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Texas Instruments TLC252BCDR
- Part No.:
- TLC252BCDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC252BCDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,012
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Product details
Overview
TLC252BCDR from Texas Instruments is a LinCMOS™ dual operational amplifier with 2-mV maximum input offset voltage (VIO), 1.4 V to 16 V supply range, and true single-supply operation enabling rail-to-rail common-mode input down to the negative rail - ideal for low-voltage battery-powered sensor signal conditioning and portable medical instrumentation.
For engineers reviewing the TLC252BCDR datasheet, TLC252BCDR pinout, TLC252BCDR application, or TLC252BCDR equivalent, this device delivers ultra-low quiescent current (300 µA typ at 1.4 V), high input impedance (>10¹² Ω), and stable unity-gain performance - critical for precision analog front-ends in energy-constrained embedded systems.
Technical Context
The TLC252BCDR uses Texas Instruments' silicon-gate LinCMOS™ process to achieve extremely low input bias current (≤600 pA max) and input offset current (≤300 pA max) across 0°C to 70°C, enabling accurate amplification of high-impedance sources like pH electrodes and piezoelectric sensors without significant error drift.
Its internal ESD protection (2000 V per MIL-STD-883C Method 3015.1) and guaranteed stability at unity gain support robust deployment in industrial transducer interfaces and remote monitoring nodes where supply headroom is limited and long-term parametric consistency is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIO max | 2 mV at 25°C - enables ≤0.2% gain error in 1-V full-scale sensor bridges without trimming |
| Supply range | 1.4 V to 16 V - supports direct operation from single Li-ion, NiMH, or solar-cell sources |
| IIB max | 600 pA at 70°C - preserves signal integrity in >1-MΩ source impedance circuits (e.g., electret mics) |
| CMVR | Includes negative rail (e.g., –0.2 V to 4 V at VDD = 5 V) - allows ground-referenced input stages without level-shifting |
| IDD typ | 300 µA at VDD = 1.4 V - extends battery life beyond 10 years in 10-µA average-power IoT endpoints |
| AVD min | 10 V/mV at 25°C - ensures ≥60 dB open-loop gain for stable closed-loop configurations at low frequencies |
| ESD rating | 2000 V HBM - reduces field failure risk in unshielded handheld diagnostic equipment assembly |
Pinout & Package
Package: 8-pin SOIC (D package), tape-and-reel (suffix R), body size 3.9 mm × 4.9 mm, 1.75 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output - drives 10-kΩ loads to within 50 mV of GND/VD– |
| 2 | IN– A | Inverting input - high-impedance node (≥10¹² Ω) for feedback network connection |
| 3 | IN+ A | Non-inverting input - accepts common-mode signals down to VD–/GND |
| 4 | VD– / GND | Negative supply terminal - serves as reference for single-supply operation |
| 5 | VD+ | Positive supply terminal - accepts 1.4–16 V; decoupling capacitor required at pin |
| 6 | OUT B | Second amplifier output - independent channel for dual-sensor buffering or active filtering |
| 7 | IN– B | Inverting input for second op-amp - electrically isolated from Channel A |
| 8 | IN+ B | Non-inverting input for second op-amp - supports independent biasing per channel |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Enables picoamp-level input currents and <1 µV/°C offset drift - critical for thermocouple amplifiers |
| True single-supply operation | Common-mode input includes VD–/GND - eliminates need for dual supplies in portable ECG front-ends |
| Low-voltage capability | Functional at 1.4 V - permits use with partially discharged primary lithium cells (e.g., CR2032) |
| Unity-gain stable | No external compensation required - simplifies layout for gain-of-1 buffers in data acquisition chains |
| ESD-protected inputs | 2000-V HBM rating - withstands handling in non-EPA environments during board-level test |
Applications
| Portable Gas Sensors | Wearable Biopotential Monitoring |
|---|---|
|
Use Scenario: Amplifying low-current output (nA range) from electrochemical gas detection cells powered by coin-cell batteries. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with rail-to-rail input and sub-µA quiescent draw. Use Value: Enables >5-year battery life while maintaining <2-mV offset-induced baseline drift over temperature. |
Use Scenario: Conditioning microvolt-level EEG/EMG signals in compact wearable patches with no external power supply. IC Role / Device Role / Timing Role: Dual-channel DC-coupled buffer and gain stage before ADC sampling. Use Value: High input impedance prevents signal attenuation from dry electrode interfaces; low noise (25 nV/√Hz) preserves SNR. |
| Solar-Powered Remote Telemetry | Industrial 4–20 mA Loop Receivers |
|
Use Scenario: Signal conditioning for soil moisture and temperature sensors deployed in off-grid agricultural nodes. IC Role / Device Role / Timing Role: Low-power sensor interface amplifier operating directly from 2.5-V solar harvester output. Use Value: 1.4-V minimum supply allows operation during dawn/dusk low-light conditions without brownout reset. |
Use Scenario: Converting 4–20 mA loop current to voltage in explosion-proof field instrument housings with strict power budgets. IC Role / Device Role / Timing Role: Precision I-to-V converter with matched dual channels for redundant diagnostics. Use Value: 2-mV VIO ensures <0.01% FSR error in 16-bit PLC analog input modules without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (550 µA typ), lower VIO (0.6 mV), rail-to-rail output (TLC252BCDR is not RRO) | Better for precision DAC output buffering; less suitable for ultra-low-power wake-on-event sensing | Select when output swing to supply rails is required and 1.4-V operation is not needed |
| LMV358IDR | Lower cost, higher VIO (3 mV max), wider temp range (–40°C to 125°C), but no 1.4-V operation | Preferred for automotive under-hood sensors; unsuitable for sub-2-V battery cutoff scenarios | Choose for cost-sensitive industrial controls where extended temperature range outweighs ultra-low-VDD need |
Compared with TLV2462IDR and LMV358IDR, the TLC252BCDR uniquely supports 1.4-V operation with 2-mV VIO and pA-level input bias - making it irreplaceable in energy-harvesting and primary-battery applications where both voltage headroom and DC accuracy are simultaneously constrained.
