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Texas Instruments TLC272CDRG4
- Part No.:
- TLC272CDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC272CDRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,056
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Product details
Overview
TLC272CDRG4 from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 10 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 to 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 TLC272CDRG4 datasheet, TLC272CDRG4 pinout, TLC272CDRG4 application, or TLC272CDRG4 equivalent, key selection criteria include input offset voltage grade (C-suffix = 10 mV), SOIC-8 package compatibility, single-supply common-mode range extending below ground, low bias current (<60 pA), and ESD-protected input stage.
Technical Context
The TLC272CDRG4 uses a polysilicon-gate CMOS process enabling high input impedance (>10¹² Ω), ultra-low input bias current (10–60 pA), 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.
Designed for precision DC-coupled and low-frequency AC applications, it achieves 80 dB typical CMRR and 120 dB supply-voltage rejection at 25°C, with internal latch-up immunity and ESD protection circuitry - making it suitable for noisy industrial environments where signal integrity and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max at 25°C - defines worst-case DC error in precision gain stages without trimming. |
| Supply Voltage Range | 3 V to 16 V - enables direct interface with 3.3 V, 5 V, and 12 V logic/system rails. |
| Unity-Gain Bandwidth | 4.5 MHz - supports stable closed-loop operation up to ~100 kHz with moderate gain. |
| Slew Rate | 0.5 V/μs - limits full-power bandwidth to ~80 kHz at 10 Vpp output swing. |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - ensures minimal added noise in high-impedance sensor interfaces. |
| Common-Mode Input Range | Extends to –0.1 V below negative rail (VDD = 5 V) - allows ground-referenced input signals in single-supply systems. |
| Output Voltage Swing | Within 50 mV of negative rail and 50 mV of positive rail - preserves dynamic range near supply rails. |
| Input Bias Current | 10–60 pA typical - permits use of >1 MΩ feedback networks without significant DC error. |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | High-impedance node accepting differential input signal; requires guard ring in PCB layout for low-leakage designs. |
| 2 | Non-inverting input (Amplifier A) | Reference or signal input for A amplifier; common-mode range extends below ground for single-supply biasing. |
| 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 rail-to-rail output swing reference. |
| 5 | Non-inverting input (Amplifier B) | Independent input for second amplifier; identical electrical specs to Pin 2. |
| 6 | Inverting input (Amplifier B) | Matches Pin 1 functionality; dual-channel layout enables matched-pair configurations. |
| 7 | Output (Amplifier B) | Electrically identical to Pin 3; supports independent signal path or cascaded gain stages. |
| 8 | Positive supply (V+) | Accepts 3–16 V; internal regulation not required; bypass capacitor recommended at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimized input stage | Common-mode range includes negative rail - eliminates need for level-shifting circuitry in 0–5 V systems. |
| Rail-to-rail output swing | Drives loads to within 50 mV of V– and V+ - maximizes usable signal range in low-voltage applications. |
| Ultra-low input bias current | ≤60 pA at 25°C - enables high-impedance transducer interfacing (e.g., pH electrodes, piezoresistive sensors) without significant error. |
| ESD protection circuitry | Rated per JEDEC JS-001 - protects against human-body-model discharges up to ±2 kV during handling and assembly. |
| Latch-up immunity | Designed-in robustness against I/O stress events - prevents destructive latch-up under transient overvoltage conditions. |
| Low 1/f noise corner | Typical 1/f corner <10 Hz - maintains low-noise performance in DC-coupled instrumentation amplifiers. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level mV-range outputs from strain gauges and RTDs in factory-floor PLC modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset correction and noise filtering before ADC sampling. Use Value: 10 mV max VIO and 0.3 μV/°C drift ensure stable calibration over temperature; SOIC-8 footprint simplifies rework in dense industrial PCBs. |
Use Scenario: Front-end amplification of ECG electrode signals in handheld patient monitors powered by 3.7 V Li-ion batteries. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with high-Z input and rail-to-rail output driving SAR ADC reference buffer. Use Value: 3 V minimum supply and 10.8 nV/√Hz noise enable clean signal acquisition at low power; ESD protection safeguards against clinical handling discharge. |
