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

STMicroelectronics TS1874IYDT

Name: TS1874IYDT
Brand: STMicroelectronics
SKU: TS1874IYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS1874IYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS1874IYDT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

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Product details

Overview

TS1874IYDT from STMicroelectronics is a quad-channel, rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It operates from 1.8 V to 6 V supply, delivers 1.6 MHz gain bandwidth product, draws only 400 µA per channel, and supports rail-to-rail output swing within 100 mV of each rail into 600 Ω - enabling use in battery-powered audio drivers and portable sensor interfaces.

For engineers reviewing the TS1874IYDT datasheet, TS1874IYDT pinout, TS1874IYDT application, or TS1874IYDT equivalent, key selection considerations include its automotive-grade qualification (AEC-Q100), extended common-mode range (V_CC− −0.2 V to V_CC+ +0.2 V), 65 mA output drive capability, and SO-14 package compatibility with industrial temperature range (−40 °C to +125 °C).

Technical Context

The TS1874IYDT implements a CMOS input stage with rail-to-rail input common-mode range extending 200 mV beyond the supply rails at 25 °C, and rail-to-rail output stage capable of sourcing/sinking ≥65 mA while maintaining 100 mV headroom into 600 Ω loads. Its high unity-gain stability is ensured by internal compensation supporting stable operation with 100 pF capacitive loads.

Designed for single-supply systems, it features 55 dB minimum CMRR and 70 dB minimum SVRR across 1.8–5 V supply range, with input offset voltage drift of only 2 µV/°C and 27 nV/√Hz input voltage noise at 1 kHz - making it suitable for precision DC-coupled sensor signal conditioning and low-distortion (0.01% THD) audio buffering.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.8 V to 6 V - enables direct interface with Li-ion, NiMH, and single-cell alkaline batteries without regulation.
Gain Bandwidth Product	1.6 MHz typical - supports stable closed-loop operation up to ~100 kHz with moderate gain (e.g., G = 10) in sensor amplification stages.
Supply Current per Channel	400 µA typical - allows four independent amplifiers to operate continuously on <2 mA total, critical for always-on portable devices.
Output Drive Capability	≥65 mA source/sink - drives 600 Ω headphone loads or 2 kΩ instrumentation inputs without external buffers.
Input Offset Voltage	1.5 mV max over temperature - ensures ≤1.5 mV error in DC-coupled transducer interfaces (e.g., thermopile, bridge sensors).
Common-Mode Input Range	V_CC− −0.2 V to V_CC+ +0.2 V - accepts signals beyond supply rails, simplifying level-shifting in mixed-voltage systems.
Total Harmonic Distortion	0.01% - meets fidelity requirements for line-level audio driver and active filter applications.

Pinout & Package

TS1874IYDT is housed in a 14-lead SOIC (SO-14) package with standard 1.27 mm pitch, 8.55–8.75 mm body length, and 3.80–4.00 mm width - compatible with automated SMT assembly and IPC-7351B footprint standards.

