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Texas Instruments TLC272BID
- Part No.:
- TLC272BID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC272BID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,851
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Product details
Overview
TLC272BID from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 2 mV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 4 V to 16 V across –40°C to 85°C and delivers 4.5 MHz unity-gain bandwidth - enabling high-fidelity signal conditioning in battery-powered sensor interfaces and industrial analog front-ends.
For engineers reviewing the TLC272BID datasheet, TLC272BID pinout, TLC272BID application, or TLC272BID equivalent, key selection considerations include its low input bias current (<60 pA), wide common-mode input range extending below ground, and SOIC-8 package compatibility with legacy BiFET upgrade paths in precision instrumentation designs.
Technical Context
The TLC272BID uses a polysilicon-gate CMOS process to achieve ultra-high input impedance (>10¹² Ω) and low input bias current, minimizing loading on high-impedance sources such as piezoelectric sensors and pH electrodes. Its input stage supports common-mode voltages down to –0.1 V (at VDD = 5 V) and up to VDD – 1.5 V, enabling direct interfacing with single-supply ADC drivers and transducer signal chains without level-shifting circuitry.
Internally compensated for unity-gain stability, the device provides 0.5 V/μs slew rate and 60° phase margin with 20 pF capacitive load. Its low 10.8 nV/√Hz noise floor and 65–85 dB CMRR support accurate amplification of microvolt-level signals in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 2000 μV max at 25°C - defines worst-case DC error in precision gain stages without trimming |
| Input Bias Current | 60 pA max at 25°C - enables use with >1 MΩ source impedances without significant voltage drop |
| Unity-Gain Bandwidth | 4.5 MHz - supports stable closed-loop operation up to ~300 kHz with moderate gain |
| Supply Voltage Range | 4 V to 16 V - compatible with 5 V and 12 V industrial rails and battery-backed systems |
| Common-Mode Input Range | –0.1 V to VDD – 1.5 V - allows ground-referenced inputs in single-supply configurations |
| Output Voltage Swing | Within 50 mV of negative rail and 50 mV of positive rail - preserves dynamic range near supply limits |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - suitable for low-frequency sensor amplification with <1 μV RMS noise in 10 kHz BW |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, plastic body with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | High-impedance node accepting differential signal; requires guard ring for leakage-sensitive applications |
| 2 | Non-inverting input (Amplifier A) | Accepts reference or sensor signal; common-mode range extends below ground |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; swings within 50 mV of rails under 10 kΩ load |
| 4 | Negative supply (V–) | Connect to ground in single-supply mode; supports split-rail operation down to –18 V |
| 5 | Non-inverting input (Amplifier B) | Independent input for second channel; identical electrical specs to Pin 2 |
| 6 | Inverting input (Amplifier B) | Matches Pin 1 performance; usable for differential pair or independent signal path |
| 7 | Output (Amplifier B) | Electrically isolated from Pin 3; supports dual-channel signal processing in same footprint |
| 8 | Positive supply (V+) | Accepts 4–16 V; internal ESD protection rated per JEDEC JS-001 Class 2 |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of ADC input range in 3.3 V or 5 V systems without external level-shifting |
| Single-supply optimized input stage | Supports input voltages down to –0.1 V relative to V–, eliminating need for negative bias in sensor interfaces |
| Low 10.8 nV/√Hz input voltage noise | Reduces integrated noise in 10 Hz–10 kHz band to <1.2 μV RMS - critical for strain gauge and thermopile amplifiers |
| ESD-protection circuitry | Withstands ≥2 kV HBM per JEDEC JS-001, reducing field failure risk in handling and assembly |
| Latch-up immunity | Guaranteed no destructive latch-up under I/O stress per JEDEC JESD78, supporting robust industrial deployment |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or bridge-based pressure sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset correction and noise filtering prior to 16-bit SAR ADC sampling. Use Value: 2000 μV max VIO and 10.8 nV/√Hz noise ensure <0.1% measurement error over 0–100°C range without calibration. | Use Scenario: Front-end amplification for ECG electrode signals in handheld patient monitors powered by Li-ion batteries. IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier driver with high CMRR and low power consumption. Use Value: 4 V minimum supply and 3.2 mA typical IDD enable >24-hour operation on 500 mAh battery while maintaining diagnostic-grade SNR. |
| Automotive Cabin Environment Sensing | Test & Measurement Equipment |
Use Scenario: Signal conditioning for CO₂, humidity, and VOC sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Dual-channel buffer and filter stage for multi-sensor fusion, operating from 5 V vehicle rail. Use Value: SOIC-8 package and –40°C to 85°C rating meet AEC-Q200 Grade 2 requirements for under-dash placement. | Use Scenario: Active filtering and gain control in benchtop multimeters and data acquisition systems. IC Role / Device Role / Timing Role: Low-drift DC amplifier in auto-zeroing circuits and programmable gain stages. Use Value: 0.3 μV/°C VIO drift and 65–85 dB CMRR ensure stable accuracy across ambient temperature variations during calibration. |
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 |
|---|---|---|---|
| TLC272CD | Lower offset grade (10 mV max), wider temp range (0°C to 70°C), same SOIC-8 package | Better suited for cost-sensitive consumer applications where 0.1% DC accuracy is sufficient | Select when budget constraints outweigh need for sub-2 mV offset in industrial designs |
| TLV272IDR | Lower supply current (1.25 mA typ), rail-to-rail input/output, but higher VIO (3 mV max) and lower PSRR (70 dB) | Optimized for ultra-low-power portable devices; less robust in noisy industrial settings | Prefer for battery life-critical designs where 4.5 MHz GBW and 10.8 nV/√Hz noise are secondary |
Compared with TLC272CD and TLV272IDR, the TLC272BID offers the best balance of low offset (2 mV), low noise (10.8 nV/√Hz), and industrial temperature range (–40°C to 85°C) in SOIC-8 - making it optimal for precision sensor front-ends requiring long-term DC stability without trimming.
