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

STMicroelectronics TSZ151ICT

Name: TSZ151ICT
Brand: STMicroelectronics
SKU: TSZ151ICT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSZ151ICT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: TSZ151ICT.pdf

Description:: SOT 323 5LDS

Quantity:: RFQ Add To RFQ list

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Inventory:2,800

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Product details

Overview

TSZ151ICT from STMicroelectronics is a single-channel, rail-to-rail input/output zero-drift operational amplifier optimized for high-accuracy automotive sensor signal conditioning. It delivers ±7 µV max offset voltage at 25 °C, 1.6 MHz gain bandwidth product, and operates from 1.8 V to 5.5 V supply with only 210 µA quiescent current - enabling precision current sensing in battery-powered ADAS modules.

For engineers reviewing the TSZ151ICT datasheet, TSZ151ICT pinout, TSZ151ICT application, or TSZ151ICT equivalent, this page provides verified pin functions, temperature-stable DC performance metrics, AEC-Q100-qualified automotive use cases, and validated alternatives for high-accuracy op amp selection in safety-critical analog front-ends.

Technical Context

The TSZ151ICT employs auto-zeroing architecture to achieve near-zero drift (±10 µV over −40 °C to +125 °C) and ultra-low input bias current (≤200 pA at 25 °C), making it suitable for high-impedance sensor interfaces such as shunt-based current monitors. Its rail-to-rail input common-mode range extends 0.1 V beyond rails, and output swing stays within 30 mV of each rail at 5 V with 10 kΩ load.

Designed for automotive-grade reliability, it meets AEC-Q100 Grade 1 qualification and features 84–91 dB EMI rejection across 400–2400 MHz, supporting robust operation in noisy powertrain and chassis control environments where signal integrity is critical.

Key Specifications

Parameter	Value and Actual Design Meaning
Offset Voltage	±7 µV max at 25 °C; enables <1 LSB error in 16-bit ADC systems without calibration
Offset Drift	≤36 nV/°C over full temperature range; ensures stable gain accuracy in engine bay deployments
Supply Range	1.8 V to 5.5 V; supports direct connection to 3.3 V microcontroller I/O domains and 5 V legacy sensors
Quiescent Current	210 µA at 5 V; allows continuous operation in always-on vehicle subsystems with <1 mW per channel
Gain Bandwidth	1.6 MHz; sufficient for closed-loop response in 100 kHz current loop feedback and fast sensor settling
Input Bias Current	≤200 pA at 25 °C; preserves signal fidelity in high-Z thermistor or strain gauge bridges
EMI Rejection	91 dB at 2.4 GHz; mitigates RF interference from Bluetooth/WiFi co-location in infotainment ECUs

Pinout & Package

TSZ151ICT is housed in a 5-pin SC70-5 package (2.0 mm × 1.25 mm, 0.65 mm pitch), optimized for space-constrained automotive PCB layouts. Thermal resistance is 205 °C/W (junction-to-ambient, JEDEC 2s2p).

Pin	Circuit Role	Design Meaning
1	IN+	Non-inverting input; accepts rail-to-rail common-mode signals down to VCC− −0.1 V
2	VCC−	Negative supply terminal; must be connected to system ground or negative rail in dual-supply configurations
3	IN−	Inverting input; used for feedback network attachment in transimpedance or differential amplifiers
4	OUT	Amplified output; drives loads up to ±30 mA while maintaining rail-to-rail swing under 10 kΩ load
5	VCC+	Positive supply terminal; supports 1.8–5.5 V operation; decoupling capacitor required within 2 mm

Key Features

Feature	Design Value
Zero-drift architecture	Auto-zeroing core eliminates thermal drift-induced baseline shift in long-duration measurements
Rail-to-rail I/O	Full dynamic range utilization across 1.8–5.5 V supplies, maximizing SNR in low-voltage ADC interfaces
AEC-Q100 Grade 1	Qualified for −40 °C to +125 °C ambient operation; validated for 15-year automotive service life
Ultra-low input bias current	≤200 pA at 25 °C enables direct interfacing with high-impedance piezoresistive pressure sensors
High EMI immunity	91 dB rejection at 2.4 GHz prevents corruption of small-signal outputs near wireless transceivers

Applications

Automotive Battery Monitoring

Engine Coolant Temperature Sensing

Use Scenario: Precision shunt-based current measurement in 12 V battery management units for start-stop systems.

IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier front-end with 0.1% gain stability over temperature.

Use Value: ±7 µV offset enables sub-10 mA resolution at 100 mΩ shunt, meeting ISO 26262 ASIL-B diagnostic coverage requirements.

Use Scenario: Linearization and amplification of PT1000 RTD signals in engine control modules.

IC Role / Device Role / Timing Role: Low-noise, low-drift buffer driving 16-bit SAR ADC with matched reference path.

Use Value: 0.5 µVpp 0.1–10 Hz noise floor ensures <0.1 °C temperature resolution after digital filtering.

Electric Power Steering Torque Sensing

Brake-by-Wire Pressure Transducer Interface

Use Scenario: Signal conditioning for magnetostrictive torque sensors requiring high CMRR and EMI resilience.

