STMicroelectronics TS1874IYPT

Overview

TS1874IYPT from STMicroelectronics is a quad-channel, rail-to-rail input/output operational amplifier optimized for low-voltage, low-power portable systems. It operates from 1.8 V to 6 V supply, delivers 1.6 MHz gain bandwidth, consumes 400 µA per channel, and supports rail-to-rail output swing within 100 mV of each rail into 600 Ω - enabling use in headphone driver stages and battery-powered sensor interfaces.

For engineers reviewing the TS1874IYPT datasheet, TS1874IYPT pinout, TS1874IYPT application, or TS1874IYPT equivalent, key selection criteria include its extended common-mode input range (V_CC− − 0.2 V to V_CC+ + 0.2 V), high output drive (65 mA typical), AEC-Q100 qualified automotive grade rating, and TSSOP14 package compatibility with space-constrained PCB layouts.

Technical Context

The TS1874IYPT implements a CMOS input stage with rail-to-rail input common-mode range exceeding supply rails by ±200 mV at 25 °C, and rail-to-rail output stage capable of sourcing/sinking ≥60 mA while maintaining <100 mV headroom to V_CC+ and V_CC− under 600 Ω load. Its unity-gain stable architecture ensures phase margin ≥53° with 100 pF capacitive load.

It features low input bias current (max 150 nA), low input offset voltage (max 6 mV over temperature), and high PSRR (90 dB typical at 5 V) - making it suitable for precision DC-coupled signal conditioning in single-supply microcontroller peripheral interfaces and analog front-ends where supply rejection and offset stability are critical.

Key Specifications

Pinout & Package

TSSOP14 package: 4.9 mm × 6.4 mm body, 0.65 mm pitch, 14-pin thin shrink small outline package with exposed thermal pad (not electrically connected). RoHS-compliant, ECOPACK®2 qualified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.

Compared with TS1874IYPT, TS1874IPT omits automotive screening but matches performance in industrial settings, while MCP6004-E/ST trades bandwidth, drive strength, and input range for lower unit cost and tighter offset distribution - requiring design trade-offs in signal fidelity and load capability.

Availability

TS1874IYPT is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical monitors, battery-powered audio equipment, and industrial handheld test instruments requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS1874IYPT 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, analog components, and MEMS sensors for industrial, automotive, and consumer markets.

The TS187x family was developed specifically for ultra-low-voltage, low-power analog signal conditioning in battery-operated and space-constrained systems - emphasizing rail-to-rail operation, extended input range, and robustness in portable and automotive environments.

FAQ

What is the maximum output current capability of TS1874IYPT per channel?

The TS1874IYPT delivers 65 mA typical output source/sink current per channel at 25 °C with V_CC = 5 V, as measured with V_O = V_CC− (source) or V_O = V_CC+ (sink) and 100 mV differential input. Minimum guaranteed output current is 20 mA across −40 °C to +105 °C ambient, supporting reliable operation into 150 Ω loads such as miniature speakers or LED drivers.

Does TS1874IYPT require external compensation for unity-gain stability?

No external compensation is required. The TS1874IYPT is internally compensated for unity-gain stability, with ≥53° phase margin verified at 100 pF capacitive load and 1.8–5 V supply. This allows direct use in voltage-follower, inverting, and non-inverting configurations without added resistors or capacitors - simplifying layout and reducing BOM count in space-constrained designs.

Can TS1874IYPT operate with a 1.8 V single supply and still achieve rail-to-rail output swing?

Yes. At V_CC+ = 1.8 V and V_CC− = 0 V, the TS1874IYPT achieves rail-to-rail output swing within 100 mV of both rails into a 600 Ω load, delivering 1.62–1.77 V_OH and 30–100 mV_OL. This enables full utilization of the 1.8 V supply for analog signal chains in energy-harvesting or coin-cell-powered devices without dynamic range loss.

What is the thermal resistance (R_thJA) of the TSSOP14 package for TS1874IYPT?

The TSSOP14 package has a junction-to-ambient thermal resistance (R_thJA) of 100 °C/W under standard JEDEC 2-layer board conditions (1 in² copper, 2 oz). With its 400 µA per channel supply current, the device dissipates ≤0.6 mW per amplifier at 1.8 V, resulting in <0.25 °C junction-to-ambient rise - eliminating need for heatsinking in typical applications.