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STMicroelectronics TS1874AIYDT
- Part No.:
- TS1874AIYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS1874AIYDT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,775
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Product details
Overview
TS1874AIYDT 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, consumes 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 TS1874AIYDT datasheet, TS1874AIYDT pinout, TS1874AIYDT application, or TS1874AIYDT equivalent, key selection considerations include its extended common-mode input range (VCC− − 0.2 V to VCC+ + 0.2 V), 65 mA output drive capability, AEC-Q100 qualified automotive grade rating, and SO-14 package compatibility with space-constrained industrial control and notebook subsystem designs.
Technical Context
The TS1874AIYDT implements a CMOS input stage with rail-to-rail input common-mode range exceeding supply rails by ±200 mV at 25 °C and rail-to-rail output swing limited to 100 mV from each rail under 600 Ω load. Its unity-gain stable architecture achieves 1.6 MHz GBW with 0.54 V/µs slew rate and 55° phase margin at 100 pF capacitive load.
It features 27 nV/√Hz input voltage noise, 85 dB CMRR at 5 V supply, 90 dB SVRR, and guaranteed operation across −40 °C to +125 °C. Input offset voltage is specified at 1.5 mV max (TS1874A grade), with 2 µV/°C drift, supporting precision DC-coupled signal conditioning in automotive body electronics and portable medical sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 6 V - enables direct integration with single-cell Li-ion, NiMH, or 3.3 V/5 V logic rails without level-shifting. |
| Gain Bandwidth Product | 1.6 MHz - supports stable closed-loop operation up to ~100 kHz with moderate gain (e.g., 16×) in active filters or sensor amplifiers. |
| Supply Current per Channel | 400 µA typical - allows four independent amplifiers to operate continuously on <2 mA total, critical for always-on battery systems. |
| Output Drive Capability | 65 mA source/sink - drives 600 Ω loads to rail with <100 mV headroom, suitable for headphone outputs or analog multiplexer buffers. |
| Input Offset Voltage | 1.5 mV max (TS1874A grade) - ensures ≤1.5 mV error in 1 V full-scale sensor interfaces without trimming. |
| Common-Mode Input Range | VCC− − 0.2 V to VCC+ + 0.2 V - accepts inputs beyond supply rails, simplifying single-supply transducer interfacing (e.g., thermocouples, bridge sensors). |
| ESD Tolerance | 2 kV HBM - meets IEC 61000-4-2 Level 2 requirements for handheld device front-end protection. |
Pinout & Package
TS1874AIYDT is housed in an SO-14 package (14-pin small outline integrated circuit), measuring 8.75 mm × 4.0 mm × 1.65 mm (max height), with 1.27 mm lead pitch and ECOPACK® RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | In1− | Inverting input of amplifier 1 - differential pair node accepting signals referenced to VCC−. |
| 2 | In1+ | Non-inverting input of amplifier 1 - high-impedance CMOS node for sensor or reference signal routing. |
| 3 | Out1 | Amplifier 1 output - rail-to-rail capable, drives loads down to 600 Ω with minimal saturation. |
| 4 | VCC− | Negative supply rail - connects to ground or system return; common reference for all four amplifiers. |
| 5 | In2+ | Non-inverting input of amplifier 2 - electrically isolated from other channels; supports independent signal paths. |
| 6 | In2− | Inverting input of amplifier 2 - matched to Pin 1 for consistent AC/DC performance across channels. |
| 7 | Out2 | Amplifier 2 output - identical drive strength and rail-to-rail behavior as Out1. |
| 8 | VCC+ | Positive supply rail - supplies all four amplifiers; accepts 1.8–6 V with no external regulation required. |
| 9 | In3− | Inverting input of amplifier 3 - part of third independent op-amp stage; layout symmetry minimizes crosstalk. |
| 10 | In3+ | Non-inverting input of amplifier 3 - high-impedance node; compatible with resistive divider or photodiode biasing. |
| 11 | Out3 | Amplifier 3 output - same 65 mA drive and 100 mV rail margin as Out1/Out2. |
| 12 | In4+ | Non-inverting input of amplifier 4 - enables four-channel simultaneous signal conditioning (e.g., multi-sensor data acquisition). |
| 13 | In4− | Inverting input of amplifier 4 - matched input pair ensures uniform gain accuracy across all channels. |
| 14 | Out4 | Amplifier 4 output - fully buffered output; supports independent feedback networks per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in single-supply systems - e.g., 0–3.3 V ADC interface without level-shifting. |
| Extended common-mode input range (±200 mV beyond rails) | Accepts inputs below ground or above VCC+, eliminating need for external biasing in bridge sensor applications. |
| Low quiescent current (400 µA/channel) | Supports always-on operation in battery-powered devices with >1-year runtime on a CR2032 coin cell (four channels). |
| AEC-Q100 qualified (Grade 2: −40 °C to +105 °C ambient) | Validated for automotive body control modules, HVAC actuators, and infotainment auxiliary audio paths. |
| High output drive (65 mA) | Directly drives 600 Ω headphones or 1 kΩ analog switches without external buffer stages. |
| Unity-gain stable with 100 pF load | Eliminates need for external compensation in filter or driver configurations - reduces BOM count and PCB area. |
Applications
| Automotive Cabin Sensors | Portable Medical Pulse Oximeters |
|---|---|
|
Use Scenario: Signal conditioning for thermistor-based cabin temperature sensors and MEMS humidity sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Quad amplifier configures two channels as precision instrumentation amplifiers (INA) for bridge sensors, one as reference buffer, and one as low-pass filter driver. Use Value: Extended Vicm allows direct connection to unbuffered sensor outputs; 400 µA/channel current draw extends ECU sleep-mode battery life. |