Pin/Terminal	Circuit Role	Design Meaning
1	In1+	Non-inverting input of amplifier 1 - accepts rail-to-rail common-mode signals including ground-referenced sources.
2	In1−	Inverting input of amplifier 1 - used for feedback configuration (e.g., inverting gain stage or transimpedance amplifier).
3	Out1	Output of amplifier 1 - delivers rail-to-rail swing with 100 mV headroom into 600 Ω, supporting direct connection to ADC inputs or audio loads.
4	V_CC−	Negative supply rail - typically connected to GND in single-supply configurations; must be decoupled with 100 nF ceramic capacitor.
5	In2+	Non-inverting input of amplifier 2 - electrically isolated from other channels; supports independent biasing for multi-sensor front-ends.
6	In2−	Inverting input of amplifier 2 - referenced to same V_CC− as all channels; enables matched dual-channel instrumentation topologies.
7	Out2	Output of amplifier 2 - identical performance to Out1; usable for differential output generation or parallel drive.
8	V_CC+	Positive supply rail - accepts 1.8–6 V; requires local 100 nF ceramic decoupling adjacent to pin.
9	In3+	Non-inverting input of amplifier 3 - supports third channel in compact space-constrained designs (e.g., 3-axis sensor conditioning).
10	In3−	Inverting input of amplifier 3 - maintains channel independence; no crosstalk specified between amplifiers.
11	Out3	Output of amplifier 3 - fully specified for same load and thermal conditions as Out1/Out2.
12	In4+	Non-inverting input of amplifier 4 - enables fourth independent gain stage without external ICs (e.g., quad-channel ECG front-end).
13	In4−	Inverting input of amplifier 4 - supports unity-gain buffer or programmable gain configurations via external resistors.
14	Out4	Output of amplifier 4 - rail-to-rail output with 65 mA drive; usable for active filtering or level translation before MCU ADC.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full dynamic range utilization in 1.8 V systems - e.g., digitizing 0–1.8 V sensor outputs without level-shifting circuitry.
Extended common-mode input range	V_CC− −0.2 V to V_CC+ +0.2 V allows direct interfacing with overvoltage-tolerant sensors or DACs operating outside supply rails.
Low quiescent current (400 µA/channel)	Supports >100-hour battery life in coin-cell-powered IoT nodes using four simultaneous analog signal paths.
High output drive (65 mA)	Eliminates need for external buffer transistors when driving 600 Ω headphones or 2 kΩ data acquisition inputs.
AEC-Q100 qualified (Grade 2)	Validated for automotive ambient temperatures (−40 °C to +105 °C case), enabling use in infotainment and body control modules.

Applications

Audio Signal Conditioning

Portable Sensor Interface

Use Scenario: Driving stereo headphone outputs in Bluetooth earbuds powered by a single 3.7 V Li-ion cell.

IC Role / Device Role / Timing Role: Quad op-amp configured as two independent headphone drivers (channels 1&2) and two active filters (channels 3&4) for bass/treble shaping.

Use Value: Rail-to-rail output swing delivers full 0–3.7 V peak-to-peak audio into 16 Ω loads; 0.01% THD preserves fidelity without external Class-D stages.

Use Scenario: Amplifying and conditioning outputs from four MEMS accelerometers in a wearable motion tracker.

IC Role / Device Role / Timing Role: Each amplifier provides non-inverting gain (G = 10) and DC-blocking AC coupling for individual axis signals prior to MCU ADC sampling.

Use Value: 1.8 V operation matches MCU I/O voltage; 2 µV/°C offset drift minimizes calibration frequency; 400 µA/channel extends battery runtime beyond 7 days.

Laptop Battery Monitoring

Industrial Analog I/O Module

Use Scenario: Measuring cell voltage, charge current, and temperature in a 3-cell laptop battery pack with integrated fuel gauge.

IC Role / Device Role / Timing Role: Configured as precision difference amplifier (Ch1), current-sense amplifier (Ch2), reference buffer (Ch3), and temperature sensor conditioner (Ch4).

Use Value: 1.5 mV max V_os ensures <10 mV absolute error in 4.2 V cell measurement; rail-to-rail input accepts 0–5 V thermistor divider outputs directly.

Use Scenario: Signal conditioning for four 4–20 mA current loop inputs in a DIN-rail mounted PLC analog input card.

IC Role / Device Role / Timing Role: Each amplifier implements precision I/V conversion (250 Ω shunt), offset correction, and output buffering for isolation-stage inputs.

Use Value: 65 mA output drive sustains 20 mA loop compliance across 600 Ω loads; −40 °C to +125 °C rating ensures reliability in uncooled enclosures.

