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Texas Instruments TLC272BCDRG4
- Part No.:
- TLC272BCDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC272BCDRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,308
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Product details
Overview
TLC272BCDRG4 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 3 V to 16 V over 0°C–70°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/μs slew rate - used in sensor signal conditioning, industrial analog front-ends, and battery-powered instrumentation.
For engineers reviewing the TLC272BCDRG4 datasheet, TLC272BCDRG4 pinout, TLC272BCDRG4 application, or TLC272BCDRG4 equivalent, key selection criteria include input offset voltage grade (2 mV), SOIC-8 package compatibility, single-supply common-mode range extending below ground, low-noise performance at high source impedances, and ESD-protected input stage design.
Technical Context
The TLC272BCDRG4 uses a polysilicon-gate CMOS process enabling ultra-low input bias current (<60 pA typical), high input impedance (>10¹² Ω), and stable offset voltage drift (0.3 µV/°C). Its input stage supports common-mode voltages down to –0.1 V (at VDD = 5 V) and output swing to within 50 mV of the negative rail.
This device belongs to the TLC27xx family of precision BiFET-alternative op-amps; it is not rail-to-rail input but provides extended common-mode range below ground and full rail-to-rail output capability - distinguishing it from general-purpose CMOS op-amps with limited input voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 2 mV max at 25°C - enables accurate DC-coupled amplification without external trimming in mid-precision applications. |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - ensures minimal added noise when amplifying low-level signals from high-impedance sources (e.g., piezoelectric sensors). |
| Unity-Gain Bandwidth | 4.5 MHz - supports stable closed-loop gain ≥1 configurations up to audio-frequency signal processing. |
| Slew Rate | 0.5 V/μs - limits large-signal transient response but sufficient for <10 kHz full-power bandwidth into 10 kΩ load. |
| Supply Voltage Range | 3 V to 16 V (0°C–70°C) - compatible with single Li-ion, 5 V logic rails, and 12 V industrial supplies without level-shifting. |
| Common-Mode Input Range | Extends to –0.1 V below negative rail (at VDD = 5 V) - allows direct interfacing with ground-referenced transducers in single-supply systems. |
| Output Voltage Swing | Within 50 mV of negative rail and ≥3.2 V from positive rail (VDD = 5 V) - preserves dynamic range in unipolar signal chains. |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, surface-mount, tape-and-reel compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance node accepting differential input signal; requires guard ring routing in PCB layout for leakage-sensitive applications. |
| 2 | Non-Inverting Input (Amplifier A) | Accepts reference or sensor signal; common-mode range extends below ground - enables true single-supply transducer interface. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; output swings to within 50 mV of GND - suitable for driving ADC reference buffers or low-side comparators. |
| 4 | Negative Supply (GND) | Reference return for both amplifiers; must be low-impedance and decoupled locally with 0.1 µF ceramic capacitor. |
| 5 | Non-Inverting Input (Amplifier B) | Independent second channel input; identical electrical specs to Pin 2 - enables dual-channel signal conditioning on one die. |
| 6 | Inverting Input (Amplifier B) | Matches Pin 1 behavior; polarity inversion relative to Pin 5 defines differential gain configuration in active filters or instrumentation amps. |
| 7 | Output (Amplifier B) | Electrically isolated from Pin 3; supports independent loading - used for dual-path signal processing or redundant monitoring paths. |
| 8 | Positive Supply (VDD) | Accepts 3–16 V DC; internal ESD protection clamps to VDD/GND rails - requires 10 µF bulk + 0.1 µF local bypass per supply pin. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimized input stage | Common-mode range includes negative rail (–0.1 V at VDD = 5 V), eliminating need for level-shifting circuitry in 0–5 V systems. |
| Ultra-low input bias current | <60 pA typical at 25°C - enables use with MΩ-range feedback networks and high-Z sensors without significant DC error. |
| Low-voltage noise density | 10.8 nV/√Hz at 1 kHz - outperforms bipolar op-amps above 50 kΩ source impedance, reducing total integrated noise in sensor interfaces. |
| ESD-protection circuitry | Integrated input clamp diodes rated to ±2 kV HBM - reduces risk of field failure during handling and board assembly. |
| Latch-up immunity | Designed-in robustness against I/O stress events - prevents destructive latch-up under transient overvoltage or reverse-bias conditions. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Amplifying millivolt-level outputs from RTDs, thermocouples, and strain gauges in factory-floor PLC modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with low offset and drift, referenced to system ground in 5 V single-supply architecture. Use Value: 2 mV max VIO and 0.3 µV/°C drift ensure ≤0.5% measurement error across 0–70°C ambient without calibration. |
Use Scenario: Front-end amplification of ECG electrode signals in handheld patient monitors powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier pre-stage with rail-to-rail output driving 12-bit SAR ADC inputs. Use Value: 3 V minimum supply and 10.8 nV/√Hz noise enable >70 dB SNR at 1 kHz while extending battery life beyond 8 hours. |
| Automotive Cabin Environment Monitoring | Test & Measurement Equipment |
|
Use Scenario: Signal conditioning for humidity and CO₂ sensors in automotive HVAC control units operating from 5 V regulated rail. IC Role / Device Role / Timing Role: Low-power dual op-amp implementing transimpedance conversion and filtering before microcontroller ADC sampling. Use Value: 1.12 mA typical supply current per amplifier and –0.1 V input common-mode range allow direct connection to grounded sensor elements. |
