Analog Devices Inc. LTC1053CN#PBF

Overview

LTC1053CN#PBF from Analog Devices (formerly Linear Technology) is a quad zero-drift operational amplifier designed for ultra-precision DC-coupled signal conditioning. It features 0.5µV max input offset voltage, 0.01µV/°C typical drift, 1.5µV_P-P (0.1Hz–10Hz) input noise, 2.5MHz gain bandwidth, and 4V/µs slew rate - all at 1mA per op amp supply current. It is used in thermocouple amplifiers, strain gauge interfaces, and high-resolution data acquisition systems where microvolt-level accuracy and long-term stability are critical.

For engineers reviewing the LTC1053CN#PBF datasheet, LTC1053CN#PBF pinout, LTC1053CN#PBF application, or LTC1053CN#PBF equivalent, key selection criteria include guaranteed sub-5µV offset, internal sample-and-hold capacitors eliminating external components, rail-to-rail output swing to ground, single-supply operation down to 4.75V, and compatibility with standard 14-pin DIP layouts for drop-in replacement of legacy quad op amps.

Technical Context

The LTC1053CN#PBF implements chopper-stabilized architecture with integrated on-chip sampling capacitors - eliminating external hold capacitors required by most competing chopper amplifiers. Its internal 3.3kHz sampling frequency enables continuous auto-zeroing without external clocking or timing constraints.

It delivers combined DC and AC performance exceeding conventional chopper-stabilized op amps: CMRR ≥114dB, PSRR ≥120dB, and open-loop gain ≥120dB across –40°C to +85°C. Input common-mode range includes ground, and output swings to ground under load - enabling true single-supply operation in sensor front-ends.

Key Specifications

Pinout & Package

The LTC1053CN#PBF is housed in a 14-lead plastic dual-in-line package (PDIP), compatible with industry-standard through-hole mounting and socketing. Package dimensions conform to JEDEC MS-001, with 0.300-inch body width and 0.100-inch lead pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD8628ARZ and OPA2189IDR, the LTC1053CN#PBF uniquely integrates sample-and-hold capacitors for true plug-in replacement of legacy quad op amps, delivers superior low-frequency noise performance below 10Hz, and guarantees sub-5µV offset without calibration - making it optimal for static or quasi-static sensor measurements where DC accuracy dominates.

Availability

LTC1053CN#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and medical instrumentation requiring stable component supply across extended production lifecycles.

Supply support for LTC1053CN#PBF 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 support, manufacturing, and documentation for the LTC portfolio.

The LTC1053 belongs to Linear's precision chopper-stabilized op amp family, engineered specifically for microvolt-level DC accuracy in sensor signal chains where thermal EMF, long-term drift, and 1/f noise must be minimized.

FAQ

What is the maximum operating temperature range for the LTC1053CN#PBF?

The LTC1053CN#PBF is rated for operation from –40°C to +85°C, as specified in the commercial-grade temperature range. This range is validated per the Absolute Maximum Ratings table and applies to all electrical characteristics unless otherwise noted. The device uses a plastic DIP package with θ_JA = 65°C/W, enabling reliable thermal performance in enclosed industrial enclosures without forced air cooling. Derating is not required within this range.

Does the LTC1053CN#PBF require external capacitors for chopper stabilization?

No, the LTC1053CN#PBF does not require external capacitors for chopper stabilization. It integrates on-chip sample-and-hold capacitors - a key differentiator from earlier chopper amplifiers. This eliminates the need for external 10nF–100nF hold capacitors, reducing PCB area, leakage paths, and thermal EMF sources. External capacitors are only recommended for noise filtering or bandwidth limiting, not for core chopper operation.

Can the LTC1053CN#PBF operate from a single 5V supply?

Yes, the LTC1053CN#PBF supports single-supply operation from +4.75V to +16V with V– tied to ground. Its input common-mode range includes ground, and its output swings to ground (V–) with 10kΩ load - enabling direct interfacing with 0–5V ADCs. At +5V supply, each op amp draws ~1mA, delivering 2.5MHz GBW and 4V/µs slew rate, making it suitable for battery-powered portable instrumentation.

What is the overload recovery time specification for the LTC1053CN#PBF?

The LTC1053CN#PBF recovers from positive saturation in 1.5ms and from negative saturation in 3ms - approximately 100× faster than chopper amplifiers requiring external hold capacitors. This rapid recovery is enabled by its integrated capacitor architecture and internal charge management. Recovery time is measured under standard test conditions (±5V supply, RL = 10kΩ) and remains consistent across the –40°C to +85°C operating range.

How does the LTC1053CN#PBF handle aliasing in AC applications?

The LTC1053CN#PBF exhibits aliasing due to its 3.3kHz internal sampling frequency, producing output components at nf_CLK ± mf_IN. In unity-gain inverting configuration, aliases are typically 80–84dB below the fundamental. Signal-to-alias ratio degrades ~6dB per decade of closed-loop gain and worsens with higher feedback resistor values. Bandlimiting the loop gain (e.g., via feedback capacitor) suppresses aliasing - a documented design technique in the datasheet's Application Circuits section.