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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TSV991IYLT

Name: TSV991IYLT
Brand: STMicroelectronics
SKU: TSV991IYLT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSV991IYLT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: SC-74A, SOT-753

Datasheet:: TSV991IYLT.pdf

Description:: IC OPAMP GP 1 CIRCUIT SOT23-5

Quantity:: RFQ Add To RFQ list

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Inventory:21,167

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Product details

Overview

TSV991IYLT from STMicroelectronics is a single, rail-to-rail input/output operational amplifier optimized for automotive-grade applications (AEC-Q100 qualified), featuring 20 MHz gain-bandwidth, 1.5 mV max input offset voltage (A grade), 820 µA typical supply current, and operation from 2.5 V to 5.5 V. It delivers 35 mA output drive and supports stable operation at gains ≥ 4 or ≤ –3 - used in battery-powered sensor interfaces and medical signal conditioning circuits.

For engineers reviewing the TSV991IYLT datasheet, TSV991IYLT pinout, TSV991IYLT application, or TSV991IYLT equivalent, key selection considerations include its AEC-Q100 qualification, rail-to-rail I/O capability, minimum stable gain requirement (≥4 or ≤–3), ultra-low input bias current (1 pA typ.), and suitability for low-voltage, high-precision analog front-ends in harsh environments.

Technical Context

The TSV991IYLT employs a voltage-feedback architecture with internal compensation tailored for non-unity-gain stability - requiring minimum closed-loop gain of +4 (non-inverting) or –3 (inverting) to ensure ≥45° phase margin with 100 pF capacitive load. Its input stage uses complementary bipolar transistors enabling rail-to-rail common-mode range (VCC– –0.1 V to VCC+ +0.1 V) and ultra-low input bias current (1 pA typ.).

Output stage is class AB with symmetrical sourcing/sinking capability (35 mA typ.), supporting rail-to-rail swing into 600 Ω loads. The device integrates ESD protection ≥5 kV HBM and operates across –40 °C to +125 °C, meeting automotive temperature and reliability requirements without external compensation.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain-bandwidth product	20 MHz - enables accurate amplification of signals up to ~3 MHz at gain = 6 (e.g., sensor signal conditioning with anti-alias filtering).
Input offset voltage (max)	1.5 mV - ensures ≤0.3% error in 500 mV full-scale measurements without trimming (A grade, automotive temp range).
Supply current (typ.)	820 µA - allows continuous operation >1 year on a 200 mAh coin cell in portable diagnostic devices.
Input bias current (typ.)	1 pA - minimizes voltage error across high-impedance sources (e.g., pH electrodes, piezoelectric sensors).
Output drive (min)	32 mA - drives 10-bit SAR ADC reference buffers or 50 Ω transmission lines directly without external buffer.
Common-mode input range	VCC– –0.1 V to VCC+ +0.1 V - accepts ground-referenced or rail-swinging inputs in single-supply systems.
Slew rate	10 V/µs - supports 1 Vpp signals up to ~1.6 MHz without distortion in active filter stages.

Pinout & Package

SOT23-5 package: 5-pin surface-mount, 2.9 mm × 1.6 mm footprint, exposed pad not internally connected (may be grounded or left floating per layout needs). Thermal resistance R_thJA = 250 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
1 (IN–)	Inverting input	High-impedance node accepting feedback or signal inversion; requires matched trace length to IN+ for noise rejection.
2 (IN+)	Non-inverting input	Rail-to-rail CMVR enables direct connection to resistive sensor bridges or DAC outputs without level-shifting.
3 (VCC–)	Negative supply	Ground reference for single-supply operation; decoupling capacitor (10 nF) must be placed within 2 mm.
4 (OUT)	Amplifier output	Capable of ±32 mA drive; series resistor recommended for unity-gain follower configurations to ensure stability.
5 (VCC+)	Positive supply	Accepts 2.5–5.5 V; internal ESD diodes clamp to rails - avoid exceeding 6 V absolute max rating.

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Validated for –40 °C to +125 °C operation with extended life testing - suitable for engine control, ADAS sensor nodes, and body electronics.
Rail-to-rail input and output	Enables full dynamic range utilization in 3.3 V or 5 V single-supply systems - eliminates need for dual supplies in portable medical monitors.
Stable at gain ≥ 4 or ≤ –3	Reduces external compensation components vs. unity-gain stable op-amps - lowers BOM count in precision gain blocks.
Ultra-low input bias current (1 pA typ.)	Preserves signal integrity from high-Z sources (e.g., photodiode transimpedance amps) without guard rings or leakage mitigation.
20 MHz GBP with 820 µA quiescent current	Delivers 24.4 kHz/MHz efficiency - outperforms legacy rail-to-rail op-amps by >3× in speed/power ratio for battery-constrained designs.

Applications

Automotive Cabin Sensors

Portable ECG Front-End

Use Scenario: Amplifying low-level thermistor and humidity sensor outputs in HVAC control modules under wide temperature and vibration conditions.

IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail I/O, rejecting common-mode noise from 12 V vehicle power rails.

Use Value: AEC-Q100 qualification ensures long-term reliability; 1.5 mV V_os max avoids calibration drift over lifetime; 820 µA I_CC extends module battery backup runtime.

Use Scenario: Buffering and amplifying microvolt-level biopotential signals from dry-electrode ECG leads in handheld diagnostic devices.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with ultra-low input bias current and high CMRR (75 dB min).