Use Scenario: Active filter section in benchtop multimeters and data loggers requiring stable DC accuracy and low-frequency noise performance. IC Role / Device Role / Timing Role: Dual-channel state-variable filter core with matched offset and drift characteristics across channels. Use Value: Tight VIO matching between amplifiers (≤2 mV) and 4.5 MHz GBW support 100 Hz–10 kHz bandpass filter implementation with <0.1% gain error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Lower offset (0.5 mV max), higher quiescent current (550 µA per amp), rail-to-rail input/output. | Better DC accuracy but higher power - preferred in battery-constrained designs needing RRO and sub-mV offset. | Select TLV2462IDR when rail-to-rail input common-mode range and lower VIO outweigh supply current penalty. |
| OPA2333AIDR | Zero-drift architecture, 12 µV max VIO, 0.02 µV/°C drift, 17 µA per amp supply current. | Superior long-term stability and temperature drift - used where calibration intervals exceed 6 months or ambient exceeds 70°C. | Choose OPA2333AIDR for metrology-grade accuracy and zero-drift performance in critical measurement nodes. |
Compared with TLV2462IDR and OPA2333AIDR, the TLC272BCDRG4 offers the lowest cost-per-channel among TI's precision dual CMOS op-amps while maintaining adequate DC precision (2 mV VIO) and noise (10.8 nV/√Hz) for industrial and portable instrumentation - making it optimal for cost-sensitive, moderate-accuracy applications with 3–16 V supply flexibility.
Availability
TLC272BCDRG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and automotive cabin monitoring systems requiring stable component supply, long-lifecycle availability, and SOIC-8 footprint compatibility.
Supply support for TLC272BCDRG4 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 expertise in precision op-amp design and manufacturing.
The TLC27xx product line was developed to provide cost-effective, BiFET-alternative precision amplifiers with CMOS input advantages - targeting industrial, medical, and test equipment where low bias current, low noise, and single-supply operation are essential.
FAQ
What is the maximum input offset voltage specification for TLC272BCDRG4?
The TLC272BCDRG4 has a maximum input offset voltage of 2 mV at 25°C and 3 mV across the full 0°C to 70°C operating temperature range. This value is specified for the "B" grade variant and reflects tighter initial calibration than the standard TLC272C (10 mV max), making it suitable for mid-precision analog signal chains without trimming.
Does TLC272BCDRG4 support true rail-to-rail input operation?
No, the TLC272BCDRG4 does not support rail-to-rail input. Its common-mode input voltage range extends to –0.1 V below the negative rail (GND) and up to VDD – 1 V at 25°C, but it cannot accept signals at the positive rail. However, its output is rail-to-rail - swinging within 50 mV of GND and ≥3.2 V from VDD when VDD = 5 V.
What is the recommended supply decoupling for TLC272BCDRG4?
TI recommends a 0.1 µF ceramic capacitor placed as close as possible to Pins 4 (GND) and 8 (VDD), plus a 10 µF bulk capacitor on the board's main 5 V rail. This dual-stage decoupling suppresses high-frequency noise and stabilizes the supply during output slewing - critical given the device's 0.5 V/μs slew rate and sensitivity to supply ripple.
Can unused amplifier sections in TLC272BCDRG4 be left floating?
No - unused amplifier sections must not be left floating. TI specifies connecting them as grounded unity-gain followers (non-inverting input tied to GND, output fed back to inverting input) to prevent oscillation, phase reversal, or increased supply current due to internal node instability in CMOS op-amps.
Is TLC272BCDRG4 suitable for driving capacitive loads?
The TLC272BCDRG4 is not unity-gain stable into heavy capacitive loads. It requires ≥10 kΩ series resistance between output and >100 pF capacitance to maintain phase margin >60°. For direct capacitive loading (e.g., ADC input hold capacitors), a small isolation resistor (20–100 Ω) and local 0.1 µF bypass are mandatory to avoid peaking or oscillation.
TLC272BCDRG4 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:
- 5.3V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 290 µV
- Current - Supply:
- 1.9mA (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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC272BCDRG4 FAQ
1.How can I place an order for TLC272BCDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272BCDRG4 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 TLC272BCDRG4 reliable?
The price and inventory of TLC272BCDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272BCDRG4 is usually 5 days.
3.What payment methods are accepted for TLC272BCDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272BCDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272BCDRG4?
TLC272BCDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272BCDRG4 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 TLC272BCDRG4?
For technical support, including TLC272BCDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272BCDRG4 requirements.
6.How does Aetrix verify that TLC272BCDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC272BCDRG4 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 TLC272BCDRG4 meets industry standards.
7.What is the process for return or replacement of TLC272BCDRG4?
All TLC272BCDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC272BCDRG4, 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 TLC272BCDRG4 part is unused and in its original packaging.
Return procedure for TLC272BCDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC272BCDRG4 Tags
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