Analog Devices Inc. LTC6242HGN#TRPBF

Overview

LTC6242HGN#TRPBF from Analog Devices (formerly Linear Technology) is a quad, rail-to-rail output, low-noise CMOS operational amplifier optimized for high-precision, low-power signal conditioning in harsh thermal environments. It delivers 18MHz gain bandwidth, 10V/μs slew rate, 550nV_P-P 0.1Hz–10Hz noise, 150μV max input offset voltage (–40°C to 125°C), and 0.2pA typical input bias current - enabling accurate amplification of high-impedance sensor outputs in medical instrumentation and industrial data acquisition systems.

For engineers reviewing the LTC6242HGN#TRPBF datasheet, LTC6242HGN#TRPBF pinout, LTC6242HGN#TRPBF application, or LTC6242HGN#TRPBF equivalent, key selection criteria include guaranteed H-grade (–40°C to 125°C) operation, 16-pin SSOP package compatibility with guard ring layouts, rail-to-rail output swing within 30mV of rails, and validated performance on 2.8V–6V single-supply or ±2.5V dual-supply configurations.

Technical Context

The LTC6242HGN#TRPBF implements a unity-gain-stable CMOS input stage with ultra-low input capacitance (3.5pF differential, 3pF common-mode) and 10¹²Ω input resistance, enabling stable interfacing with photodiode and piezoelectric transducers without compromising bandwidth. Its output stage uses complementary MOSFETs to achieve rail-to-rail swing while maintaining 10V/μs slew rate and 18MHz gain bandwidth under 2.5mA per amplifier supply current.

Designed for precision DC-coupled applications, it features guaranteed 2.5μV/°C max input offset drift and 78dB min common-mode rejection (0V ≤ V_CM ≤ 3.5V) over its full –40°C to 125°C operating range. Channel-to-channel matching (e.g., 185μV max V_OS match) supports multi-channel instrumentation where inter-amplifier consistency is critical.

Key Specifications

Pinout & Package

Package: 16-lead plastic SSOP (GN), 5.3mm × 6.2mm body, 0.635mm pitch, exposed pad optional connection to V–.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OP4177ARUZ and TLV9064IPWR, the LTC6242HGN#TRPBF uniquely balances 18MHz bandwidth, 550nV_P-P low-frequency noise, and guaranteed –40°C to 125°C operation - making it optimal for high-speed, high-accuracy industrial and medical systems where thermal robustness and wide dynamic range are non-negotiable.

Availability

LTC6242HGN#TRPBF is available at Aetrix Electronics and suitable for medical instrumentation, industrial process control, and automotive sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6242HGN#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 semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LTC6242HGN#TRPBF belongs to ADI's legacy Linear Technology precision op amp portfolio, engineered specifically for low-noise, low-input-bias, rail-to-rail output applications demanding guaranteed performance from –40°C to 125°C in mission-critical systems.

FAQ

What is the maximum operating temperature range for the LTC6242HGN#TRPBF?

The LTC6242HGN#TRPBF is rated for continuous operation from –40°C to 125°C (H-grade), with all electrical specifications guaranteed across this full range. This includes parameters such as input offset voltage (150μV max), input bias current (1pA max), and gain bandwidth (12MHz min), making it suitable for under-hood automotive and industrial control applications where ambient temperatures exceed 105°C.

Does the LTC6242HGN#TRPBF support single-supply operation?

Yes, the LTC6242HGN#TRPBF supports true single-supply operation from 2.8V to 6V. Its input common-mode range extends to the negative rail (V–), and its rail-to-rail output swings within 30mV of both supply rails - enabling direct interfacing with 3.3V ADCs and microcontrollers without level-shifting circuitry. The device is fully specified at 3V and 5V supplies.

How does the LTC6242HGN#TRPBF achieve ultra-low input bias current?

The LTC6242HGN#TRPBF achieves 0.2pA typical input bias current via a proprietary CMOS input stage with guarded gate structures and optimized oxide thickness, minimizing gate leakage. Input bias remains below 1pA max across –40°C to 125°C, ensuring minimal voltage error (<1mV) even with 1GΩ source impedances - critical for photodiode, pH probe, and piezoelectric sensor interfaces.

What is the purpose of the NC pins (pins 8 and 16) on the LTC6242HGN#TRPBF SSOP package?

Pins 8 and 16 of the LTC6242HGN#TRPBF are designated NC (no connect) and correspond to internal test pads not bonded to active circuitry. They must remain unconnected in the PCB layout. While the underside metal pad may optionally connect to V– for thermal or EMI improvement, pins 8 and 16 serve no functional role and should not be routed or soldered to any net.

Can the LTC6242HGN#TRPBF drive a 10kΩ load while maintaining rail-to-rail output swing?

Yes, the LTC6242HGN#TRPBF maintains rail-to-rail output swing (within 30mV of V+ and V–) into 10kΩ loads at room temperature. At 5mA load current, the output swing degrades to within 325mV of the rails - still sufficient for most 12-bit+ ADC interfaces. For 10kΩ loads, output swing remains within 75mV of rails, preserving >97% of dynamic range in 3.3V systems.