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Texas Instruments TLC27L2ACPSR
- Part No.:
- TLC27L2ACPSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC27L2ACPSR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,738
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Product details
Overview
TLC27L2ACPSR from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 5 mV max input offset voltage at 25°C, ultra-low 34 µA typical supply current (VDD = 5 V), and rail-to-rail output swing down to the negative rail - enabling direct interfacing with transducers in battery-powered field transmitters.
For engineers reviewing the TLC27L2ACPSR datasheet, TLC27L2ACPSR pinout, TLC27L2ACPSR application, or TLC27L2ACPSR equivalent, key selection criteria include its C-suffix commercial temperature range (0°C to 70°C), SOIC-8 package compatibility, LinCMOS™ input stage enabling 10¹² Ω input impedance, and verified performance in smoke detector front-ends and pressure transmitter analog signal chains.
Technical Context
The TLC27L2ACPSR uses Texas Instruments' silicon-gate LinCMOS™ process to achieve stable input offset voltage (≤5 mV) with <1.1 µV/°C drift over 0°C–70°C, while maintaining ultra-low power consumption (34 µA typ). Its common-mode input range extends 0.2 V below GND, supporting true single-supply operation with inputs referenced to ground.
It features dual independent amplifiers in one die, each with high open-loop gain (>50 V/mV), 85 kHz unity-gain bandwidth (VDD = 5 V), and phase margin ≥34° - ensuring stable closed-loop behavior in active filters and precision buffer configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | Max 5 mV at 25°C - enables accurate DC-coupled amplification of low-level sensor outputs without nulling circuitry |
| Supply Current (dual) | 34 µA typical at VDD = 5 V - supports >10-year battery life in remote 4–20 mA loop-powered transmitters |
| Input Impedance | 10¹² Ω typical - prevents loading of high-impedance sources like piezoresistive pressure sensors |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - allows input signals referenced to ground in single-supply systems |
| Output Swing | Within 50 mV of GND and within 0.9 V of VDD - provides maximum dynamic range for ADC driver stages |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for anti-aliasing filtering and slow-varying industrial sensor signals |
| ESD Rating | 2000 V HBM - meets MIL-STD-883C Method 3015.2 for robust handling in manufacturing environments |
Pinout & Package
Package: PS (Plastic Small Outline, 8-pin, 150 mil width), RoHS-compliant, tape-and-reel compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for sensor signal injection; accepts voltages down to −0.2 V relative to GND |
| 1IN− | Inverting input, Channel 1 | Feedback node for closed-loop configuration; matched bias current minimizes offset error |
| 1OUT | Output, Channel 1 | Capable of sourcing/sinking ±30 mA; swings to within 50 mV of GND and 0.9 V of VDD |
| GND | Ground reference | Low-impedance return path for both amplifiers; must be star-connected to minimize noise coupling |
| 2IN+ | Noninverting input, Channel 2 | Independent high-Z input for second sensor channel or reference buffer |
| 2IN− | Inverting input, Channel 2 | Separate feedback node; no crosstalk with Channel 1 due to monolithic isolation |
| 2OUT | Output, Channel 2 | Full rail-to-rail output drive; usable as independent signal conditioner or comparator hysteresis generator |
| VDD | Positive supply | Operates from 3 V to 16 V; internal ESD protection clamps transients up to 2000 V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power | 34 µA supply current enables continuous operation on coin-cell batteries for >5 years in wireless sensor nodes |
| LinCMOS™ input stage | 10¹² Ω input impedance and sub-pA bias currents preserve accuracy in high-source-impedance pH or thermocouple interfaces |
| Rail-to-rail output | Output reaches within 50 mV of GND, eliminating need for negative supply in smoke detector analog front-ends |
| Single-supply operation | Common-mode input extends below GND (−0.2 V), allowing ground-referenced sensor excitation and signal acquisition |
| Latch-up immunity | Designed-in immunity prevents catastrophic failure during overvoltage or ESD events in harsh industrial environments |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying microamp-level ionization chamber current or thermopile voltage in residential fire alarms. IC Role / Device Role / Timing Role: Precision DC-coupled transimpedance amplifier and reference buffer for ADC input stage. Use Value: 5 mV VIO and 34 µA IDD enable stable baseline calibration over temperature and multi-year shelf life without recalibration. | Use Scenario: Conditioning bridge output from MEMS pressure sensor in HVAC or process control systems. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with programmable gain and offset correction. Use Value: 10¹² Ω input impedance prevents bridge imbalance errors; rail-to-rail output maximizes SNR into 12-bit SAR ADCs. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and amplifying RTD or thermistor voltage in 4–20 mA loop-powered field devices. IC Role / Device Role / Timing Role: Low-drift signal conditioner driving voltage-to-current converter. Use Value: <1.1 µV/°C offset drift ensures <0.1°C measurement error across 0°C–70°C operating range. | Use Scenario: Amplifying weak pyroelectric sensor output in PIR-based occupancy sensors. IC Role / Device Role / Timing Role: High-gain AC-coupled amplifier with adjustable sensitivity and noise filtering. Use Value: Ultra-low 68 nV/√Hz input noise and 85 kHz bandwidth support reliable detection of sub-millivolt motion signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (550 µA), rail-to-rail I/O, 6.4 MHz GBW - trades ultra-low power for speed and full rail I/O | Better suited for higher-bandwidth sensor interfaces (e.g., ultrasonic flow meters) but unsuitable for long-life battery designs | Select TLV2462IDR only when bandwidth >100 kHz and rail-to-rail input are required; avoid for sub-100 µA power budgets |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C drift, 17 µA IDD - superior DC precision but higher cost and limited 5.5 V max VDD | Ideal for high-accuracy temperature sensing where offset stability dominates over supply voltage flexibility | Choose OPA2333AIDR when <0.5 µV total offset drift over temperature is mandatory; accept VDD ≤5.5 V limitation |
Compared with TLV2462IDR and OPA2333AIDR, the TLC27L2ACPSR uniquely balances ultra-low power (34 µA), wide supply range (3–16 V), and proven reliability in field transmitter designs - making it optimal for cost-sensitive, long-life industrial analog signal chains where moderate bandwidth suffices.
