF-noisy, battery-limited applications demanding guaranteed 125°C operation.

Availability

LTC2066HS5#TRMPBF is available at Aetrix Electronics and suitable for low-power current sensing, wireless sensor node signal chains, portable medical instrumentation, and energy harvesting interfaces requiring stable component supply across extended temperature ranges.

Supply support for LTC2066HS5#TRMPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LTC2066HS5#TRMPBF belongs to the LTC® zero-drift op-amp family, engineered specifically for ultra-low-power, high-precision measurement in battery-operated and energy-harvesting systems where µV-level accuracy must be maintained across harsh thermal environments.

FAQ

What is the maximum operating temperature range specified for the LTC2066HS5#TRMPBF?

The LTC2066HS5#TRMPBF is fully specified over the –40°C to +125°C temperature range, with all key parameters-including input offset voltage, offset drift, input bias current, and supply current-guaranteed across this extended industrial grade. This makes LTC2066HS5#TRMPBF suitable for under-hood automotive sensors, industrial motor controllers, and outdoor environmental monitoring equipment where ambient temperatures exceed standard commercial limits.

Does the LTC2066HS5#TRMPBF require external capacitors on its supply pins?

Yes, the LTC2066HS5#TRMPBF requires a bypass capacitor between V+ and V– pins, placed as close as possible to the device. Analog Devices recommends a 100nF ceramic capacitor with low ESR to stabilize the supply and suppress high-frequency noise. The internal EMI filter enhances RF immunity but does not eliminate the need for proper local decoupling, especially when operating near switching regulators or RF transceivers in the same system.

How does the SHDN pin function on the LTC2066HS5#TRMPBF?

The SHDN pin on the LTC2066HS5#TRMPBF is referenced to V– and enables low-power shutdown mode when pulled to V–. Logic high threshold is 1.8V (min), logic low is 0.8V (max). When active, the amplifier draws ≤170nA supply current per channel and disables output drive-allowing rapid wake-up with 0.4ms power-up time and minimal output glitch. Floating the SHDN pin is not recommended; it should be actively driven or pulled to V– via a resistor.

Can the LTC2066HS5#TRMPBF drive a 10kΩ load while maintaining rail-to-rail output swing?

Yes, the LTC2066HS5#TRMPBF delivers rail-to-rail output swing into a 10kΩ load: VOH (V+ – VOUT) is ≤15mV and VOL (VOUT – V–) is ≤15mV at room temperature. This performance is maintained across the full –40°C to 125°C range, with worst-case swing degradation limited to 20mV. For heavier loads (<1kΩ), output swing degrades significantly, so LTC2066HS5#TRMPBF is best suited for high-impedance interfaces like SAR ADC inputs or precision voltage references.

Is the LTC2066HS5#TRMPBF pin-compatible with other members of the LTC2066/LTC2067/LTC2068 family?

No, the LTC2066HS5#TRMPBF is not pin-compatible with other variants in the family. While the LTC2066ISC6#TRMPBF uses the 6-lead SC70 package with identical pinout (OUT, V–, –IN, +IN, V+, SHDN), the LTC2066HS5#TRMPBF omits the SHDN pin and uses a 5-lead TSOT-23 configuration (OUT, V–, +IN, –IN, V+). Therefore, board layout must be specific to the S5 package; migration to SC70 or dual/quad versions requires PCB redesign.