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STMicroelectronics TS1872AIYDT
- Part No.:
- TS1872AIYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS1872AIYDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,206
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Product details
Overview
TS1872AIYDT from STMicroelectronics is a dual, rail-to-rail input/output, low-power operational amplifier operating from 1.8 V to 6 V supply. It delivers 1.6 MHz gain bandwidth, 400 µA per channel supply current, ±100 mV output swing (600 Ω load), and extended common-mode range (VCC− −0.2 V to VCC+ +0.2 V) at 25 °C - enabling precision signal conditioning in space-constrained, battery-powered audio and sensor interfaces.
For engineers reviewing the TS1872AIYDT datasheet, TS1872AIYDT pinout, TS1872AIYDT application, or TS1872AIYDT equivalent, key selection criteria include its 1.8 V minimum supply, rail-to-rail I/O capability, automotive-grade qualification (AEC-Q100), SO-8 package compatibility, and 65 mA typical output drive - critical for portable communication devices and laptop audio subsystems.
Technical Context
The TS1872AIYDT implements a CMOS input stage with rail-to-rail differential pair architecture, supporting full-swing operation across 1.8–6 V supplies. Its extended common-mode input range exceeds rails by ±200 mV at 25 °C, while output voltage swing remains within 100 mV of each rail under 600 Ω load - enabling direct interfacing with low-voltage ADCs and DACs without level-shifting.
Internally compensated for unity-gain stability, it achieves 1.6 MHz GBP and 0.54 V/µs slew rate with 53° phase margin into 100 pF loads. ESD tolerance is rated at 2 kV HBM, and latch-up immunity meets 200 mA per IEC 61000-4-2, ensuring robustness in portable end-equipment environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 6 V - enables direct use with single-cell Li-ion, NiMH, or 3.3 V/5 V logic rails without regulation. |
| Gain Bandwidth Product | 1.6 MHz - supports stable closed-loop operation up to ~100 kHz with gain ≥10, suitable for audio preamps and sensor amplification. |
| Supply Current per Channel | 400 µA (typ.) - allows dual-channel operation at <1 mA total, extending battery life in always-on portable systems. |
| Input Offset Voltage | 1.5 mV (max, −40 °C to +125 °C) - ensures ≤1.5 mV DC error in precision DC-coupled signal paths without trimming. |
| Output Drive Capability | 65 mA (typ. source/sink) - drives 600 Ω loads to rail with <100 mV headroom, eliminating need for external buffers in headphone driver stages. |
| Common-Mode Input Range | VCC− −0.2 V to VCC+ +0.2 V at 25 °C - accepts inputs beyond supply rails, simplifying sensor interface design with unbuffered transducers. |
| ESD Tolerance | 2 kV HBM - provides inherent protection against handling discharge in assembly and field service without external TVS diodes. |
Pinout & Package
TS1872AIYDT is housed in an SO-8 package (ECOPACK® compliant, RoHS-compliant, Pb-free). Dimensions: 4.90 mm × 6.00 mm × 1.75 mm (L × W × H), pitch = 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | High-impedance CMOS node accepting differential signal reference for first op-amp stage. |
| 2 | Non-inverting Input (Channel 1) | High-impedance CMOS node accepting signal source for first op-amp stage. |
| 3 | Output (Channel 1) | Class-AB output capable of sourcing/sinking 65 mA while maintaining rail-to-rail swing into 600 Ω. |
| 4 | VCC− (Ground) | Power return path; must be low-impedance connection to system ground plane for noise immunity. |
| 5 | Non-inverting Input (Channel 2) | Independent high-Z input for second op-amp channel; electrically isolated from Channel 1. |
| 6 | Inverting Input (Channel 2) | Independent high-Z input for second op-amp channel; supports separate feedback networks. |
| 7 | Output (Channel 2) | Second rail-to-rail output stage, identical performance to Pin 3; enables stereo or dual-sensor signal paths. |
| 8 | VCC+ (Supply) | Positive supply rail; decoupling capacitor (100 nF ceramic) required within 5 mm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization with 1.8 V supplies - no lost headroom when driving ADCs or driving loads near supply rails. |
| Extended common-mode input range (±200 mV beyond rails) | Accepts sensor signals exceeding supply limits (e.g., thermocouples, bridge outputs), reducing need for external biasing. |
| Low 400 µA supply current per channel | Supports dual-channel operation at sub-mA total quiescent current - essential for multi-day battery life in wearables and IoT nodes. |
| Automotive-grade qualification (AEC-Q100) | Rated for −40 °C to +125 °C operation with enhanced reliability screening - suitable for infotainment and ADAS auxiliary signal chains. |
| High output drive (65 mA typ.) | Directly drives 600 Ω headphones or 1 kΩ sensor loads without external buffer stages - reduces BOM count and board area. |
Applications
| Portable Audio Amplification | Battery-Powered Sensor Interface |
|---|---|
|
Use Scenario: Driving stereo headphone outputs in Bluetooth earbuds with single 3.7 V Li-ion cell. IC Role / Device Role / Timing Role: Dual-channel rail-to-rail op-amp configured as DC-coupled headphone drivers with volume control feedback. Use Value: Delivers >10 mW/channel into 16 Ω loads while consuming <800 µA total - extends playback time by 30% vs. legacy 5 V op-amps requiring LDOs. |