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
TS1874IDT	Industrial-grade (−40 °C to +125 °C), same electrical specs, non-automotive qualified packaging.	Lacks AEC-Q100 qualification; unsuitable for automotive ECUs but lower cost for industrial controls.	Select when automotive qualification is unnecessary and cost sensitivity outweighs qualification requirements.
MCP6004-E/SL	Lower GBP (1 MHz), higher V_os (4.5 mV max), 100 µA lower I_CC, same SO-14 package.	Better suited for ultra-low-power sensor wake-up circuits where bandwidth <100 kHz suffices.	Choose for sub-100 µA/channel systems where 1.6 MHz bandwidth is excessive and cost is primary constraint.

Compared with TS1874IDT, TS1874IYDT adds AEC-Q100 qualification and tighter production screening for automotive use; versus MCP6004-E/SL, it trades 100 µA higher supply current for 0.6 MHz higher GBP, 3 mV lower V_os, and guaranteed 65 mA drive - favoring precision, speed, and robustness in demanding portable and automotive roles.

Availability

TS1874IYDT is available at Aetrix Electronics and suitable for automotive infotainment systems, portable medical monitors, and industrial analog I/O modules requiring stable component supply with long-term lifecycle assurance.

Supply support for TS1874IYDT 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, power management ICs, analog components, and MEMS sensors for industrial, automotive, and consumer markets.

The TS187x family was developed to address demand for low-voltage, low-power, rail-to-rail op-amps in battery-operated and space-constrained applications - emphasizing precision, drive strength, and qualification for harsh environments.

FAQ

Is TS1874IYDT pin-compatible with TS1874IDT?

Yes - both share identical SO-14 pinout, electrical specifications, and thermal characteristics. The sole distinction is TS1874IYDT's AEC-Q100 Grade 2 qualification and enhanced screening for automotive use; no PCB redesign is needed when upgrading from IDT to IYDT in existing layouts.

What is the maximum capacitive load the TS1874IYDT can drive stably?

The TS1874IYDT maintains stability with up to 100 pF capacitive load under unity-gain conditions, as verified by phase margin ≥53° in the datasheet. For loads >100 pF, a series resistor (≥10 Ω) between output and capacitance is required to preserve stability in closed-loop configurations.

Does TS1874IYDT support true single-supply operation down to 1.8 V?

Yes - it operates with V_CC+ = 1.8 V and V_CC− = 0 V, delivering rail-to-rail input common-mode range (−0.2 V to +2.0 V) and output swing (0.1 V to 1.7 V into 600 Ω). All key parameters (GBP, I_CC, V_os) are characterized and guaranteed at 1.8 V per Tables 4–6.

How does the latch-up immunity specification impact system design?

Rated at 200 mA, the latch-up immunity ensures the device withstands transient overcurrent events (e.g., ESD-induced shoot-through or accidental short-circuits) without destructive failure. This eliminates need for external current-limiting resistors in most sensor interface and audio driver applications, simplifying BOM and layout.

TS1874IYDT 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:: 0.6V/µs

Gain Bandwidth Product:: 1.8 MHz

-3db Bandwidth:: -

Current - Input Bias:: 70 nA

Voltage - Input Offset:: 100 µV

Current - Supply:: 500µA (x4 Channels)

Current - Output / Channel:: 80 mA

Voltage - Supply Span (Min):: 1.8 V

Voltage - Supply Span (Max):: 6 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

TS1874IYDT FAQ

1.How can I place an order for TS1874IYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS1874IYDT 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 TS1874IYDT reliable?

The price and inventory of TS1874IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS1874IYDT is usually 5 days.

3.What payment methods are accepted for TS1874IYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS1874IYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS1874IYDT?

TS1874IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS1874IYDT 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 TS1874IYDT?

For technical support, including TS1874IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS1874IYDT requirements.

6.How does Aetrix verify that TS1874IYDT is sourced from the original manufacturer or authorized distributors?

All TS1874IYDT 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 TS1874IYDT meets industry standards.

7.What is the process for return or replacement of TS1874IYDT?

All TS1874IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS1874IYDT, 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 TS1874IYDT part is unused and in its original packaging.

Return procedure for TS1874IYDT:

1.Submit a request within 90 days.

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

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