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

STMicroelectronics TS954IDT

Name: TS954IDT
Brand: STMicroelectronics
SKU: TS954IDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS954IDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TS954IDT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:23,716

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Product details

Overview

TS954IDT from STMicroelectronics is a quad rail-to-rail input/output BiCMOS operational amplifier optimized for 3 V and 5 V operation, featuring 3 MHz gain-bandwidth product, 1 V/µs slew rate, 0.9 mA supply current per amplifier at 3 V, and ±12 V absolute maximum supply rating. It operates across –40 °C to +125 °C and is housed in SO14 package for industrial signal conditioning and active filtering.

For engineers reviewing the TS954IDT datasheet, TS954IDT pinout, TS954IDT application, or TS954IDT equivalent, key selection criteria include rail-to-rail I/O swing, low-power operation at 2.7–12 V, latch-up immunity, and SO14 packaging compatibility with legacy analog layouts.

Technical Context

The TS954IDT implements a BiCMOS process architecture enabling simultaneous rail-to-rail input common-mode range (V_DD – 0.2 V to V_CC + 0.2 V) and rail-to-rail output swing (within 100 mV of rails at 600 Ω load). Its unity-gain stable design achieves 60° phase margin with 100 pF capacitive load.

It delivers 80 dB supply voltage rejection ratio (SVR) and 80 dB common-mode rejection ratio (CMRR) at 25 °C, supporting precision DC-coupled amplification in noisy industrial environments without external trimming.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 12 V - supports single-supply battery-powered and dual-rail industrial systems
Gain-Bandwidth Product	3 MHz - enables stable closed-loop gain up to ~30 at 100 kHz for anti-aliasing filters
Slew Rate	1 V/µs - supports 100 kHz full-scale sine output into 600 Ω without distortion
Input Offset Voltage	6–8 mV max - sufficient for 12-bit DAC buffering without calibration
Supply Current per Amp	0.9–1.4 mA at 25 °C - allows four-channel operation under 6 mA total at 3 V
Output Short-Circuit Current	±10 mA - drives 600 Ω loads and small capacitive loads directly
Operating Temperature	–40 °C to +125 °C - qualified for under-hood automotive and factory-floor industrial use

Pinout & Package

TS954IDT is supplied in SO14 (Small Outline, 14-pin) package with standard 1.27 mm pitch, 8.55–8.75 mm body length, and 3.80–4.00 mm width. Pin 1 is marked by notch or dot; device orientation follows JEDEC MS-012.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting input, Amp 1	Accepts differential signal referenced to non-inverting input (Pin 2); high-impedance BiCMOS node
2	Non-inverting input, Amp 1	DC-biased reference point for Amp 1; supports rail-to-rail common-mode range
3	Output, Amp 1	Delivers rail-to-rail swing into ≥600 Ω; short-circuit protected to ±10 mA
4	V_CC (negative supply)	Ground or negative rail connection; must be ≤0.3 V below V_DD to avoid damage
5	Non-inverting input, Amp 2	Independent input for second amplifier; electrically isolated from Amp 1 inputs
6	Inverting input, Amp 2	Differential pair input for Amp 2; matched bias current to Pin 5
7	Output, Amp 2	Second independent rail-to-rail output; no internal crosstalk with Amp 1/3/4
8	V_DD (positive supply)	Main positive supply rail; powers all four amplifiers simultaneously
9	Output, Amp 3	Third rail-to-rail output; shares V_DD/V_CC pins but has dedicated gain stage
10	Inverting input, Amp 3	High-impedance input for third op-amp; identical electrical specs to Pins 1 and 6
11	Non-inverting input, Amp 3	Reference input for Amp 3; supports same CMVR as other channels
12	Inverting input, Amp 4	Fourth independent input; fully specified for AC/DC performance across temperature
13	Non-inverting input, Amp 4	Final channel input; matches offset drift (2 µV/°C) and noise (25 nV/√Hz) of others
14	Output, Amp 4	Fourth rail-to-rail output; capable of driving 600 Ω load to within 100 mV of rails

Key Features

Feature	Design Value
Rail-to-rail input common-mode range	Extends from V_DD – 0.2 V to V_CC + 0.2 V, enabling direct interfacing with 3.3 V logic and low-voltage sensors
Rail-to-rail output swing	Delivers >98% of rail-to-rail voltage at 600 Ω load, maximizing dynamic range in single-supply systems
Latch-up immunity	Rated for 200 mA injection per pin, preventing destructive latch-up during ESD or transient events
Low power consumption	0.9 mA per amplifier at 3 V allows four-channel operation under 4 mA, extending battery life in portable systems
High-speed capability	3 MHz GBW and 1 V/µs slew rate support audio-frequency filtering and DAC output buffering without phase lag

Applications

Industrial Signal Conditioning

Medical Instrumentation

Use Scenario: Amplifying low-level sensor outputs (e.g., strain gauges, thermocouples) in PLC analog input modules.

IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous signal conditioning for four independent channels with matched DC specs.

Use Value: Rail-to-rail I/O preserves full sensor dynamic range across 0–3.3 V ADC inputs without level-shifting circuitry.

Use Scenario: Buffering and filtering EEG/ECG front-end signals in portable diagnostic devices.

