Analog Devices Inc. LTC6241HVCS8#TRPBF

Overview

LTC6241HVCS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail output, low-noise CMOS operational amplifier optimized for high-precision, low-input-bias-current signal conditioning. It delivers 18MHz gain bandwidth, 10V/μs slew rate, 550nV_P-P 0.1Hz–10Hz noise, and guaranteed ≤1pA input bias current at 25°C - enabling high-fidelity amplification of ultra-high-impedance sources such as photodiode and piezoelectric transducers in ±5V supply systems.

For engineers reviewing the LTC6241HVCS8#TRPBF datasheet, LTC6241HVCS8#TRPBF pinout, LTC6241HVCS8#TRPBF application, or LTC6241HVCS8#TRPBF equivalent, key selection criteria include its HV-grade ±5.5V total supply capability, SO-8 package compatibility with guard-ring PCB layouts, H-grade temperature range (–40°C to 125°C), and verified performance in low-noise, high-common-mode-rejection instrumentation front-ends.

Technical Context

The LTC6241HVCS8#TRPBF integrates two independent, unity-gain-stable CMOS op amps with input common-mode range extending to the negative rail and output swing within 30mV of both rails. Its 125°C junction-rated SO-8 package supports operation up to ±5V supplies, while input capacitance (3.5pF differential, 3pF common-mode) and ultra-low input bias current (<1pA max) minimize loading on high-Z sensors.

Designed for precision DC-coupled and wideband AC applications, it features guaranteed 83dB CMRR over –5V ≤ V_CM ≤ 3.5V, 85dB PSRR, and 13–18MHz gain-bandwidth product across temperature - making it suitable for single-supply and split-supply transimpedance, active filtering, and differential-to-single-ended conversion stages where offset drift (≤2.5μV/°C) and noise integrity are critical.

Key Specifications

Pinout & Package

Package: 8-lead plastic SO (SO-8), lead-free, tape-and-reel. Pinout conforms to standard dual op amp configuration with independent inputs/outputs and shared power pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADA4625-2ARZ and OPA2189IDR, the LTC6241HVCS8#TRPBF uniquely balances ultra-low input bias current (<1pA), ±5.5V supply capability, and 18MHz bandwidth - making it the only option among the three qualified for high-impedance, bipolar-supply, wideband sensor interfaces without trade-offs in leakage or voltage range.

Availability

LTC6241HVCS8#TRPBF is available at Aetrix Electronics and suitable for photodiode amplification, medical ECG front-ends, and industrial sensor signal conditioning requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for LTC6241HVCS8#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The LTC6241HVCS8#TRPBF belongs to ADI's legacy Linear Technology precision op amp portfolio, engineered specifically for ultra-low-input-bias-current, low-noise, rail-to-rail signal conditioning in demanding sensor and instrumentation applications.

FAQ

What is the maximum supply voltage rating for the LTC6241HVCS8#TRPBF?

The LTC6241HVCS8#TRPBF supports a total supply voltage of up to ±5.5V (11V across V+ and V–), as specified in the Absolute Maximum Ratings table. This HV rating distinguishes it from the standard LTC6241CS8#TRPBF (7V max) and enables reliable operation in legacy ±5V industrial and test equipment where supply headroom is constrained.

Does the LTC6241HVCS8#TRPBF have guaranteed input bias current over temperature?

Yes - the LTC6241HVCS8#TRPBF guarantees ≤1pA input bias current at 25°C, and ≤75pA over the full –40°C to 125°C operating range. This specification is validated per Electrical Characteristics tables for the HV and H-grade variants, ensuring predictable leakage in high-impedance sensor circuits across automotive and industrial thermal environments.

Can the LTC6241HVCS8#TRPBF drive capacitive loads without instability?

The LTC6241HVCS8#TRPBF is unity-gain stable and characterized with 5pF capacitive load (see Typical Performance Characteristics G13–G15). For loads >50pF, a series resistor (≥100Ω) at the output is recommended to maintain phase margin. Its 18MHz GBW and internal compensation enable robust driving of ADC input capacitors and cable capacitance in data acquisition systems.

What is the input common-mode voltage range for the LTC6241HVCS8#TRPBF at ±5V supplies?

At ±5V supplies, the LTC6241HVCS8#TRPBF guarantees an input common-mode range of –5V to +3.5V (relative to ground), as confirmed in the HV-grade Electrical Characteristics table. This extends to the negative rail, supporting true single-supply operation down to V–, and accommodates large common-mode offsets in industrial differential signaling.

Is the LTC6241HVCS8#TRPBF pin-compatible with other SO-8 dual op amps?

No - the LTC6241HVCS8#TRPBF follows the industry-standard dual op amp pinout (V–, OUT A, –IN A, +IN A, +IN B, –IN B, OUT B, V+), matching devices like the OP27 and AD822. However, direct substitution requires verification of supply range, input bias current, and noise performance; it is not a drop-in replacement for JFET or bipolar-input op amps due to its CMOS architecture and ultra-low I_B.