STMicroelectronics TSV714IQ4T

Overview

TSV714IQ4T from STMicroelectronics is a quad rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, high-accuracy signal conditioning in battery-powered systems. It delivers 200 µV max input offset voltage, 14 µA supply current per channel at 5 V, 150 kHz gain bandwidth, and operates from 1.5 V to 5.5 V across –40 °C to +125 °C - enabling precision sensor front-ends in portable medical devices.

For engineers reviewing the TSV714IQ4T datasheet, TSV714IQ4T pinout, TSV714IQ4T application, or TSV714IQ4T equivalent, key selection criteria include micropower operation under 15 µA/channel, guaranteed rail-to-rail I/O performance at 1.5 V supply, EMI-hardened architecture (400–2400 MHz), and QFN16 3×3 package compatibility with space-constrained PCB layouts.

Technical Context

The TSV714IQ4T implements a proprietary CMOS input stage with 1 pA typical input bias current and internal differential voltage limiting (±0.5 V clamp), ensuring robustness against input overvoltage transients. Its rail-to-rail input extends from V_CC– – 0.1 V to V_CC+ + 0.1 V, while rail-to-rail output drives within 40 mV of V_CC+ and 75 mV of V_CC– under 10 kΩ load.

It features a 150 kHz gain-bandwidth product with 45° phase margin and 19 dB gain margin, supporting stable unity-gain configurations. The device includes on-chip trimming for initial offset calibration and a defined initialization time (5 ms typ. at 25 °C) during power-up before full specification compliance.

Key Specifications

Pinout & Package

The TSV714IQ4T is housed in a 3 mm × 3 mm QFN16 package with exposed thermal pad (EP), rated for 45 °C/W junction-to-ambient thermal resistance. Pin 1 is marked by a dot; the EP may be connected to V_CC– or left floating per layout requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar micropower, rail-to-rail op-amp applications.

Compared with TSV714IQ4T, the TSV734IQ4T trades micropower efficiency for bandwidth headroom, while the LMV984MT/NOPB sacrifices accuracy and low-voltage capability for broader distributor availability - making TSV714IQ4T optimal for long-life, high-precision, single-supply sensor systems.

Availability

TSV714IQ4T is available at Aetrix Electronics and suitable for battery-powered medical devices, portable instrumentation, industrial sensor nodes, and smart home safety systems requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TSV714IQ4T 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 analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The TSV71x series was developed specifically for ultra-low-power, high-accuracy signal conditioning in space- and energy-constrained applications - emphasizing rail-to-rail operation down to 1.5 V and robustness in noisy, thermally variable environments.

FAQ

What is the maximum capacitive load the TSV714IQ4T can drive stably?

The TSV714IQ4T maintains phase margin ≥45° with up to 100 pF capacitive load when configured as a unity-gain buffer (Figure 13). Driving >100 pF requires isolation resistor (≥100 Ω) between output and load to prevent peaking or oscillation - verified across –40 °C to +125 °C and 1.5–5.5 V supply range.

Does the QFN16 package require solder paste stencil aperture reduction for the exposed pad?

Yes. STMicroelectronics recommends a 70–80% area ratio for the EP stencil aperture (e.g., 2.4 mm × 2.4 mm opening for 3 mm × 3 mm pad) to prevent voiding and ensure thermal reliability. IPC-7525 guidelines apply; reflow profile must achieve minimum 235 °C peak for SnPb-free solder.

Can the TSV714IQ4T operate with V_CC+ = 1.5 V and V_CC– = 0 V while maintaining rail-to-rail output swing?

Yes. At 1.5 V supply, output swings to within 40 mV of V_CC+ and 75 mV of V_CC– under 10 kΩ load (Section 4.3), delivering >90% of full-scale range. Input common-mode range extends from –0.1 V to +1.6 V, enabling direct connection to 0–1.5 V sensor outputs without level shifters.

Is the 200 µV input offset voltage specified at 25 °C only, or guaranteed across temperature?

The 200 µV is a maximum at 25 °C; over –40 °C to +125 °C, max V_io rises to 1200 µV (Table 3–5). However, ΔV_io/ΔT is limited to 10 µV/°C, allowing predictable drift compensation in firmware - critical for uncalibrated medical or industrial measurements.