Availability
TLC272BID is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, automotive cabin environment sensing, and test & measurement equipment requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLC272BID 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 op-amp innovation and broad manufacturing scale.
The TLC27xx family was designed specifically for precision analog signal conditioning in cost-sensitive industrial and instrumentation systems - delivering BiFET-like performance with CMOS power efficiency and single-supply simplicity.
FAQ
What is the maximum input offset voltage specification for TLC272BID at 25°C?
The TLC272BID has a maximum input offset voltage of 2000 µV (2 mV) at 25°C, as specified in the Electrical Characteristics table for TLC272BI devices under VDD = 5 V. This value applies across the full operating temperature range of –40°C to +85°C, with a worst-case drift of 0.3 µV/°C between 25°C and 85°C. The TLC272BID's offset performance makes it suitable for applications requiring better than 0.1% DC accuracy without external trimming.
Does TLC272BID support true rail-to-rail input operation?
No, the TLC272BID does not support rail-to-rail input. Its common-mode input voltage range extends to –0.1 V below the negative rail (ground in single-supply mode) and up to VDD – 1.5 V at temperatures other than 25°C. While this enables ground-referenced inputs, the upper limit does not reach the positive rail. For true rail-to-rail input capability, consider alternatives like the TLV272IDR - though that part trades off higher offset voltage and lower PSRR compared to the TLC272BID.
What is the recommended bypass capacitor configuration for TLC272BID in single-supply applications?
TI recommends using a 0.1 µF ceramic capacitor placed as close as possible to Pins 4 (V–) and 8 (V+) of the TLC272BID, with short low-inductance traces to ground. For systems with high digital switching noise, add a 10 µF tantalum or aluminum electrolytic capacitor in parallel on the same supply rail. This dual-capacitor approach suppresses both high-frequency ringing (via the 0.1 µF) and low-frequency droop (via the 10 µF), ensuring stable operation in mixed-signal PCB layouts where the TLC272BID shares supply rails with microcontrollers or ADCs.
Can unused amplifier sections in TLC272BID be left floating?
No, unused amplifier sections in the TLC272BID must not be left floating. TI explicitly recommends configuring unused channels as grounded unity-gain followers - connecting the non-inverting input to ground, the inverting input to the output, and leaving the output unconnected except to its own feedback path. This prevents phase inversion, oscillation, or increased supply current due to internal node instability. Leaving inputs or outputs unconnected risks unpredictable behavior and violates the device's absolute maximum ratings for input voltage.
Is TLC272BID qualified for automotive applications per AEC-Q200?
The TLC272BID is not officially AEC-Q200 qualified. Its specified operating temperature range is –40°C to +85°C (I-suffix), which overlaps Grade 3 (–40°C to +85°C) but lacks the required stress testing, failure analysis, and qualification documentation mandated by AEC-Q200. For automotive cabin sensing applications, designers may use the TLC272BID with internal validation, but TI recommends the TLV272QDRQ1 - an AEC-Q200 Grade 2 qualified dual op-amp - when formal compliance is required. The TLC272BID remains appropriate for industrial and medical applications within its rated range.
TLC272BID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 5.3V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 290 µV
- Current - Supply:
- 1.4mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC272BID FAQ
1.How can I place an order for TLC272BID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272BID 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 TLC272BID reliable?
The price and inventory of TLC272BID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272BID is usually 5 days.
3.What payment methods are accepted for TLC272BID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272BID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272BID?
TLC272BID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272BID 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 TLC272BID?
For technical support, including TLC272BID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272BID requirements.
6.How does Aetrix verify that TLC272BID is sourced from the original manufacturer or authorized distributors?
All TLC272BID 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 TLC272BID meets industry standards.
7.What is the process for return or replacement of TLC272BID?
All TLC272BID units undergo pre-shipment inspection (PSI). If there is an issue with TLC272BID, 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 TLC272BID part is unused and in its original packaging.
Return procedure for TLC272BID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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