Analog Devices Inc. LT1880CS5#TRPBF

Overview

LT1880CS5#TRPBF from Analog Devices (formerly Linear Technology) is a single, rail-to-rail output precision operational amplifier in a 5-lead TSOT-23 package. It delivers 150μV max input offset voltage, 900pA max input bias current, and 1.1MHz gain-bandwidth product, enabling high-accuracy signal conditioning in low-voltage single-supply systems such as photodiode amplifiers and RTD current sources.

For engineers reviewing the LT1880CS5#TRPBF datasheet, LT1880CS5#TRPBF pinout, LT1880CS5#TRPBF application, or LT1880CS5#TRPBF equivalent, key selection criteria include its picoamp-level input bias current, rail-to-rail output swing within 55mV of V– and 250mV of V+, 1.2mA supply current at 5V, and guaranteed performance over 0°C to 70°C.

Technical Context

The LT1880CS5#TRPBF employs a precision bipolar input stage with on-chip offset trimming and bias current cancellation circuitry, achieving ultralow 900pA max input bias current while maintaining 150μV max input offset voltage. Its rail-to-rail output stage uses complementary emitter-follower architecture to deliver full-swing capability across 2.7V to 36V total supply range.

It operates with single or split supplies and features 116dB min common-mode rejection ratio (CMRR), 110dB min power supply rejection ratio (PSRR), and 0.4V/μs slew rate - balancing precision, speed, and low-power operation without sacrificing DC accuracy.

Key Specifications

Pinout & Package

LT1880CS5#TRPBF is housed in a 5-lead plastic TSOT-23 (S5) package, 1.00mm max height, JEDEC MO-193 compliant, with exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC2050CS5#TRPBF and LT6010ACS5#TRPBF, the LT1880CS5#TRPBF uniquely balances 1.1MHz bandwidth, 0.4V/μs slew rate, and picoamp input bias in a 5-lead SOT-23 - making it the optimal choice for precision analog front-ends requiring both DC accuracy and moderate AC performance without zero-drift artifacts or severe power constraints.

Availability

LT1880CS5#TRPBF is available at Aetrix Electronics and suitable for photodiode amplifiers, RTD current sources, and thermocouple signal conditioners requiring stable component supply and guaranteed 0°C to 70°C operation.

Supply support for LT1880CS5#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 LT1880CS5#TRPBF belongs to Linear's precision op amp product line, designed specifically for low-bias-current, low-offset signal conditioning in space- and power-constrained applications where rail-to-rail output swing is essential.

FAQ

What is the maximum input common-mode voltage range for LT1880CS5#TRPBF?

The LT1880CS5#TRPBF input stage operates with common-mode voltage between V– + 1.0V and V+ – 1.2V. Exceeding this range causes gain collapse but no polarity reversal. For example, with VS = 5V/0V, valid V_CM is 1.0V to 3.8V; with ±15V supplies, it is –14.0V to +13.8V. This limitation does not affect rail-to-rail output functionality in inverting or non-inverting gain configurations.

Does LT1880CS5#TRPBF support capacitive loads, and what is the maximum value?

Yes, the LT1880CS5#TRPBF can drive up to 600pF in unity-gain configuration without instability. Capacitive load capability increases with closed-loop gain - e.g., ≥1000pF is feasible at AV = 10. For loads >600pF at unity gain, adding a small series resistor (e.g., 10–50Ω) between the output and capacitor restores stability, as confirmed in the Capacitive Load Response graph (Figure 1880 G25) of the official datasheet.

What is the thermal performance of LT1880CS5#TRPBF in the TSOT-23 package?

The LT1880CS5#TRPBF in the 5-lead TSOT-23 (S5) package has a junction-to-ambient thermal resistance (θ_JA) of 250°C/W. At 1.2mA supply current and 5V supply, power dissipation is ~6mW, resulting in <1.5°C junction-to-ambient rise under typical PCB conditions. The maximum junction temperature is 150°C, allowing reliable operation up to +85°C ambient when mounted per recommended IPC-compliant solder pad layout.

How does LT1880CS5#TRPBF handle input protection against overvoltage?

The LT1880CS5#TRPBF includes on-chip back-to-back diodes limiting differential input voltage to ±10V. Sustained differential voltages exceeding ±10V require external 1kΩ series resistors per input to limit current to <10mA, preventing damage. Common-mode input voltage must remain within absolute maximum ratings (V+ to V–), and ESD protection meets JEDEC JS-001 Class 2 (2kV HBM).

Is LT1880CS5#TRPBF pin-compatible with other SOT-23 op amps like LT1782 or LT1881?

No, LT1880CS5#TRPBF is not pin-compatible with LT1782 (5-pin, but different pinout: OUT/V+/–IN/+IN/V–) or LT1881 (dual, 8-pin SOIC/MSOP). Its 5-lead TSOT-23 pinout (OUT/V–/+IN/–IN/V+) is unique to the LT1880 family. Substitution requires PCB layout revision. Always verify pin mapping using the "PIN CONFIGURATION" diagram on page 2 of the LT1880 datasheet before design-in.