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Texas Instruments TLC25L2CDR
- Part No.:
- TLC25L2CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC25L2CDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,853
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Product details
Overview
TLC25L2CDR from Texas Instruments is a low-power, dual-channel LinCMOS™ operational amplifier optimized for single-supply battery-powered systems. It features 10 mV max input offset voltage (VIO), 20–34 µA supply current at 5 V, rail-to-rail common-mode input range down to the negative rail, and unity-gain stability - enabling precision signal conditioning in portable medical sensors, low-voltage data acquisition, and energy-harvesting interfaces.
For engineers reviewing the TLC25L2CDR datasheet, TLC25L2CDR pinout, TLC25L2CDR application, or TLC25L2CDR equivalent, this page delivers verified electrical specs, package mapping, real-world use cases, and validated alternative options - all grounded in TI's SLOS002I datasheet (Rev. March 2001) and D-package characterization.
Technical Context
The TLC25L2CDR implements a silicon-gate LinCMOS™ process that delivers ultra-low input bias current (≤60 pA typ) and high input impedance (>1012 Ω), making it suitable for high-impedance sensor front-ends where leakage-induced errors must be minimized. Its input stage operates with true single-supply capability, supporting common-mode voltages from ground to VDD − 0.2 V across 1.4–16 V supply range.
This device is internally compensated for unity-gain stability and exhibits low-noise performance (68 nV/√Hz at 1 kHz) under high-impedance loading (RL = 1 MΩ). Its phase margin remains ≥30° over temperature (0°C to 70°C), ensuring robust closed-loop behavior in precision DC-coupled amplifiers and active filters.
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 cell sources without regulation. |
| Input Offset Voltage (VIO) | 10 mV max at 25°C - defines worst-case DC error in precision gain stages; A/B variants offer tighter grades (5 mV / 2 mV). |
| Supply Current (IDD) | 20–34 µA per dual amplifier at 5 V - supports multi-year battery life in always-on monitoring nodes. |
| Input Bias Current | ≤60 pA typ - preserves signal integrity when interfacing with high-Z sources like pH electrodes or piezoelectric transducers. |
| Unity-Gain Bandwidth (B1) | 85–100 MHz at 5 V (RL = 1 MΩ) - sufficient for anti-aliasing filtering and low-frequency instrumentation amplifier buffering. |
| Common-Mode Input Range | Includes negative rail (GND) - allows direct sensing of signals referenced to ground in single-supply topologies. |
| Output Voltage Swing | Within 50 mV of rails (VOL ≤ 50 mV, VOH ≥ VDD − 50 mV at RL = 1 MΩ) - maximizes dynamic range in low-voltage ADC driver applications. |
Pinout & Package
Package: 8-pin SOIC (D package), tape-and-reel (suffix R), body dimensions 3.91 mm × 4.9 mm × 1.75 mm, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output; drives loads up to 1 MΩ with <50 mV headroom to rails. |
| 2 | IN− A | Inverting input; high-impedance node sensitive to PCB leakage and guarding requirements. |
| 3 | IN+ A | Non-inverting input; accepts common-mode signals from GND to VDD − 0.2 V. |
| 4 | GND / VDD− | Power reference return; must be low-impedance and decoupled locally to minimize noise coupling. |
| 5 | VDD | Positive supply input; supports 1.4–16 V; requires 0.1 µF ceramic bypass capacitor near pin. |
| 6 | OUT B | Second amplifier output; electrically isolated but thermally coupled to OUT A. |
| 7 | IN− B | Inverting input for second channel; identical electrical characteristics to IN− A. |
| 8 | IN+ B | Non-inverting input for second channel; enables dual-sensor or differential pair configurations. |
Key Features
| Feature | Design Value |
|---|---|
| True single-supply operation | Common-mode input includes GND - eliminates need for level-shifting circuitry in 0–VDD sensor interfaces. |
| Ultra-low power consumption | 20–34 µA total supply current at 5 V - extends battery life in wearable and remote IoT endpoints. |
| High input impedance | >1012 Ω typical - prevents loading of high-Z sources such as electret microphones or capacitive touch sensors. |
| Rail-to-rail input capability | Operates with inputs at GND - critical for accurate zero-reference measurements in single-supply data loggers. |
| Internal ESD protection | Rated to 2000 V HBM - reduces risk of field failure during board assembly and handling. |
Applications
| Portable Medical Sensors | Low-Voltage Data Acquisition |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG or EEG signals from dry electrodes in battery-powered wearables. IC Role / Device Role: First-stage instrumentation amplifier buffer with high CMRR and minimal DC drift. Use Value: 10 mV VIO and 60 pA IIB prevent baseline wander and electrode polarization errors in unshielded, high-impedance biopotential paths. |
Use Scenario: Conditioning analog outputs from MEMS accelerometers and temperature sensors in edge-node gateways. IC Role / Device Role: Signal conditioner and ADC driver operating directly from 3.3 V or 1.8 V LDOs. Use Value: Rail-to-rail input and 50 mV output headroom maximize usable ADC input range while consuming <35 µA total. |
| Energy-Harvesting Interfaces | Remote Environmental Monitoring |
|
Use Scenario: Amplifying nanoampere-current outputs from photodiodes or thermopiles powered by solar cells or RF harvesters. IC Role / Device Role: Transimpedance amplifier (TIA) with ultra-low input bias current and sub-2 V operation. Use Value: 60 pA IIB minimizes dark-current error; 1.4 V minimum supply enables direct connection to harvested energy storage capacitors. |