IC Role / Device Role / Timing Role: Configured as 2nd-order Sallen-Key filters and DC-coupled gain stages for biopotential acquisition.

Use Value: 25 nV/√Hz input noise and 0.01% THD ensure clinical-grade signal fidelity at 10 kHz bandwidth.

Digital-to-Analog Converter Buffers

Portable Headphone Drivers

Use Scenario: Driving 12-bit DAC outputs in programmable logic controller (PLC) analog output cards.

IC Role / Device Role / Timing Role: Voltage follower and level-shifter for unipolar/bipolar DAC outputs requiring low output impedance.

Use Value: 600 Ω drive capability and <8 mV offset minimize integral nonlinearity (INL) errors in 12-bit systems.

Use Scenario: Direct-driving 16–32 Ω stereo headphone loads from low-voltage portable audio SoCs.

IC Role / Device Role / Timing Role: Single-supply, rail-to-rail output stage delivering ±1.5 V swing into 32 Ω with minimal external components.

Use Value: 10 mA short-circuit current and 1 V/µs slew rate enable clean 20 Hz–20 kHz response without clipping.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TS954IPT	TSSOP14 package (4.9–5.1 mm × 6.2–6.6 mm), 0.65 mm pitch, thinner profile (1.05 mm max height)	Better PCB space efficiency in dense portable designs; lower thermal resistance (R_thJA = 100 °C/W vs. 103 °C/W)	Select for space-constrained layouts where reflow compatibility with fine-pitch components is required.
LM324DT	Wider supply range (3–32 V), higher input offset (7 mV typ), no rail-to-rail output (1.5 V headroom), 1.2 mA per amp	Legacy industrial control where rail-to-rail swing is not required and higher voltage operation needed	Choose only when existing LM324 footprint reuse is mandatory and performance trade-offs are acceptable.

Compared with TS954IPT, TS954IDT offers superior mechanical robustness and thermal dissipation in SO14; versus LM324DT, it delivers 3× lower distortion, full rail-to-rail swing, and 30% lower quiescent current at 3 V-critical for modern low-voltage signal chains.

Availability

TS954IDT is available at Aetrix Electronics and suitable for industrial signal conditioning, medical instrumentation, DAC buffering, and portable audio applications requiring stable component supply across extended temperature ranges.

Supply support for TS954IDT 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, MEMS, and power devices for industrial, automotive, and consumer markets.

The TS95x family targets low-voltage, low-power analog signal processing-specifically engineered for 3 V/5 V battery-powered and energy-efficient industrial systems needing rail-to-rail precision without performance compromise.

FAQ

What is the maximum capacitive load the TS954IDT can drive without instability?

The TS954IDT is unity-gain stable with a minimum phase margin of 60° when driving up to 100 pF capacitive load, as verified in the datasheet's Figure 3 (voltage gain vs. frequency) and Table 3 test conditions. For loads exceeding 100 pF, a series resistor (≥100 Ω) between output and capacitance is required to maintain stability.

Does TS954IDT support true dual-supply operation with split rails?

Yes-TS954IDT supports dual-supply operation with V_DD as positive rail and V_CC as negative rail (e.g., ±2.5 V or ±5 V), provided the total differential supply does not exceed 14 V and each rail stays within absolute maximum ratings (V_CC ≥ –14 V, V_DD ≤ +14 V). Common-mode input range extends 0.2 V beyond each rail.

Is the TS954IDT pin-compatible with legacy SO14 quad op-amps like LM324?

No-TS954IDT uses a different pinout: Pin 4 is V_CC (negative supply), Pin 8 is V_DD (positive supply), and all four amplifier inputs/outputs are arranged sequentially. LM324 places V_CC on Pin 4 and V_DD on Pin 11, making direct replacement impossible without PCB redesign.

What is the typical input bias current at 125 °C ambient temperature?

Per Table 3 and Table 4 of the datasheet, input bias current (I_ib) increases with temperature: at 125 °C, it reaches a maximum of 200 nA per amplifier (typical 100 nA), measured with V_icm = V_CC/2. This remains well below 1 µA, preserving high-impedance sensor interface integrity even at maximum operating temperature.

TS954IDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 1V/µs

Gain Bandwidth Product:: 3 MHz

-3db Bandwidth:: -

Current - Input Bias:: 35 nA

Voltage - Input Offset:: 6 mV

Current - Supply:: 950µA (x4 Channels)

Current - Output / Channel:: 10 mA

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 12 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

TS954IDT FAQ

1.How can I place an order for TS954IDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS954IDT 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 TS954IDT reliable?

The price and inventory of TS954IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS954IDT is usually 5 days.

3.What payment methods are accepted for TS954IDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS954IDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS954IDT?

TS954IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS954IDT 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 TS954IDT?

For technical support, including TS954IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS954IDT requirements.

6.How does Aetrix verify that TS954IDT is sourced from the original manufacturer or authorized distributors?

All TS954IDT 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 TS954IDT meets industry standards.

7.What is the process for return or replacement of TS954IDT?

All TS954IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS954IDT, 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 TS954IDT part is unused and in its original packaging.

Return procedure for TS954IDT:

1.Submit a request within 90 days.

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

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