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STMicroelectronics TS27L2AIDT
- Part No.:
- TS27L2AIDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS27L2AIDT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,215
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Product details
Overview
TS27L2AIDT from STMicroelectronics is a precision, very low power CMOS dual operational amplifier in SO-8 package, designed for single-supply operation (3–16 V), featuring 10 µA per amplifier supply current, 0.25 mV max input offset voltage (TS27L2AI grade), and rail-to-ground output swing. It delivers stable performance on capacitive loads with 45° phase margin and supports precision sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the TS27L2AIDT datasheet, TS27L2AIDT pinout, TS27L2AIDT application, or TS27L2AIDT equivalent, key selection criteria include ultra-low ICC (10 µA/amp), guaranteed low Vio drift (2 µV/°C), high CMRR (80 dB), and SO-8 thermal and layout compatibility in space-constrained analog front-ends.
Technical Context
This dual op-amp uses ST's silicon gate CMOS process to achieve ultra-low input bias current (≤1 pA typ.) and minimal temperature drift-superior to JFET amplifiers. Its two-stage architecture includes current-source-loaded differential input and class-A output stage, enabling stable unity-gain operation with ≥100 pF capacitive load.
The device operates from 3 V to 16 V single supply, supports common-mode input range from ground to VCC−1.5 V, and maintains 60 dB minimum PSRR and CMRR across −40°C to +125°C industrial temperature range-critical for unregulated battery rails and noisy embedded environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 10 µA per amplifier - enables multi-year operation on coin-cell batteries in always-on sensing nodes |
| Input Offset Voltage | 0.25 mV max (TS27L2AI) - ensures ≤250 µV DC error without trimming in 12-bit ADC front-ends |
| Input Bias Current | 1 pA typ. at 25°C - preserves signal integrity in high-impedance pH or photodiode interfaces |
| Phase Margin | 45° at unity gain with 100 pF load - guarantees stability without external compensation in transimpedance designs |
| Common-Mode Range | 0 V to VCC−1.5 V - allows direct interfacing to ground-referenced sensors on single 5 V or 3.3 V rails |
| Output Swing | Rail-to-ground (low side), up to VCC−1.2 V (high side) - maximizes dynamic range in low-voltage data acquisition |
| Gain-Bandwidth Product | 0.1 MHz - sufficient for anti-aliasing, filtering, and DC-coupled sensor buffering below 10 kHz |
Pinout & Package
TS27L2AIDT is housed in an 8-pin SO (Small Outline) plastic micropackage (SO-8), compliant with JEDEC MS-012, with body dimensions 4.9 mm × 6.0 mm × 1.75 mm and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Low-impedance buffered output of first amplifier; capable of sinking 45 mA and sourcing 60 mA |
| 2 | Inverting Input 1 | Differential input node with 1 pA bias current; requires matched trace impedance for optimal CMRR |
| 3 | Non-inverting Input 1 | High-Z input (≥10¹² Ω) for reference or sensor connection; sensitive to PCB leakage above 100 MΩ |
| 4 | VCC− (Ground) | Power return reference for both amplifiers; must be low-inductance connection to minimize noise coupling |
| 5 | Non-inverting Input 2 | Second independent high-impedance input; electrically isolated from Channel 1 except via shared VCC− |
| 6 | Inverting Input 2 | Second differential input; identical electrical specs to Pin 2; supports dual-sensor or differential pair use |
| 7 | Output 2 | Independent output stage; no crosstalk specification given, but channel separation ≥120 dB at 1 kHz |
| 8 | VCC+ | Positive supply rail (3–16 V); decoupling capacitor (100 nF ceramic) required within 5 mm for stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 10 µA per amplifier enables >10-year battery life in wireless sensor nodes powered by CR2032 |
| Guaranteed low Vio drift | 2 µV/°C max ensures <1 µV total offset shift over −40°C to +85°C ambient in portable medical devices |
| Rail-to-ground output | Enables true-zero-output capability for interfacing with single-supply ADCs without level-shifting circuitry |
| Capacitive-load stability | Stable with ≥100 pF load without external compensation-ideal for driving long traces or LCD bias networks |
| High input impedance | ≥10¹² Ω input resistance preserves signal fidelity in piezoelectric or electrochemical sensor interfaces |
Applications
| Portable Gas Sensors | Medical ECG Front-Ends |
|---|---|
|
Use Scenario: Amplifying microvolt-level signals from electrochemical gas detection cells operating on 3.3 V coin-cell power. IC Role / Device Role / Timing Role: First-stage transimpedance and gain amplifier, referenced to system ground with rail-to-ground output. Use Value: 1 pA input bias avoids baseline drift in high-resistance sensor elements; 10 µA ICC extends sensor module battery life beyond 5 years. |
Use Scenario: Buffering and filtering biopotential signals from dry-electrode ECG leads in wearable monitors. IC Role / Device Role / Timing Role: Dual-channel DC-coupled buffer and high-pass filter driver before 12-bit SAR ADC sampling. Use Value: 0.25 mV max Vio eliminates need for auto-zero circuitry; 80 dB CMRR rejects 50/60 Hz mains interference without guard traces. |
| Smart Meter Current Sensing | Industrial RTD Signal Conditioning |
