Analog Devices Inc. LTC2055HVIMS8#TRPBF

Overview

LTC2055HVIMS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, micropower, zero-drift operational amplifier in an 8-lead MSOP package, rated for –40°C to +85°C operation. It delivers 3 μV max input offset voltage, 30 nV/°C max drift, 130 dB PSRR/CMRR, rail-to-rail output swing, and 500 kHz gain-bandwidth - enabling precision DC-coupled signal conditioning in battery-powered instrumentation and industrial sensor interfaces.

For engineers reviewing the LTC2055HVIMS8#TRPBF datasheet, LTC2055HVIMS8#TRPBF pinout, LTC2055HVIMS8#TRPBF application, or LTC2055HVIMS8#TRPBF equivalent, key selection criteria include guaranteed high-voltage supply support (±5.5 V), ultra-low drift over temperature, sub-2 μV_P-P 0.01–10 Hz noise, and dual-channel zero-drift performance in space-constrained MSOP layouts.

Technical Context

The LTC2055HVIMS8#TRPBF employs auto-zeroing architecture with a 1 kHz internal clock to continuously correct input offset and drift, achieving near-zero DC error across voltage, temperature, and common-mode variations. Its input stage supports common-mode range from V– to V+ – 0.5 V (at 25°C) and features picoampere-level input bias current (1 pA typ).

It operates from ±2.7 V to ±5.5 V total supply (11 V max), delivering 140 dB open-loop gain and 0.5 V/μs slew rate. The dual amplifier configuration shares no internal resources - each channel maintains independent offset correction, ensuring channel-to-channel isolation critical for differential sensing and instrumentation amplifier front-ends.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (MS8), 3.0 mm × 3.0 mm × 1.1 mm body, exposed pad optional for thermal enhancement. Pin 1 marked by dot or beveled corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual zero-drift op amp applications.

Compared with LTC2055IMS8#TRPBF and AD8629ARZ, the LTC2055HVIMS8#TRPBF uniquely combines ±5.5 V operation, dual-channel zero-drift performance, and sub-2 μV_P-P low-frequency noise - making it the only option for precision bipolar sensor conditioning in space-constrained, battery-aware industrial designs.

Availability

LTC2055HVIMS8#TRPBF is available at Aetrix Electronics and suitable for thermocouple amplification, strain gauge signal conditioning, and medical ECG front-end designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2055HVIMS8#TRPBF 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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.

The LTC2055HVIMS8#TRPBF belongs to Linear's zero-drift op amp product line, engineered specifically for DC-accurate, low-noise, low-power signal conditioning in instrumentation, medical, and industrial sensing applications.

FAQ

What is the maximum supply voltage for LTC2055HVIMS8#TRPBF?

The LTC2055HVIMS8#TRPBF supports a total supply voltage of up to 12 V, meaning it can operate from ±5.5 V supplies. This exceeds the standard LTC2055's ±5 V limit and enables direct integration into legacy ±5 V systems with margin for rail tolerance or transient spikes. Absolute maximum rating is 12 V between V+ and V– terminals.

Does LTC2055HVIMS8#TRPBF require external capacitors for stability?

No, the LTC2055HVIMS8#TRPBF is unity-gain stable and does not require external compensation capacitors. Its internal architecture is optimized for stable operation with resistive feedback networks up to 1 MΩ. However, a 0.1 μF bypass capacitor between V+ and V– near the device is recommended to suppress high-frequency supply noise that could modulate the auto-zero clock.

Can LTC2055HVIMS8#TRPBF drive ADC inputs directly?

Yes, the LTC2055HVIMS8#TRPBF can directly drive SAR and delta-sigma ADC inputs due to its rail-to-rail output swing (within 20 mV of rails into 5 kΩ) and low output impedance (<1 Ω typical). For optimal settling, pair with an RC filter (e.g., 10 Ω + 100 pF) between LTC2055HVIMS8#TRPBF and ADC to limit charge injection during sampling.

What is the impact of the 1 kHz auto-zero clock on LTC2055HVIMS8#TRPBF output?

The LTC2055HVIMS8#TRPBF's 1 kHz auto-zero clock produces two forms of residual feedthrough: input-referred (~0.2 μV_RMS) and impedance-dependent (reduced by keeping source resistance <10 kΩ). In most DC-coupled applications, this is negligible. For sensitive AC measurements near 1 kHz, band-reject filtering or synchronous sampling aligned to the clock phase minimizes impact.

Is LTC2055HVIMS8#TRPBF pin-compatible with other MSOP-packaged dual op amps?

The LTC2055HVIMS8#TRPBF uses the industry-standard 8-lead MSOP (MS8) footprint, matching pinout with generic dual op amps like the OP2177 or AD8629. However, functional compatibility requires verification of supply range, input common-mode range, and output swing - the LTC2055HVIMS8#TRPBF's ±5.5 V rating and V–-to-(V+–0.5 V) input range differ from many MS8 op amps.