UMW TSV634IPT

Overview

TSV634IPT from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for ultra-low-power, low-voltage operation (1.5 V to 5.5 V), delivering 880 kHz gain-bandwidth product at just 60 µA per channel (typ. at 5 V), with 1 pA typical input bias current and 800 µV max offset voltage (A version), widely deployed in battery-powered sensor signal conditioning circuits.

For engineers reviewing the TSV634IPT datasheet, TSV634IPT pinout, TSV634IPT application, or TSV634IPT equivalent, key selection considerations include shutdown capability (SHDN pin), EMI hardening (61–92 dB EMIRR across 400–2400 MHz), rail-to-rail I/O swing within 35 mV of rails, and guaranteed stability driving up to 100 pF capacitive loads.

Technical Context

The TSV634IPT implements dual complementary PMOS/NMOS input stages enabling true rail-to-rail input common-mode range (V_CC− − 0.1 V to V_CC+ + 0.1 V) without phase reversal, with transition at V_CC+ − 0.7 V. Its output stage delivers ±40 mA sink/source drive into resistive loads while maintaining <35 mV saturation voltage at 10 kΩ.

It integrates a dedicated SHDN pin controlling all four amplifiers simultaneously, enabling 5 nA typ. shutdown current (at 5 V), 200 ns turn-on time, and high-impedance output state - critical for power-gated sensor front-ends in portable medical devices.

Key Specifications

Pinout & Package

TSV634IPT is supplied in a MiniSO10 (SO-10) package - 10-pin, 3.9 mm × 4.9 mm, 0.65 mm pitch, exposed pad for thermal enhancement. Pin numbering follows standard SOIC convention with pin 1 marked by notch or dot.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad rail-to-rail low-power op-amp applications.

Compared with TSV634IPT, TSV634IST offers identical performance in a functionally equivalent package variant, while MCP6004-E/SL trades off precision, power efficiency, and shutdown capability for broader availability and lower unit cost in non-automotive applications.

Availability

TSV634IPT is available at Aetrix Electronics and suitable for battery-powered medical devices, industrial sensor transmitters, and automotive cabin electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV634IPT 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 TSV63x series belongs to ST's precision low-power op-amp product line, engineered specifically for energy-constrained, high-accuracy signal conditioning in battery-operated and automotive-grade systems.

FAQ

Does TSV634IPT support true rail-to-rail input at 1.5 V supply?

Yes. The datasheet guarantees rail-to-rail input common-mode range from V_CC− − 0.1 V to V_CC+ + 0.1 V across the full 1.5–5.5 V supply range, validated at 1.5 V in Table 3 and Figure 16. Performance metrics including CMRR and V_os remain within spec at this minimum voltage.

What is the maximum capacitive load the TSV634IPT can drive without external compensation?

The TSV634IPT is unity-gain stable driving up to 100 pF capacitive load, as confirmed in Section 4.6 and Table 4 (GBP test condition). Driving >100 pF requires a series resistor (e.g., 10–100 Ω) between output and load, with stability verified via bench testing and simulation using ST's provided macromodel.

Is the SHDN pin 5 V tolerant when V_CC+ = 3.3 V?

No. The SHDN pin logic thresholds scale with V_CC+: VIH = 0.7 × V_CC+ min (2.3 V at 3.3 V), VIL = 0.3 × V_CC+ max (1.0 V). Applying 5 V to SHDN with 3.3 V supply exceeds absolute maximum rating (V_SHDN ≤ V_CC+ + 0.2 V), risking latch-up or damage.

How does the TSV634IPT's EMI hardening perform at 2.4 GHz (Wi-Fi/Bluetooth bands)?

Per Table 7 and Figure 15, the TSV634IPT achieves 83 dB EMIRR at 2400 MHz - meaning a 100 mV_rms RF signal induces only 14 nV_peak input offset shift. This prevents baseline wander and false triggers in Bluetooth-connected medical sensors operating in noisy 2.4 GHz ISM environments.