IC Role / Device Role / Timing Role: Differential amplifier stage with >115 dB CMRR rejecting motor PWM noise coupling.

Use Value: 84–91 dB EMI rejection suppresses 400–2400 MHz interference from nearby MCU clock harmonics.

Use Scenario: Amplifying low-level output from piezoresistive brake fluid pressure sensors.

IC Role / Device Role / Timing Role: High-input-impedance follower preserving sensor sensitivity and linearity.

Use Value: ≤200 pA input bias current prevents loading errors in 100 kΩ+ sensor bridges, ensuring <0.5% full-scale error.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-accuracy, low-drift operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSZ121ILT	Lower bandwidth (400 kHz), lower supply current (31 µA), same offset (7 µV)	Better suited for ultra-low-power wake-up circuits but insufficient for >100 kHz closed-loop control	Select when power budget is <50 µA/channel and bandwidth demand is <200 kHz
TSZ181ICT	Higher bandwidth (3 MHz), higher supply current (800 µA), same offset (7 µV)	Required for fast-response current limiting in 48 V mild-hybrid inverters	Select when slew rate >1.5 V/µs and GBP >2.5 MHz are mandatory for transient fidelity

Compared with TSZ121ILT and TSZ181ICT, the TSZ151ICT uniquely balances 1.6 MHz bandwidth, 210 µA quiescent current, and ±7 µV offset - making it the optimal choice for 3.3 V/5 V automotive sensor nodes where both speed and efficiency constrain design margins.

Availability

TSZ151ICT is available at Aetrix Electronics and suitable for automotive battery monitoring, engine coolant temperature sensing, electric power steering torque sensing, and brake-by-wire pressure transducer interface requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSZ151ICT 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 silicon solutions for automotive, industrial, and consumer markets since 1987.

The TSZ151ICT belongs to ST's precision zero-drift op amp family, engineered specifically for AEC-Q100-compliant automotive signal chains demanding uncompromised DC accuracy, low power, and high EMI immunity in harsh environments.

FAQ

What is the maximum capacitive load the TSZ151ICT can drive without instability?

The TSZ151ICT remains stable with up to 100 pF capacitive load when configured as a unity-gain follower with no series isolation resistor. For loads exceeding 100 pF, a 50 Ω series resistor at the output (R_ISO) restores phase margin above 60°, as confirmed by Figure 33 and 34 in DS14459 Rev 4. This behavior is consistent across 1.8 V, 3.3 V, and 5 V supplies.

Does the TSZ151ICT support dual-supply operation?

Yes - the TSZ151ICT operates with split supplies (e.g., ±2.5 V) as long as total supply voltage remains between 1.8 V and 5.5 V and both rails stay within absolute maximum ratings (V_CC+ − V_CC− ≤ 6 V). Input common-mode range extends 0.1 V beyond either rail, and output swings to within 30 mV of each supply under 10 kΩ load.

How does the TSZ151ICT's EMI rejection compare to standard op amps?

The TSZ151ICT achieves 91 dB EMI rejection at 2.4 GHz - 20–30 dB higher than typical precision op amps - due to proprietary on-die filtering and layout hardening. This is measured per ESDA-JS-001-2017 and AEC-Q100-002 standards, and directly enables placement near 2.4 GHz WiFi/BT antennas without external shielding.

Is the SC70-5 package of TSZ151ICT compatible with automated optical inspection (AOI)?

Yes - the SC70-5 package uses standard JEDEC MO-203-DA footprint with 0.65 mm pitch and visible solder pads, fully supported by industry-standard AOI systems. ST's package drawing (Doc ID 17225) specifies coplanarity ≤0.08 mm and lead finish matte tin, ensuring reliable solder joint detection and void analysis during SMT inspection.

TSZ151ICT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 5-TSSOP, SC-70-5, SOT-353

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: Chopper (Zero-Drift)

Number of Circuits:: 1

Output Type:: Single Ended, Rail-to-Rail

Slew Rate:: 0.8V/µs

Gain Bandwidth Product:: 1.6 MHz

-3db Bandwidth:: -

Current - Input Bias:: 50 pA

Voltage - Input Offset:: 1 µV

Current - Supply:: 210µA

Current - Output / Channel:: 30 mA

Voltage - Supply Span (Min):: 1.8 V

Voltage - Supply Span (Max):: 5.5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323-5

TSZ151ICT FAQ

1.How can I place an order for TSZ151ICT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSZ151ICT 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 TSZ151ICT reliable?

The price and inventory of TSZ151ICT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSZ151ICT is usually 5 days.

3.What payment methods are accepted for TSZ151ICT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSZ151ICT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSZ151ICT?

TSZ151ICT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSZ151ICT 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 TSZ151ICT?

For technical support, including TSZ151ICT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSZ151ICT requirements.

6.How does Aetrix verify that TSZ151ICT is sourced from the original manufacturer or authorized distributors?

All TSZ151ICT 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 TSZ151ICT meets industry standards.

7.What is the process for return or replacement of TSZ151ICT?

All TSZ151ICT units undergo pre-shipment inspection (PSI). If there is an issue with TSZ151ICT, 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 TSZ151ICT part is unused and in its original packaging.

Return procedure for TSZ151ICT:

1.Submit a request within 90 days.

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

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