Use Value: 1 pA I_ib prevents electrode polarization errors; rail-to-rail output drives 12-bit SAR ADC directly; 20 MHz GBP supports fast-settling anti-alias filtering.

Industrial Battery Monitor

Smart Smoke Detector Signal Chain

Use Scenario: Measuring cell voltage and temperature in 4S Li-ion battery packs for UPS and energy storage systems.

IC Role / Device Role / Timing Role: High-impedance differential voltage monitor with programmable gain, operating from 2.5 V supply during deep discharge.

Use Value: 2.5 V minimum supply enables operation down to 2.7 V pack voltage; 35 mA output drives multiplexer switches; –40 °C to +125 °C range covers enclosure thermal extremes.

Use Scenario: Conditioning photoelectric smoke chamber signals in UL-certified residential detectors with 10-year battery life.

IC Role / Device Role / Timing Role: Low-power transimpedance amplifier converting photocurrent to voltage, followed by active low-pass filtering.

Use Value: 820 µA I_CC contributes <0.5% of total system standby current; 20 MHz GBP allows sharp 10 Hz cutoff without phase lag; ESD ≥5 kV protects against assembly handling damage.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision, low-power op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSV911ILT	8 MHz GBP, unity-gain stable, 550 µA I_CC, same SOT23-5 package	Lacks AEC-Q100 qualification; lower bandwidth limits use in fast-settling filters	Select when unity-gain stability is mandatory and automotive qualification is unnecessary.
MCP6001T-E/OT	1 MHz GBP, rail-to-rail I/O, 100 µA I_CC, 2.7–5.5 V supply, SO-8/SOT23-5	No AEC-Q100 rating; higher V_os (2.5 mV max); lower drive (17 mA)	Choose for ultra-low-power, cost-sensitive consumer applications where 20 MHz performance is not required.

Compared with TSV911ILT and MCP6001T-E/OT, the TSV991IYLT uniquely combines AEC-Q100 qualification, 20 MHz bandwidth, and rail-to-rail operation - making it the only option among the three suitable for automotive sensor signal chains requiring both precision and speed under extended temperature stress.

Availability

TSV991IYLT is available at Aetrix Electronics and suitable for automotive cabin sensors, portable ECG front-ends, and industrial battery monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV991IYLT 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, analog ICs, power management devices, and MEMS sensors for industrial, automotive, and consumer markets.

The TSV99x family belongs to ST's precision analog portfolio, engineered specifically for high-accuracy, low-power signal conditioning in automotive and portable medical applications - emphasizing rail-to-rail operation, AEC-Q100 compliance, and optimized speed/power trade-offs.

FAQ

Is the TSV991IYLT unity-gain stable?

No. The TSV991IYLT is not unity-gain stable and requires a minimum closed-loop gain of +4 (non-inverting) or –3 (inverting) for stable operation with ≥45° phase margin. For unity-gain applications, a small series resistor (e.g., 10–50 Ω) at the output is recommended, and stability must be verified via bench testing and simulation using ST's macromodel.

What does the 'Y' suffix in TSV991IYLT indicate?

Per STMicroelectronics' ordering nomenclature, the 'Y' in TSV991IYLT denotes automotive-grade qualification - specifically AEC-Q100 Grade 1 (–40 °C to +125 °C ambient), advanced screening per AEC-Q001/Q002, and moisture sensitivity level 1 (MSL1) for the SOT23-5 package. This distinguishes it from commercial-grade variants like TSV991ILT.

Can the exposed pad on the DFN8 package be connected to ground?

The exposed pad on the DFN8 2×2 package (used in related variants like TSV991IQ2T) is not internally connected to any die node. It may be soldered to a ground plane for improved thermal dissipation (R_thJA = 57 °C/W) or left floating - no electrical connection is required. ST recommends grounding it for automotive applications to enhance thermal reliability.

How does the input offset voltage drift affect long-term accuracy?

The TSV991IYLT exhibits ∆V_io/∆T = 2 µV/°C (typ.), meaning over a 100 °C temperature span (–40 °C to +60 °C), offset drift contributes ≤200 µV additional error. Combined with its 1.5 mV max initial offset, total worst-case DC error remains under 1.7 mV - sufficient for 12-bit systems with ≥2 V full-scale range without auto-zeroing.

TSV991IYLT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 1

Output Type:: Rail-to-Rail

Slew Rate:: 10V/µs

Gain Bandwidth Product:: 20 MHz

-3db Bandwidth:: -

Current - Input Bias:: 1 pA

Voltage - Input Offset:: 100 µV

Current - Supply:: 820µA

Current - Output / Channel:: 35 mA

Voltage - Supply Span (Min):: 2.5 V

Voltage - Supply Span (Max):: 5.5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-5

TSV991IYLT FAQ

1.How can I place an order for TSV991IYLT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSV991IYLT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TSV991IYLT reliable?

The price and inventory of TSV991IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV991IYLT is usually 5 days.

3.What payment methods are accepted for TSV991IYLT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV991IYLT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSV991IYLT?

TSV991IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSV991IYLT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TSV991IYLT?

For technical support, including TSV991IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV991IYLT requirements.

6.How does Aetrix verify that TSV991IYLT is sourced from the original manufacturer or authorized distributors?

All TSV991IYLT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSV991IYLT meets industry standards.

7.What is the process for return or replacement of TSV991IYLT?

All TSV991IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSV991IYLT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TSV991IYLT part is unused and in its original packaging.

Return procedure for TSV991IYLT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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