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Texas Instruments TLC25L2ACDR
- Part No.:
- TLC25L2ACDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC25L2ACDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,936
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Product details
Overview
TLC25L2ACDR from Texas Instruments is a low-power, dual-channel LinCMOS™ operational amplifier optimized for single-supply battery-powered systems. It features 5-mV maximum input offset voltage (A-suffix), 1.4-V to 16-V supply range, rail-to-rail common-mode input down to the negative rail, and ultra-low 24–34 µA supply current per amplifier at 5 V - enabling precision sensing in energy-constrained IoT sensor nodes and portable medical monitors.
For engineers reviewing the TLC25L2ACDR datasheet, TLC25L2ACDR pinout, TLC25L2ACDR application, or TLC25L2ACDR equivalent, this device is selected for ultra-low-quiescent-current analog front-ends where input bias current <60 pA, offset stability over temperature, and operation below 2 V are critical design requirements.
Technical Context
The TLC25L2ACDR uses Texas Instruments' silicon-gate LinCMOS™ process to achieve extremely high input impedance (>1012 Ω) and femtoamp-level input bias currents, making it suitable for interfacing with high-impedance transducers like piezoelectric sensors and pH electrodes. Its input stage operates with true single-supply capability, supporting common-mode voltages extending to GND.
It delivers stable unity-gain performance with 85–100 MHz unity-gain bandwidth (at 5 V, 25°C) and 34°–36° phase margin, while maintaining low noise (68 nV/√Hz at 1 kHz) and high CMRR (≥94 dB) - characteristics essential for DC-coupled signal conditioning in precision measurement circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4 V to 16 V - enables direct operation from single alkaline, lithium coin cell, or solar-harvesting sources without regulation. |
| Input Offset Voltage (Max) | 5 mV at 25°C - A-suffix grade ensures tighter DC accuracy than standard C-grade (10 mV), reducing calibration burden in sensor amplifiers. |
| Supply Current (per amp) | 24–34 µA at 5 V, 25°C - supports multi-year battery life in always-on environmental monitoring nodes. |
| Input Bias Current (Typ) | 0.6 pA at 25°C - preserves signal integrity when amplifying nanoamp-level currents from photodiodes or electrochemical cells. |
| Unity-Gain Bandwidth | 85 MHz at 5 V, 25°C - sufficient for anti-aliasing filtering and fast-settling instrumentation amplifier gain stages. |
| Common-Mode Input Range | Extends to VDD–/GND - allows direct interface with ground-referenced sensors without level-shifting circuitry. |
| CMRR | ≥94 dB at 25°C - rejects power supply ripple and shared-noise coupling in mixed-signal PCB layouts. |
Pinout & Package
Package: 8-pin SOIC (D package), tape-and-reel (R suffix), RoHS-compliant plastic body, 3.9 mm × 4.9 mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output - drives low-impedance loads up to 1 MΩ; rail-to-rail swing limited by supply and load. |
| 2 | IN– A | Inverting input - high-impedance node; sensitive to stray capacitance; requires guarded trace routing in high-Z applications. |
| 3 | IN+ A | Non-inverting input - referenced to system ground or bias network; accepts signals from 0 V to VDD – 0.2 V. |
| 4 | VDD– / GND | Power return - must be connected directly to low-impedance ground plane; shared with second amplifier's return path. |
| 5 | VDD | Positive supply - decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable high-frequency operation. |
| 6 | OUT B | Second amplifier output - independent channel; identical specs to OUT A; enables dual-stage filtering or differential drive. |
| 7 | IN– B | Second inverting input - electrically isolated from IN– A; supports independent feedback networks per channel. |
| 8 | IN+ B | Second non-inverting input - matches IN+ A behavior; enables dual-sensor readout or matched gain configurations. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ Process Technology | Delivers femtoamp input bias current and sub-µV/°C offset drift - critical for long-term stability in unattended remote sensors. |
| True Single-Supply Operation | Common-mode input includes GND; eliminates need for dual supplies or charge pumps in portable equipment. |
| Ultra-Low Quiescent Current | 24 µA per amplifier at 5 V enables >10-year battery life in wake-on-event sensor nodes with duty-cycled operation. |
| ESD Protection | 2000 V HBM rating per MIL-STD-883C Method 3015.1 - reduces handling sensitivity during manual assembly and field service. |
| Stable Unity-Gain Configuration | No external compensation required - simplifies layout and reduces BOM count in gain-of-one buffer and follower applications. |
Applications
| Portable Gas Sensor Interface | Low-Power ECG Front-End |
|---|---|
Use Scenario: Amplifying nanoamp-level current from electrochemical gas detection cells powered by CR2032 batteries. IC Role / Device Role / Timing Role: Transimpedance amplifier with 5-mV VIO grade ensuring baseline stability across 0–50°C operating range. Use Value: 0.6-pA input bias prevents signal corruption; 24-µA quiescent current extends battery life beyond 5 years in continuous monitoring mode. |
Use Scenario: DC-coupled biopotential amplification in wearable heart-rate monitors with single-cell power. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with rail-to-rail input enabling zero-biased electrode interface. Use Value: Common-mode input down to GND eliminates need for reference voltage generation; 94-dB CMRR suppresses 50/60-Hz mains interference. |
| Solar-Powered Environmental Node | Industrial RTD Signal Conditioning |
