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

STMicroelectronics TS912IN

Name: TS912IN
Brand: STMicroelectronics
SKU: TS912IN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS912IN

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-DIP (0.300", 7.62mm)

Datasheet:: TS912IN.pdf

Description:: IC CMOS 2 CIRCUIT 8MINI DIP

Quantity:: RFQ Add To RFQ list

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Inventory:4,415

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Product details

Overview

TS912IN from STMicroelectronics is a rail-to-rail input/output CMOS dual operational amplifier operating from 2.7 V to 16 V single supply (or ±13.5 V dual supply), delivering 200 μA/amplifier supply current at 3 V, 2 mV max input offset voltage (TS912B grade), and 1 pA typical input bias current. It drives 600 Ω loads with rail-to-rail output swing within 40 mV of rails and supports precision sensor signal conditioning in industrial temperature range (−40 °C to +125 °C).

For engineers reviewing the TS912IN datasheet, TS912IN pinout, TS912IN application, or TS912IN equivalent, this page provides verified pin functions, real-world load-driving capability (600 Ω/100 Ω), rail-to-rail I/O behavior, low-noise (30 nV/√Hz) performance, and validated alternatives for low-power precision dual op-amp selection.

Technical Context

The TS912IN implements a CMOS input stage with 1 pA typical bias current and rail-to-rail common-mode input range (V_CC− −0.2 V to V_CC+ +0.2 V). Its output stage delivers 40 mA sink/source current (at 3 V) with internal current limiting, enabling direct drive of moderate loads without external buffers.

It features 0.8–1.4 MHz gain-bandwidth product (dependent on supply and load), 30–40° phase margin, and 0.3–1.3 V/μs slew rate (depending on supply and signal swing), optimized for stability with capacitive loads up to 100 pF and resistive loads down to 100 Ω.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 16 V single supply - supports battery-powered and wide-input industrial systems without level-shifting.
Input Offset Voltage (max)	2 mV (TS912B grade) - enables accurate DC-coupled amplification in 12-bit ADC front-ends.
Input Bias Current (typ)	1 pA - preserves high-impedance sensor node integrity (e.g., pH electrodes, photodiodes).
Supply Current per Amp	200 μA at V_CC = 3 V - allows dual-channel operation in ultra-low-power portable instrumentation.
Output Swing (RL = 600 Ω)	V_CC− +300 mV / V_CC+ −400 mV - delivers full dynamic range into low-impedance transducers or DAC buffers.
Gain-Bandwidth Product	1.4 MHz at V_CC = 10 V, R_L = 10 kΩ - sufficient for anti-aliasing filters and sensor signal bandwidths ≤100 kHz.
Input Noise Voltage	30 nV/√Hz at 1 kHz - suitable for low-frequency precision amplification without dominant noise contribution.

Pinout & Package

DIP8 plastic package (10.16 mm × 7.11 mm body, 2.54 mm lead pitch), through-hole mounting, RoHS-compliant ECOPACK® grade.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (Amplifier A)	High-impedance CMOS node accepting differential signal; referenced to common-mode range spanning both rails.
2	Non-inverting Input (Amplifier A)	High-impedance CMOS node; matched to Pin 1 for low input offset and drift.
3	Output (Amplifier A)	Rail-to-rail capable output driving up to 40 mA; limited by internal circuitry to prevent thermal runaway.
4	Positive Supply (V_CC+)	Accepts 2.7–16 V; powers both amplifiers and internal bias networks.
5	Negative Supply (V_CC−)	Ground reference in single-supply mode; accepts negative voltage down to −16 V in dual-supply configuration.
6	Non-inverting Input (Amplifier B)	Independent high-Z input identical in specs to Pin 2; enables dual-channel signal processing.
7	Inverting Input (Amplifier B)	Independent high-Z input identical in specs to Pin 1; maintains channel separation >120 dB at 1 kHz.
8	Output (Amplifier B)	Independent rail-to-rail output identical in drive strength and swing to Pin 3.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full-scale signal handling in single-supply systems without level-shifting circuitry or supply headroom loss.
1 pA typical input bias current	Preserves signal integrity in high-source-impedance applications (e.g., piezoelectric sensors, electrochemical cells).
Specified for 600 Ω load drive	Eliminates need for external buffer stages when interfacing with low-impedance transducers or analog switches.
3 kV HBM ESD tolerance	Reduces risk of field failure during handling and PCB assembly in non-ESD-controlled environments.
Spice macromodel included	Enables accurate AC/DC/transient simulation of closed-loop behavior before prototyping.

Applications

Strain Gauge Signal Conditioning

Portable Gas Sensor Front-End

Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring.

IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier core (one amp for gain, one for reference buffering), configured with matched external resistors.

Use Value: 2 mV max V_os and 1 pA I_ib minimize zero-point drift; rail-to-rail output ensures full ADC utilization across 0–3.3 V supply.

Use Scenario: Conditioning current-mode output from electrochemical CO sensors in handheld air quality meters.

IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with feedback resistor and second-stage gain/filtering using both op-amps.