Availability
TLC252BCDR is available at Aetrix Electronics and suitable for portable medical devices, solar-powered telemetry nodes, and industrial 4–20 mA receivers requiring stable component supply across multi-year production cycles.
Supply support for TLC252BCDR 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 over 50 years of innovation in precision signal chain components.
The TLC252 family was designed specifically for ultra-low-power, high-input-impedance analog signal conditioning in battery-operated and energy-constrained systems - emphasizing DC accuracy, rail-compatible operation, and long-term reliability.
FAQ
What is the minimum operating supply voltage for the TLC252BCDR?
The TLC252BCDR operates down to 1.4 V, verified per the recommended operating conditions table in the SLOS002I datasheet. This enables direct use with partially discharged alkaline or lithium primary cells, and compatibility with low-voltage energy harvesters - a key differentiator versus standard CMOS op-amps that require ≥2.7 V.
Does the TLC252BCDR support true single-supply operation with input signals referenced to ground?
Yes, the TLC252BCDR features a common-mode input voltage range that includes the negative rail (VD–/GND), allowing ground-referenced inputs without level-shifting circuitry. At VDD = 5 V, the specified VICR is –0.2 V to 4 V - confirmed in Section 6 of the datasheet under electrical characteristics.
What is the typical input bias current of the TLC252BCDR at 70°C?
The TLC252BCDR has a maximum input bias current of 600 pA at 70°C, with typical values as low as 0.6 pA at 25°C. These values are measured under VO = 2.5 V and VIC = 2.5 V conditions and appear in Table 6 (VDD = 5 V) and Table 7 (VDD = 10 V) of the SLOS002I datasheet.
Is the TLC252BCDR unity-gain stable without external compensation?
Yes, the TLC252BCDR is explicitly characterized for unity-gain stability in the datasheet's operating characteristics tables (Sections 8 and 14). Phase margin remains ≥43° at 25°C with CL = 20 pF and RL = 10 kΩ - eliminating need for external compensation capacitors in buffer or gain-of-1 configurations.
How does the 2-mV VIO grade of the TLC252BCDR compare to the TLC252ACD and TLC252CD variants?
The TLC252BCDR's 2-mV maximum input offset voltage (VIO) is tighter than the 5-mV spec of the TLC252ACD and the 10-mV spec of the TLC252CD, as defined in the "AVAILABLE OPTIONS" table on page 1 of the SLOS002I datasheet. This grade is achieved via post-package trimming and is validated across 0°C to 70°C.
TLC252BCDR 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:
- -
- Slew Rate:
- 2.9V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 290 µV
- Current - Supply:
- 1.9mA (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
TLC252BCDR FAQ
1.How can I place an order for TLC252BCDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC252BCDR 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 TLC252BCDR reliable?
The price and inventory of TLC252BCDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC252BCDR is usually 5 days.
3.What payment methods are accepted for TLC252BCDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC252BCDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC252BCDR?
TLC252BCDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC252BCDR 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 TLC252BCDR?
For technical support, including TLC252BCDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC252BCDR requirements.
6.How does Aetrix verify that TLC252BCDR is sourced from the original manufacturer or authorized distributors?
All TLC252BCDR 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 TLC252BCDR meets industry standards.
7.What is the process for return or replacement of TLC252BCDR?
All TLC252BCDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC252BCDR, 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 TLC252BCDR part is unused and in its original packaging.
Return procedure for TLC252BCDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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