Use Scenario: Signal conditioning for soil moisture, air quality, and humidity sensors deployed in unattended field stations. IC Role / Device Role: Dual-channel sensor interface IC providing excitation control and analog preprocessing before MCU sampling. Use Value: Dual amplifiers reduce component count; 34 µA IDD enables >5-year operation on AA batteries with duty-cycled sensing. |
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 |
|---|---|---|---|
| TLV2462IDR | Lower VIO (2 mV max), higher supply current (550 µA), rail-to-rail output only (not input) | Requires external level shift for GND-referenced inputs; better for higher-speed, higher-accuracy systems with ample power budget | Select when precision offset and bandwidth outweigh ultra-low power needs; not drop-in due to input range mismatch |
| LPV521MG/NOPB | Lower supply current (320 nA), lower bandwidth (155 kHz), same rail-to-rail input | Optimized for nanowatt sensing; insufficient for >100 kHz signal chains or driving 1 MΩ loads | Choose for multi-year battery life in ultra-low-duty-cycle applications; incompatible for unity-gain stable >1 MHz designs |
Compared with TLV2462IDR and LPV521MG/NOPB, the TLC25L2CDR uniquely balances sub-35 µA quiescent current, rail-to-rail input, 100 MHz unity-gain bandwidth, and 1.4 V operation - making it the only option among the three viable for single-supply, high-Z, wide-bandwidth sensor buffering below 2 V.
Availability
TLC25L2CDR is available at Aetrix Electronics and suitable for portable medical sensors, low-voltage data acquisition, and energy-harvesting interfaces requiring stable component supply across extended production lifecycles.
Supply support for TLC25L2CDR 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 specializing in analog and embedded processing technologies, with decades of heritage in precision op-amps and low-power design.
The TLC25L2CDR belongs to TI's LinCMOS™ dual op-amp family, engineered specifically for ultra-low-power, single-supply operation in battery-constrained and high-impedance analog signal chains.
FAQ
What is the maximum supply voltage rating for the TLC25L2CDR?
The TLC25L2CDR has an absolute maximum supply voltage (VDD) rating of 18 V, as specified in the Absolute Maximum Ratings table of the SLOS002I datasheet. However, its recommended operating range is 1.4 V to 16 V. Exceeding 16 V may compromise long-term reliability or parametric performance, even if no immediate failure occurs.
Does the TLC25L2CDR support true rail-to-rail input operation?
Yes, the TLC25L2CDR supports true rail-to-rail input operation - its common-mode input voltage range includes the negative rail (GND) across all supply voltages (e.g., –0.2 V to 4 V at VDD = 5 V). This enables direct interfacing with ground-referenced sensors without external level-shifting circuitry.
What is the typical input bias current of the TLC25L2CDR at 25°C?
The typical input bias current (IIB) of the TLC25L2CDR is ≤60 pA at 25°C, as confirmed in the Electrical Characteristics tables for VDD = 5 V and VDD = 10 V (pages 9–10, SLOS002I). This ultra-low value is enabled by TI's LinCMOS™ process and is critical for preserving accuracy in high-impedance sensor applications.
Can the TLC25L2CDR drive a 1 MΩ load effectively?
Yes, the TLC25L2CDR is characterized for operation into 1 MΩ loads, as shown in the TLC25L2C/L2AC/L2BC parameter tables (pages 9–10). At 5 V supply, it delivers full output swing (within 50 mV of rails) and maintains 50–700 V/mV large-signal gain under this condition - confirming suitability for high-impedance buffering and filtering stages.
Is the TLC25L2CDR unity-gain stable?
Yes, the TLC25L2CDR is internally compensated for unity-gain stability, as explicitly stated in the device description and verified by phase margin measurements ≥30° across temperature (0°C to 70°C) and supply voltages (pages 11, 14). No external compensation is required for stable operation at AV = 1.
TLC25L2CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- 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
TLC25L2CDR FAQ
1.How can I place an order for TLC25L2CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC25L2CDR 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 TLC25L2CDR reliable?
The price and inventory of TLC25L2CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC25L2CDR is usually 5 days.
3.What payment methods are accepted for TLC25L2CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC25L2CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC25L2CDR?
TLC25L2CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC25L2CDR 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 TLC25L2CDR?
For technical support, including TLC25L2CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC25L2CDR requirements.
6.How does Aetrix verify that TLC25L2CDR is sourced from the original manufacturer or authorized distributors?
All TLC25L2CDR 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 TLC25L2CDR meets industry standards.
7.What is the process for return or replacement of TLC25L2CDR?
All TLC25L2CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC25L2CDR, 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 TLC25L2CDR part is unused and in its original packaging.
Return procedure for TLC25L2CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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