Use Scenario: Amplifying weak photodiode currents from red/IR LEDs in wearable pulse oximetry modules. IC Role / Device Role / Timing Role: Four independent transimpedance amplifiers (TIAs), each with programmable gain via external feedback, operating from 3.0 V coin cell. Use Value: Rail-to-rail output swings 0–3.0 V into 10 kΩ ADC input; 27 nV/√Hz noise preserves SpO₂ signal integrity at sub-1 µA photocurrent levels. |
| Notebook Audio Subsystem | Industrial Battery-Powered Data Loggers |
|
Use Scenario: Driving stereo headphone outputs and line-level analog outputs in ultraportable laptops with shared 3.3 V supply rail. IC Role / Device Role / Timing Role: Two channels serve as headphone drivers (600 Ω load), one as microphone preamp, and one as DAC output buffer. Use Value: 65 mA output current delivers 15 mW per channel into 32 Ω; rail-to-rail swing maximizes SNR without DC-blocking capacitors. |
Use Scenario: Conditioning analog outputs from multiple RTD, thermocouple, and strain gauge sensors in field-deployed environmental monitors. IC Role / Device Role / Timing Role: Quad amplifier implements individual 2nd-order anti-aliasing filters and gain stages prior to SAR ADC sampling. Use Value: 1.6 MHz GBW supports 100 kHz filter cutoffs; 1.5 mV max Vos limits measurement error to <0.15% of 1 V full-scale range. |
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 | Standard-grade (non-automotive); same electrical specs but rated −40 °C to +125 °C junction, not AEC-Q100 qualified. | Lacks automotive qualification; unsuitable for safety-critical vehicle subsystems requiring AEC-Q100 documentation. | Select when cost sensitivity outweighs automotive compliance needs - e.g., industrial test equipment or consumer notebooks. |
| MCP6004-E/SL | Lower GBW (1 MHz), higher Vos (3 mV max), 100 µA lower supply current; SO-14 package, non-AEC-Q100. | Insufficient drive (23 mA) and bandwidth for headphone or fast-filter applications; lacks extended Vicm. | Choose only for ultra-low-power (<1.6 mA total), non-automotive, low-bandwidth sensor buffering where cost is primary constraint. |
Compared with TS1874IDT, TS1874AIYDT adds AEC-Q100 qualification and tighter Vos spec (1.5 mV vs. 3 mV), while MCP6004-E/SL trades bandwidth and drive for lower current - making TS1874AIYDT optimal for automotive-qualified, medium-speed, high-drive quad-amplifier roles.
Availability
TS1874AIYDT is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical devices, notebook audio subsystems, and industrial battery-powered data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS1874AIYDT 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 ICs, sensors, and analog components for automotive, industrial, and consumer markets.
The TS187x family was developed specifically for low-voltage, low-power signal conditioning in battery-operated and automotive applications - emphasizing rail-to-rail operation, extended input range, and robustness across wide temperature and supply variations.
FAQ
Is TS1874AIYDT pin-compatible with TS1874IDT?
Yes - both share identical SO-14 pinout, electrical specifications, and footprint. The only differences are qualification status (AEC-Q100 for TS1874AIYDT) and guaranteed Vos limit (1.5 mV max for TS1874AIYDT vs. 3 mV for TS1874IDT). No PCB redesign is needed for drop-in replacement in automotive-qualified designs.
What is the maximum capacitive load the TS1874AIYDT can drive without instability?
The TS1874AIYDT remains unity-gain stable with up to 100 pF capacitive load, as verified by phase margin ≥53° in the datasheet. For loads >100 pF, a series resistor (≥100 Ω) must be added between output and capacitance to maintain stability - critical for driving long traces or LCD bias networks.
Does TS1874AIYDT support true single-supply operation below 2.0 V?
Yes - it is fully specified down to 1.8 V supply, with guaranteed rail-to-rail input/output operation, 1.6 MHz GBW, and 400 µA supply current at that voltage. Performance metrics (e.g., CMRR, SR) are characterized at 1.8 V, enabling use with single alkaline or LiFePO₄ cells without regulation.
How does the extended common-mode input range benefit sensor interfacing?
The ±200 mV Vicm extension beyond rails allows direct connection of sensors whose output may swing slightly below ground (e.g., thermocouples) or above VCC+ (e.g., certain bridge configurations), eliminating external bias resistors or level-shifters - reducing component count, power loss, and board space in compact sensor nodes.
TS1874AIYDT 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:
- 1 mV
- 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
TS1874AIYDT FAQ
1.How can I place an order for TS1874AIYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS1874AIYDT 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 TS1874AIYDT reliable?
The price and inventory of TS1874AIYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS1874AIYDT is usually 5 days.
3.What payment methods are accepted for TS1874AIYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS1874AIYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS1874AIYDT?
TS1874AIYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS1874AIYDT 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 TS1874AIYDT?
For technical support, including TS1874AIYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS1874AIYDT requirements.
6.How does Aetrix verify that TS1874AIYDT is sourced from the original manufacturer or authorized distributors?
All TS1874AIYDT 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 TS1874AIYDT meets industry standards.
7.What is the process for return or replacement of TS1874AIYDT?
All TS1874AIYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS1874AIYDT, 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 TS1874AIYDT part is unused and in its original packaging.
Return procedure for TS1874AIYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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