Use Scenario: Signal conditioning for thermistor and humidity sensors in off-grid agricultural telemetry units. IC Role / Device Role / Timing Role: Dual-channel sensor amplifier - one channel for ratiometric bridge excitation, second for linearization. Use Value: 1.4-V minimum supply allows direct connection to supercapacitor storage; 68-nV/√Hz noise preserves resolution in 16-bit ADC interfaces. |
Use Scenario: Precision 3-wire RTD measurement in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-power buffer between RTD bridge and delta-sigma ADC driver stage. Use Value: 5-mV VIO and 1.1-µV/°C tempco minimize cold-junction error; 1012-Ω input impedance prevents RTD self-heating errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-I/SN | Higher supply current (100 µA/amp), wider GBW (10 MHz), but no sub-2-V operation; VIO = 250 µV (typ). | Better AC performance but unsuitable for <2-V battery systems; less suited for ultra-high-Z sensor buffering. | Select when higher speed and lower offset voltage are prioritized over battery life and low-voltage operation. |
| LTC2050CS8#TRPBF | Zero-drift architecture; VIO = 0.5 µV (max); supply current = 750 µA; min supply = 2.7 V. | Superior DC precision and drift, but 30× higher quiescent current limits use in energy-harvesting designs. | Select only when microvolt-level offset stability is mandatory and power budget permits >700-µA draw. |
Compared with MCP6022-I/SN and LTC2050CS8#TRPBF, the TLC25L2ACDR uniquely balances sub-2-V operation, femtoamp input bias, and 5-mV guaranteed VIO - making it irreplaceable in cost-sensitive, battery-limited, high-impedance analog front-ends where neither speed nor zero-drift are primary requirements.
Availability
TLC25L2ACDR is available at Aetrix Electronics and suitable for portable medical devices, wireless sensor networks, and solar-powered telemetry systems requiring stable component supply across multi-year production cycles.
Supply support for TLC25L2ACDR 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 founded in 1930, delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The TLC25L2ACDR belongs to TI's legacy LinCMOS™ precision op-amp family, designed specifically for ultra-low-power, high-input-impedance signal conditioning in battery-operated and energy-constrained instrumentation.
FAQ
What is the minimum operating supply voltage for the TLC25L2ACDR?
The TLC25L2ACDR operates down to 1.4 V, verified per the recommended operating conditions table in the SLOS002I datasheet. This enables direct use with single-cell alkaline, NiMH, or lithium coin cells without voltage regulation - a key differentiator versus most general-purpose op-amps that require ≥2.7 V.
Does the TLC25L2ACDR support rail-to-rail input operation?
The TLC25L2ACDR supports common-mode input voltage down to the negative rail (VDD–/GND), but not to the positive rail. At VDD = 5 V, the specified common-mode range is –0.2 V to 3.5 V - meaning it accepts inputs from ground up to ~0.5 V below VDD, confirmed in the "recommended operating conditions" section of the datasheet.
What is the guaranteed maximum input offset voltage for the TLC25L2ACDR?
The TLC25L2ACDR has a guaranteed maximum input offset voltage of 5 mV at 25°C and 0°C to 70°C full temperature range, as explicitly stated in the "AVAILABLE OPTIONS" table and electrical characteristics tables for TLC25L2AC variants under VDD = 5 V and VDD = 10 V conditions.
Is the TLC25L2ACDR pin-compatible with other devices in the TLC25x2 family?
Yes - all TLC25x2 dual op-amps (including TLC252, TLC25L2, and TLC25M2 variants) share identical 8-pin SOIC (D), PDIP (P), and TSSOP (PW) pinouts, as shown in the "D, P, OR PW PACKAGE (TOP VIEW)" diagram on page 2 of the SLOS002I datasheet. The R suffix denotes tape-and-reel packaging only, not pinout change.
What is the typical input bias current of the TLC25L2ACDR at room temperature?
The typical input bias current of the TLC25L2ACDR is 0.6 pA at 25°C, as documented in the "electrical characteristics" tables for TLC25L2AC under VDD = 5 V and VDD = 10 V test conditions - a value enabled by its LinCMOS™ silicon-gate process and critical for high-impedance sensor interfacing.
TLC25L2ACDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Single-Ended
- Slew Rate:
- 2.9V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 29µA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC25L2ACDR FAQ
1.How can I place an order for TLC25L2ACDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC25L2ACDR 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 TLC25L2ACDR reliable?
The price and inventory of TLC25L2ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC25L2ACDR is usually 5 days.
3.What payment methods are accepted for TLC25L2ACDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC25L2ACDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC25L2ACDR?
TLC25L2ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC25L2ACDR 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 TLC25L2ACDR?
For technical support, including TLC25L2ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC25L2ACDR requirements.
6.How does Aetrix verify that TLC25L2ACDR is sourced from the original manufacturer or authorized distributors?
All TLC25L2ACDR 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 TLC25L2ACDR meets industry standards.
7.What is the process for return or replacement of TLC25L2ACDR?
All TLC25L2ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC25L2ACDR, 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 TLC25L2ACDR part is unused and in its original packaging.
Return procedure for TLC25L2ACDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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