|
Use Scenario: Isolated shunt-based current measurement in DIN-rail energy meters using single 5 V supply. IC Role / Device Role / Timing Role: Precision difference amplifier for bidirectional current sensing with ground-referenced output. Use Value: VCC− = GND configuration simplifies PCB layout; 60 dB PSRR suppresses supply ripple from switching regulators feeding metrology ASICs. |
Use Scenario: Linearizing and amplifying Pt100 RTD bridge outputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift instrumentation amplifier front-end with matched input bias for 3-wire RTD compensation. Use Value: 2 µV/°C Vio drift minimizes temperature-induced calibration drift; SO-8 footprint allows dense channel packing in 16-channel I/O cards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L2CDR | Higher Vio (1.5 mV max), 2× higher ICC (20 µA), same SO-8 package | Limited to commercial temp range (0°C to +70°C); not qualified for extended industrial use | Select when cost sensitivity outweighs temp range and offset requirements |
| LPV521MG/NOPB | Lower ICC (320 nA), lower Vio (150 µV), but only single-channel and SC70-5 package | Requires two devices and additional board area for dual-channel function; lacks rail-to-ground output | Select only for ultra-low-power single-channel applications where dual functionality is implemented discretely |
Compared with TLC27L2CDR and LPV521MG/NOPB, TS27L2AIDT uniquely balances ultra-low power (10 µA), industrial temperature rating (−40°C to +125°C), dual-channel integration, and rail-to-ground output-making it optimal for compact, battery-operated, dual-sensor systems requiring long-term DC accuracy.
Availability
TS27L2AIDT is available at Aetrix Electronics and suitable for portable medical devices, smart utility meters, battery-powered environmental sensors, and industrial PLC analog input modules requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TS27L2AIDT 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, specializing in automotive, industrial, power, and analog/mixed-signal technologies with vertical manufacturing and broad IP portfolio.
TS27L2AIDT belongs to ST's precision low-power op-amp product line, engineered specifically for energy-constrained, high-accuracy analog signal conditioning in battery-operated and harsh-environment industrial systems.
FAQ
Can TS27L2AIDT operate from a 3.3 V supply?
Yes. TS27L2AIDT is fully specified for single-supply operation from 3 V to 16 V. At 3.3 V, it maintains 0.25 mV max input offset voltage, 45° phase margin with 100 pF load, and rail-to-ground output swing-enabling direct interface with 3.3 V microcontrollers and ADCs without level shifting.
Does TS27L2AIDT require external compensation for stability?
No. The internal compensation ensures unity-gain stability with capacitive loads up to at least 100 pF, as verified in Figure 8 of the datasheet. No external components are needed for standard configurations, including transimpedance amplifiers driving photodiode capacitance or long PCB traces.
What is the maximum capacitive load TS27L2AIDT can drive while maintaining phase margin?
TS27L2AIDT sustains ≥45° phase margin with up to 100 pF load (Figure 8), and remains stable with ≥30° phase margin up to 500 pF. For loads exceeding 100 pF, series output resistance (e.g., 10–100 Ω) is recommended to isolate capacitance and preserve step response fidelity.
Is the SO-8 package of TS27L2AIDT RoHS-compliant and lead-free?
Yes. TS27L2AIDT is manufactured in a RoHS-compliant, lead-free SO-8 package per STMicroelectronics' ECOPACK® standards, with matte tin termination and halogen-free molding compound-fully compliant with EU Directive 2011/65/EU and IPC/JEDEC J-STD-020 moisture sensitivity level 3.
TS27L2AIDT 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:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.04V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 10µA (x2 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TS27L2AIDT FAQ
1.How can I place an order for TS27L2AIDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS27L2AIDT 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 TS27L2AIDT reliable?
The price and inventory of TS27L2AIDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27L2AIDT is usually 5 days.
3.What payment methods are accepted for TS27L2AIDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27L2AIDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS27L2AIDT?
TS27L2AIDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS27L2AIDT 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 TS27L2AIDT?
For technical support, including TS27L2AIDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27L2AIDT requirements.
6.How does Aetrix verify that TS27L2AIDT is sourced from the original manufacturer or authorized distributors?
All TS27L2AIDT 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 TS27L2AIDT meets industry standards.
7.What is the process for return or replacement of TS27L2AIDT?
All TS27L2AIDT units undergo pre-shipment inspection (PSI). If there is an issue with TS27L2AIDT, 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 TS27L2AIDT part is unused and in its original packaging.
Return procedure for TS27L2AIDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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