Use Value: 30 nV/√Hz input noise avoids degrading sensor SNR; 200 μA/amplifier current enables >1-year battery life on coin-cell power.

Industrial Temperature Transmitter

Programmable Logic Controller (PLC) Analog Input Module

Use Scenario: Linearizing and scaling RTD (Pt100) signals in 4–20 mA loop-powered transmitters operating from 12 V supply.

IC Role / Device Role / Timing Role: Precision current source driver and signal conditioner - one amp configures constant-current excitation, the other performs ratiometric amplification.

Use Value: 2.7–16 V supply range matches loop-powered constraints; −40 °C to +125 °C rating ensures reliability in harsh enclosures.

Use Scenario: Buffering and filtering multiple 0–10 V analog inputs in modular PLC backplanes with shared 24 V rail.

IC Role / Device Role / Timing Role: Input protection and unity-gain buffer per channel, leveraging dual topology to reduce component count per channel.

Use Value: 600 Ω load specification guarantees stable operation into downstream multiplexer inputs; latch-up immunity prevents system lockup during EFT events.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TS912ID	SO-8 package, same electrical specs and temperature range (−40 °C to +125 °C); no DIP8 footprint.	Required for surface-mount production; lacks through-hole mechanical robustness for high-vibration test fixtures.	Select when board space or automated assembly mandates SO-8; verify PCB thermal relief for 125 °C ambient operation.
TS562IDT	Lower V_os (150 μV max), higher GBP (1.8 MHz), but higher supply current (450 μA/amp at 3 V) and narrower supply range (2.7–5.5 V).	Suitable only for low-voltage, high-accuracy applications; incompatible with 12 V or 16 V industrial supplies.	Choose only if sub-mV offset and >1 MHz bandwidth are mandatory and supply is strictly ≤5.5 V.

Compared with TS912ID, TS912IN offers identical analog performance in a through-hole DIP8 package ideal for prototyping and ruggedized industrial modules, while TS562IDT trades power efficiency and supply flexibility for enhanced DC precision and speed in compact low-voltage designs.

Availability

TS912IN is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable instrumentation, and programmable logic controller analog input modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS912IN 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, microcontroller, power, and MEMS products for industrial, automotive, and consumer markets.

The TS912 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in low-power, wide-supply industrial signal conditioning applications where input bias current and output drive capability are critical.

FAQ

What is the maximum capacitive load the TS912IN can drive stably?

The TS912IN is characterized for stability with up to 100 pF capacitive load in unity-gain configuration, as confirmed by phase margin measurements (≥30° at 3–10 V supply). Driving larger capacitances requires isolation resistance or gain compensation per Figure 8–13 in the datasheet; no internal compensation is provided for >100 pF.

Does TS912IN support true dual-supply operation with negative voltage on Pin 5?

Yes - Pin 5 (V_CC−) accepts voltages down to −16 V per absolute maximum ratings, enabling true dual-supply operation (e.g., ±5 V, ±12 V). The input common-mode range extends 0.2 V beyond both rails, and output swing remains rail-to-rail relative to the applied supplies.

How does the 600 Ω load specification impact PCB layout?

The 600 Ω load rating means the output can sustain 40 mA sink/source current without exceeding thermal limits or distorting linearity. Layout must minimize trace inductance and ensure adequate copper area for heat dissipation - especially critical at 125 °C ambient - and avoid routing sensitive analog traces near high-current output paths.

Is the TS912IN qualified for automotive applications?

No - TS912IN is rated for industrial temperature range (−40 °C to +125 °C) but is not AEC-Q100 qualified. For automotive use, ST offers the TS912IYDT variant (listed in Table 8), which undergoes additional screening and is marked "912IY" on package.

TS912IN Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Amplifier Type:: CMOS

Number of Circuits:: 2

Output Type:: Rail-to-Rail

Slew Rate:: 1.3V/µs

Gain Bandwidth Product:: 1.4 MHz

-3db Bandwidth:: -

Current - Input Bias:: 1 pA

Voltage - Input Offset:: 10 mV

Current - Supply:: 400µA (x2 Channels)

Current - Output / Channel:: 75 mA

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 16 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Through Hole

Supplier Device Package:: 8-Mini DIP

TS912IN FAQ

1.How can I place an order for TS912IN through Aetrix?

Please submit a Request for Quotation (RFQ) for TS912IN 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 TS912IN reliable?

The price and inventory of TS912IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS912IN is usually 5 days.

3.What payment methods are accepted for TS912IN?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS912IN transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS912IN?

TS912IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS912IN 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 TS912IN?

For technical support, including TS912IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS912IN requirements.

6.How does Aetrix verify that TS912IN is sourced from the original manufacturer or authorized distributors?

All TS912IN 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 TS912IN meets industry standards.

7.What is the process for return or replacement of TS912IN?

All TS912IN units undergo pre-shipment inspection (PSI). If there is an issue with TS912IN, 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 TS912IN part is unused and in its original packaging.

Return procedure for TS912IN:

1.Submit a request within 90 days.

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

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