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Texas Instruments TLC272IDG4
- Part No.:
- TLC272IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC272IDG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,494
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Product details
Overview
TLC272IDG4 from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 5 mV max input offset voltage (TLC272A grade), 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 over –40°C to +85°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/μs slew rate - ideal for sensor signal conditioning in industrial data acquisition systems.
For engineers reviewing the TLC272IDG4 datasheet, TLC272IDG4 pinout, TLC272IDG4 application, or TLC272IDG4 equivalent, key selection criteria include its low input bias current (<60 pA), wide common-mode input range extending below ground, high CMRR (65–85 dB), and SOIC-8 packaging suitable for space-constrained analog front-ends.
Technical Context
The TLC272IDG4 uses a polysilicon-gate CMOS process to achieve ultra-high input impedance (>10¹² Ω) and low input bias current, enabling high-impedance source interfacing without significant error. Its input stage supports common-mode voltages down to –0.1 V (at VDD = 5 V) and up to VDD – 1.5 V, making it compatible with single-supply configurations where reference biasing is required.
Designed for precision analog signal processing, the device integrates ESD protection and latch-up immunity while maintaining low noise and stable phase margin (60°). It exhibits low offset voltage drift (0.3 μV/°C) and supply-voltage rejection ratio up to 120 dB, supporting robust performance across varying rail conditions in mixed-signal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 5 mV max (TLC272A grade, full temperature range) - enables accurate DC-coupled amplification without frequent nulling. |
| Input Bias Current | <60 pA typical at 25°C - preserves signal integrity when interfacing with high-impedance sensors (e.g., pH electrodes, piezoresistive bridges). |
| Unity-Gain Bandwidth | 4.5 MHz - supports medium-speed signal conditioning including anti-alias filtering and active filter stages. |
| Slew Rate | 0.5 V/μs - sufficient for <100 kHz full-power sine wave output with minimal distortion in buffered configurations. |
| Common-Mode Input Range | –0.1 V to VDD – 1.5 V - allows direct connection to ground-referenced sources in single-supply systems. |
| Output Voltage Swing | Within 50 mV of negative rail and within 50 mV of positive rail (at RL = 10 kΩ) - maximizes dynamic range in low-voltage applications. |
| Supply Voltage Range | 4 V to 16 V (–40°C to +85°C) - compatible with standard industrial rails (5 V, 12 V) and legacy TTL/HCMOS logic supplies. |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body size, surface-mount, moisture-sensitive level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance node accepting differential signal; requires guard ring routing in PCB layout to suppress leakage-induced offset. |
| 2 | Non-Inverting Input (Amplifier A) | Accepts reference or sensor signal; common-mode range extends below ground, enabling true single-supply biasing. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; output swing includes negative rail - simplifies level-shifting in unipolar systems. |
| 4 | Negative Supply (V–) | Connected to ground in single-supply mode; must be decoupled with 0.1 μF ceramic capacitor near pin. |
| 5 | Non-Inverting Input (Amplifier B) | Independent second channel input; identical electrical specs to Pin 2 - supports dual-channel signal paths without cross-talk. |
| 6 | Inverting Input (Amplifier B) | Matches Pin 1 performance; usable for differential pair configuration or independent gain stage. |
| 7 | Output (Amplifier B) | Electrically isolated from Pin 3; supports dual-output topologies such as instrumentation amp preamp or dual-filter bank. |
| 8 | Positive Supply (V+) | Accepts 4–16 V DC; internal ESD protection clamps transients - external TVS recommended only for >2 kV HBM environments. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 50 mV of both supply rails under 10 kΩ load - eliminates need for level-shifting circuitry in 3.3 V or 5 V systems. |
| Ultra-low input bias current | <60 pA typical - enables use with megohm-range sensor elements (e.g., thermistors, photodiodes) without measurable loading error. |
| Single-supply optimized input stage | Common-mode range includes ground (–0.1 V min) - permits direct interface to 0–VREF sensor outputs without AC coupling or bias resistors. |
| Low 1/f noise corner | 10.8 nV/√Hz at 1 kHz - outperforms bipolar op-amps above 50 kΩ source impedance, critical for precision DC measurement. |
| ESD-protection circuitry | Rated to 2 kV HBM - reduces risk of field failure during handling and assembly without requiring additional protection components. |
Applications
| Industrial Sensor Interface | Medical Instrumentation Front-End |
|---|---|
Use Scenario: Amplifying low-level output from strain gauge bridges in weigh scales and pressure transducers operating from 5 V single supply. IC Role / Device Role / Timing Role: Precision dual op-amp configured as instrumentation amplifier first stage and reference buffer. Use Value: 5 mV max offset and 0.3 μV/°C drift ensure <0.1% full-scale error over temperature without calibration. |
Use Scenario: Conditioning ECG electrode signals in portable patient monitors with battery-powered 3.3 V supply. IC Role / Device Role / Timing Role: Dual-channel DC-coupled amplifier for lead-I/lead-II differential inputs with integrated right-leg drive buffer. Use Value: Rail-to-rail output and sub-60 pA bias current prevent baseline wander and preserve microvolt-level signal fidelity. |
| Automotive Cabin Environment Sensing | Programmable Logic Controller Analog I/O |
Use Scenario: Signal conditioning for cabin temperature and humidity sensors in automotive HVAC control modules. IC Role / Device Role / Timing Role: Dual op-amp used for RTD linearization and capacitive humidity sensor charge amplification. Use Value: Wide 4–16 V supply range accommodates vehicle battery fluctuations; –40°C to +85°C rating ensures reliability in under-dash environments. |