Use Scenario: Amplifying output of MEMS microphone or resistive gas sensor in handheld environmental monitor. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and rail-to-rail output to 12-bit SAR ADC. Use Value: Extended Vicm allows direct connection to unbuffered sensor bridges; 1.5 mV max Vio ensures <0.1% measurement error over full temperature range. |
| Laptop Audio Codec Support | Low-Voltage Industrial Control Loop |
|
Use Scenario: Replacing discrete op-amps in notebook audio subsystems where space and power are constrained. IC Role / Device Role / Timing Role: Dual op-amp providing line-out buffering and microphone preamplification in shared 3.3 V domain. Use Value: SO-8 footprint replaces two SOT23-5 parts; 1.6 MHz GBP supports flat frequency response to 20 kHz with minimal phase distortion. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters operating from 2.4 V harvested energy sources. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier converting photodiode current to voltage with rail-to-rail output swing. Use Value: 1.8 V operation enables direct use with energy-harvesting PMICs; 2 kV HBM ESD protects against field-installation discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (550 µA/ch), lower GBP (6.4 MHz), no AEC-Q100 qualification. | Targeted at general-purpose industrial designs, not automotive or long-life battery systems. | Select when higher bandwidth is needed and automotive qualification is unnecessary. |
| MCP6022-E/SN | Wider supply range (2.7–6 V), higher Vio (2.5 mV max), no extended Vicm (rail-to-rail in only). | Suitable for cost-sensitive consumer electronics but lacks ±200 mV Vicm extension for sensor overvoltage tolerance. | Select when 1.8 V operation is not required and extended common-mode range is not critical. |
Compared with TLV2462IDR and MCP6022-E/SN, TS1872AIYDT uniquely combines 1.8 V operation, ±200 mV extended Vicm, AEC-Q100 qualification, and sub-1 mA dual-channel quiescent current - making it the only choice for automotive-grade, ultra-low-voltage portable signal conditioning.
Availability
TS1872AIYDT is available at Aetrix Electronics and suitable for battery-powered audio devices, portable sensor modules, and laptop/notebook computer subsystems requiring stable component supply across automotive and industrial temperature ranges.
Supply support for TS1872AIYDT 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, power management, and MEMS sensors for industrial, automotive, and consumer markets.
The TS187x family was developed specifically for ultra-low-voltage, rail-to-rail signal conditioning in portable and battery-constrained applications - emphasizing power efficiency, wide supply flexibility, and robustness in real-world deployment environments.
FAQ
Is TS1872AIYDT qualified for automotive applications?
Yes. TS1872AIYDT is explicitly qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C) and features enhanced screening per AEC-Q001/Q002. Its SO-8 package carries automotive-grade marking "1872Y" and is listed in Table 13 of the official datasheet as qualified and characterized for automotive use.
What is the maximum capacitive load the TS1872AIYDT can drive stably?
The TS1872AIYDT maintains ≥53° phase margin with up to 100 pF capacitive load (per Figure 33), but becomes unstable above 200 pF without isolation resistance. For loads >100 pF, a series resistor (≥10 Ω) between output and capacitance is required to preserve stability and prevent peaking or oscillation.
Can TS1872AIYDT operate with a single 1.8 V supply and still achieve rail-to-rail output?
Yes. At VCC+ = 1.8 V and VCC− = 0 V, the output swings to within 100 mV of both rails into a 600 Ω load (per Table 4, VOL/VOH specs), delivering true rail-to-rail performance down to the absolute minimum supply voltage specified.
Does TS1872AIYDT require external compensation for unity-gain configurations?
No. The device is internally compensated for unity-gain stability across its full supply range (1.8–6 V) and temperature range (−40 °C to +125 °C), as confirmed by phase margin ≥53° in Figure 25–27 and Table 4–6. No external compensation components are needed in standard non-inverting or inverting unity-gain setups.
TS1872AIYDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 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:
- 8-SOIC
TS1872AIYDT FAQ
1.How can I place an order for TS1872AIYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS1872AIYDT 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 TS1872AIYDT reliable?
The price and inventory of TS1872AIYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS1872AIYDT is usually 5 days.
3.What payment methods are accepted for TS1872AIYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS1872AIYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS1872AIYDT?
TS1872AIYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS1872AIYDT 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 TS1872AIYDT?
For technical support, including TS1872AIYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS1872AIYDT requirements.
6.How does Aetrix verify that TS1872AIYDT is sourced from the original manufacturer or authorized distributors?
All TS1872AIYDT 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 TS1872AIYDT meets industry standards.
7.What is the process for return or replacement of TS1872AIYDT?
All TS1872AIYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS1872AIYDT, 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 TS1872AIYDT part is unused and in its original packaging.
Return procedure for TS1872AIYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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