Analog Devices Inc. LT1722CS5#TRMPBF

Overview

LT1722CS5#TRMPBF from Analog Devices (formerly Linear Technology) is a single-channel, low-noise, high-speed precision operational amplifier in a 5-lead TSOT-23 package. It delivers 200MHz gain bandwidth, 70V/μs slew rate, and 3.8nV/√Hz input voltage noise, optimized for video line driving, active filtering, and data acquisition systems operating on ±5V or single 5V supplies.

For engineers reviewing the LT1722CS5#TRMPBF datasheet, LT1722CS5#TRMPBF pinout, LT1722CS5#TRMPBF application, or LT1722CS5#TRMPBF equivalent, this page provides verified electrical specifications, thermal performance at 0°C to 70°C, SOT-23 package dimensions, real-world settling behavior, and validated alternatives for high-fidelity analog signal conditioning.

Technical Context

The LT1722CS5#TRMPBF employs a voltage-feedback architecture with a folded-cascode first stage and complementary emitter-follower output stage, enabling unity-gain stability with ≤100pF capacitive loads. Its input bias current cancellation technique eliminates the need for matched source impedances while maintaining low offset drift (≤7μV/°C).

It operates across ±2.3V to ±5.5V dual supplies or 4.6V to 11V single supply, delivering ±3.1V output swing into 500Ω (±5V) and 1.5V–3.5V swing into 500Ω referenced to 2.5V (5V). Channel separation exceeds 82dB at 1MHz, supporting differential video and RF signal integrity.

Key Specifications

Pinout & Package

LT1722CS5#TRMPBF is housed in a 5-lead plastic TSOT-23 (ThinSOT™) package, 1.00mm max height, JEDEC MO-193 compliant, with exposed pad not electrically connected. Thermal resistance θ_JA = 250°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADA4897-1ARMZ and OPA837IDBVR, the LT1722CS5#TRMPBF offers the best balance of low noise, low power, guaranteed capacitive-load stability, and tight DC specifications-making it optimal for cost-sensitive, thermally constrained video and broadband receiver designs requiring proven reliability.

Availability

LT1722CS5#TRMPBF is available at Aetrix Electronics and suitable for differential video line driving, ADSL/VDSL receiver front-ends, and active anti-aliasing filters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for LT1722CS5#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 acquired Linear Technology in 2017 and maintains full product continuity, documentation, and technical support for all Linear op amp families.

The LT1722CS5#TRMPBF belongs to Linear's high-speed precision op amp product line, engineered for applications demanding simultaneous excellence in noise, speed, DC accuracy, and drive capability-particularly in video, communications, and test equipment signal chains.

FAQ

What is the maximum capacitive load the LT1722CS5#TRMPBF can drive while remaining unity-gain stable?

The LT1722CS5#TRMPBF is specified as unity-gain stable with capacitive loads up to 100pF. This is confirmed in the Absolute Maximum Ratings and Applications Information sections of the official datasheet. For loads exceeding 100pF, a 25Ω series resistor at the output restores stability without degrading small-signal bandwidth. The LT1722CS5#TRMPBF's internal compensation eliminates need for external compensation networks in standard configurations.

Does the LT1722CS5#TRMPBF support single-supply operation, and what is its output swing under those conditions?

Yes, the LT1722CS5#TRMPBF operates from a single 5V supply. With a 500Ω load referenced to 2.5V, its output swings from 1.5V to 3.5V - a 2V peak-to-peak range centered at mid-supply. This rail-complementary behavior enables direct interfacing with ADC reference voltages and avoids level-shifting circuitry. The LT1722CS5#TRMPBF maintains 70V/μs slew rate and 200MHz GBW under single-supply conditions, as verified in the Electrical Characteristics tables.

What is the input offset voltage specification for the LT1722CS5#TRMPBF, and how does it vary with temperature?

The LT1722CS5#TRMPBF has a maximum input offset voltage of 400μV at 25°C and 0°C to 70°C ambient, with a typical drift of 3–7μV/°C. This is explicitly stated in the "ELECTRICAL CHARACTERISTICS" table for the LT1722 SOT-23 variant under the "●" (0°C to 70°C) condition. The LT1722CS5#TRMPBF's low drift ensures minimal baseline shift in precision DC-coupled video and sensor signal paths over commercial temperature ranges.

How does the LT1722CS5#TRMPBF achieve low input bias current without requiring matched source resistances?

The LT1722CS5#TRMPBF uses an input bias current cancellation technique that actively nulls the net input current, resulting in ≤300nA max input bias current and ≤300nA max input offset current. Because the cancellation is internal and process-trimmed, external source resistors do not need to be balanced - unlike conventional bipolar op amps. This design allows the LT1722CS5#TRMPBF to maintain low offset error even with unmatched 0.8k–12kΩ source impedances, as documented in the Applications Information section.

Is the LT1722CS5#TRMPBF pin-compatible with other op amps in the LT172x family, such as the LT1723 or LT1724?

No, the LT1722CS5#TRMPBF is not pin-compatible with the LT1723 or LT1724. It uses a 5-pin TSOT-23 package (OUT, V–, +IN, –IN, V+), whereas the LT1723 is dual-channel in 8-pin SO or MSOP, and the LT1724 is quad-channel in 14-pin SO. Pinouts differ fundamentally across the family - the LT1722CS5#TRMPBF's pin 1 is OUT, while LT1723's pin 1 is V+, and LT1724's pin 1 is OUT A. Board-level replacement requires redesign.