Use Scenario: Isolated analog input module converting 0–10 V industrial sensor signals to ADC inputs in PLC backplanes. IC Role / Device Role / Timing Role: Dual op-amp implementing programmable gain stage and anti-alias filter before sigma-delta ADC. Use Value: 4.5 MHz bandwidth and 65–85 dB CMRR reject noise from adjacent 24 VDC control lines in dense I/O racks. |
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 |
|---|---|---|---|
| TLV272IDR | Lower supply current (1.25 mA vs 3.2 mA), 2.2 MHz GBW, 2.5 mV max offset (A-grade), same SOIC-8 package. | Better suited for battery-powered devices requiring lower quiescent power; reduced bandwidth limits high-frequency filtering. | Select TLV272IDR when power budget is constrained and 2.2 MHz bandwidth suffices for signal chain requirements. |
| OPA2333AIDR | Zero-drift architecture, 12 μV max offset, 0.02 μV/°C drift, 350 kHz GBW, higher cost, same SOIC-8 footprint. | Required for ultra-stable DC measurements (e.g., precision weight scales); not suitable for >100 kHz signal paths due to limited bandwidth. | Choose OPA2333AIDR only when sub-20 μV offset and near-zero drift outweigh bandwidth and cost trade-offs. |
Compared with TLV272IDR, TLC272IDG4 offers higher bandwidth and better noise performance but consumes more supply current; versus OPA2333AIDR, it trades zero-drift stability for wider bandwidth and lower cost - making TLC272IDG4 optimal for general-purpose industrial signal conditioning where moderate DC accuracy suffices.
Availability
TLC272IDG4 is available at Aetrix Electronics and suitable for industrial sensor interface, medical instrumentation front-end, automotive cabin environment sensing, and programmable logic controller analog I/O requiring stable component supply across extended temperature ranges.
Supply support for TLC272IDG4 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 company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog design.
The TLC272IDG4 belongs to TI's precision CMOS op-amp family, engineered for single-supply industrial and medical signal conditioning where low bias current, rail-to-rail output, and robust ESD tolerance are essential.
FAQ
What is the maximum operating temperature range for the TLC272IDG4?
The TLC272IDG4 is rated for operation from –40°C to +85°C, matching the I-suffix industrial temperature grade. This range is validated per TI's SLOS091F datasheet Section 4.2, with guaranteed performance for input offset voltage, CMRR, and supply current across the full span. The device remains functional beyond these limits but specifications are not assured outside this range. Always refer to the absolute maximum ratings table for thermal stress boundaries.
Does the TLC272IDG4 support true rail-to-rail input operation?
The TLC272IDG4 does not support rail-to-rail input - its common-mode input voltage range extends to –0.1 V (below ground) and up to VDD – 1.5 V, as specified in Section 4.3 of the datasheet. While this enables ground-referenced operation in single-supply systems, the upper limit falls short of the positive rail. For full rail-to-rail input capability, consider TI's TLV2462 or OPA2376 families instead.
Can the TLC272IDG4 drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes - the TLC272IDG4 delivers rail-to-rail output swing into a 10 kΩ load, with low-level output voltage (VOL) ≤50 mV and high-level output voltage (VOH) ≥VDD – 50 mV at 25°C, per Electrical Characteristics Tables 4.3 and 4.5. Performance holds across –40°C to +85°C, though VOL may increase slightly at temperature extremes. Load currents exceeding ±30 mA require external buffering.
What is the input offset voltage specification for the TLC272IDG4?
The TLC272IDG4 is the I-suffix variant of the TLC272A grade, specifying a maximum input offset voltage of 5 mV over the full –40°C to +85°C temperature range (Section 4.5, TLC272AI row). At 25°C, typical offset is 0.12 mV, with a temperature coefficient of 0.3 μV/°C. This grade balances cost and precision for industrial applications where occasional calibration is acceptable.
Is the TLC272IDG4 pin-compatible with other SOIC-8 dual op-amps like the LM358?
No - the TLC272IDG4 has the standard SOIC-8 pinout for dual op-amps (Pin 1 = OUT A, Pin 2 = –IN A, Pin 3 = +IN A, Pin 4 = V–, Pin 5 = +IN B, Pin 6 = –IN B, Pin 7 = OUT B, Pin 8 = V+), which matches LM358, TL072, and most industry-standard dual op-amps. However, electrical behavior differs significantly: TLC272IDG4 requires no input bias current compensation resistors, supports wider supply range (4–16 V), and offers superior CMRR and noise performance.
TLC272IDG4 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:
- 900 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
TLC272IDG4 FAQ
1.How can I place an order for TLC272IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272IDG4 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 TLC272IDG4 reliable?
The price and inventory of TLC272IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272IDG4 is usually 5 days.
3.What payment methods are accepted for TLC272IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272IDG4?
TLC272IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272IDG4 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 TLC272IDG4?
For technical support, including TLC272IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272IDG4 requirements.
6.How does Aetrix verify that TLC272IDG4 is sourced from the original manufacturer or authorized distributors?
All TLC272IDG4 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 TLC272IDG4 meets industry standards.
7.What is the process for return or replacement of TLC272IDG4?
All TLC272IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC272IDG4, 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 TLC272IDG4 part is unused and in its original packaging.
Return procedure for TLC272IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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