Availability
TLC27L2ACPSR is available at Aetrix Electronics and suitable for smoke detector manufacturing, pressure transmitter calibration, and temperature sensor module assembly requiring stable component supply and long-term obsolescence management.
Supply support for TLC27L2ACPSR 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
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The TLC27Lx family was designed specifically for precision, low-power sensor signal conditioning in battery-operated and loop-powered field instrumentation - emphasizing offset stability, input impedance, and single-supply usability over raw speed.
FAQ
What is the maximum operating temperature range for the TLC27L2ACPSR?
The TLC27L2ACPSR is characterized for operation from 0°C to 70°C (C-suffix grade). This commercial temperature range is validated per TI's SLOS052E datasheet Section 5.3 and applies to all electrical specifications unless otherwise noted. Operation outside this range may result in parametric degradation or functional failure.
Does the TLC27L2ACPSR support true single-supply operation with inputs referenced to ground?
Yes, the TLC27L2ACPSR supports true single-supply operation: its common-mode input voltage range extends to −0.2 V relative to GND at VDD = 5 V (Section 5.3), allowing direct connection of ground-referenced sensors. This eliminates the need for level-shifting circuitry in applications like smoke detector analog front-ends.
What package type is used for the TLC27L2ACPSR and is it RoHS-compliant?
The TLC27L2ACPSR uses the PS (Plastic Small Outline) 8-pin package, 150 mil width, as confirmed in TI's Device Information table and Mechanical Data section. It is RoHS-compliant and supplied in tape-and-reel format per TI's orderable information - verified via TI's official product folder and packaging documentation.
How does the input offset voltage of the TLC27L2ACPSR compare to the standard TLC27L2 variant?
The TLC27L2ACPSR has a maximum input offset voltage of 5 mV at 25°C, versus 10 mV for the base TLC27L2C. This tighter grading (A-grade) is explicitly documented in TI's Device Information table and Electrical Characteristics tables (Sections 5.4 and 5.6), enabling higher-accuracy signal conditioning without external trimming.
Can the TLC27L2ACPSR drive capacitive loads without instability?
The TLC27L2ACPSR maintains ≥34° phase margin with 20 pF capacitive load (Section 5.5), but stability degrades beyond that. For loads >20 pF, TI recommends adding a series resistor (≥100 Ω) between output and capacitance. This design guidance is confirmed in Figure 5-29 (Phase margin vs Capacitive Load) and application notes for LinCMOS™ op amps.
TLC27L2ACPSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 20µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TLC27L2ACPSR FAQ
1.How can I place an order for TLC27L2ACPSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2ACPSR 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 TLC27L2ACPSR reliable?
The price and inventory of TLC27L2ACPSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2ACPSR is usually 5 days.
3.What payment methods are accepted for TLC27L2ACPSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2ACPSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2ACPSR?
TLC27L2ACPSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2ACPSR 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 TLC27L2ACPSR?
For technical support, including TLC27L2ACPSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2ACPSR requirements.
6.How does Aetrix verify that TLC27L2ACPSR is sourced from the original manufacturer or authorized distributors?
All TLC27L2ACPSR 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 TLC27L2ACPSR meets industry standards.
7.What is the process for return or replacement of TLC27L2ACPSR?
All TLC27L2ACPSR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2ACPSR, 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 TLC27L2ACPSR part is unused and in its original packaging.
Return procedure for TLC27L2ACPSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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