| Automotive Cabin Environment Monitoring | Test & Measurement Equipment |
Use Scenario: Signal conditioning for cabin CO₂ and humidity sensors in 12 V automotive infotainment head units. IC Role / Device Role / Timing Role: Dual-channel buffer and filter stage isolating sensor outputs from noisy digital subsystems. Use Value: 16 V max supply accommodates automotive load-dump transients; 80 dB CMRR rejects PWM switching noise from nearby DC-DC converters. |
Use Scenario: Precision reference voltage generation and DAC output buffering in benchtop multimeters and calibrators. IC Role / Device Role / Timing Role: Low-drift voltage follower and active filter component ensuring traceable accuracy across operating temperature. Use Value: 0.12 μV/°C typical offset drift and 120 dB PSRR maintain calibration stability; dual configuration reduces component count vs discrete op-amps. |
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 VIO (2 mV max), lower supply current (1.25 mA typ), but narrower supply range (2.7–16 V) and reduced CMRR (70 dB min). | Better for ultra-low-offset battery-powered devices; less robust in noisy industrial settings due to lower PSRR/CMRR. | Select TLV272IDR when offset budget is <2 mV and supply current <1.5 mA is mandatory; retain TLC272CDRG4 for higher noise immunity. |
| OPA2333AIDR | Zero-drift architecture (0.02 μV/°C drift), rail-to-rail I/O, but higher cost and 5.5 V max supply - no 12/16 V support. | Ideal for high-accuracy medical or scientific instruments requiring sub-μV drift; incompatible with 12 V automotive or industrial rails. | Choose OPA2333AIDR only when drift-critical DC accuracy justifies cost and voltage limitation; TLC272CDRG4 remains optimal for 3–16 V versatility. |
Compared with TLV272IDR and OPA2333AIDR, the TLC272CDRG4 offers broader supply voltage flexibility (3–16 V), proven industrial reliability, and balanced performance across offset, noise, and PSRR - making it the preferred choice for cost-sensitive, wide-rail precision analog systems where zero-drift is not mandatory.
Availability
TLC272CDRG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical instrumentation, and automotive cabin monitoring systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLC272CDRG4 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-amp design and manufacturing.
The TLC272 series belongs to TI's legacy precision CMOS op-amp product line, engineered for single-supply industrial and instrumentation applications demanding low offset, low noise, and rail-to-rail output capability without bipolar transistor limitations.
FAQ
What is the maximum supply voltage rating for the TLC272CDRG4?
The TLC272CDRG4 has an absolute maximum supply voltage rating of 18 V, with recommended operation from 3 V to 16 V across its 0°C to 70°C temperature range. Exceeding 18 V risks permanent damage, and operation above 16 V voids guaranteed specifications per the datasheet's Recommended Operating Conditions table.
Does the TLC272CDRG4 support true rail-to-rail input operation?
The TLC272CDRG4 does not support rail-to-rail input - its common-mode input voltage range extends to –0.1 V below the negative rail (enabling ground-referenced inputs in single-supply use), but the upper limit is VDD – 1 V at 25°C. Full rail-to-rail input capability is not specified for the TLC272CDRG4.
Can the TLC272CDRG4 drive capacitive loads directly?
The TLC272CDRG4 is not unity-gain stable with large capacitive loads; the datasheet specifies test conditions using CL = 20 pF. Driving >100 pF loads directly may cause peaking or oscillation. For capacitive loads >50 pF, external isolation resistance (e.g., 10–100 Ω in series with the output) is recommended to maintain stability.
What is the input offset voltage drift specification for the TLC272CDRG4?
The TLC272CDRG4 has a typical input offset voltage temperature coefficient of 0.3 μV/°C over 25°C to 70°C. This value is measured and specified in Section 4.3 of the datasheet and reflects long-term thermal stability - critical for applications requiring consistent DC accuracy across ambient temperature shifts.
Is the TLC272CDRG4 pin-compatible with other SOIC-8 dual op-amps like the LM358?
No, the TLC272CDRG4 is not pin-compatible with the LM358. While both are SOIC-8 dual op-amps, the LM358 uses a different pinout (e.g., LM358 Pin 1 = Output A, Pin 2 = Inverting Input A, Pin 3 = Non-inverting Input A), whereas TLC272CDRG4 assigns Pin 1 to Inverting Input A and Pin 2 to Non-inverting Input A - requiring PCB layout revision for substitution.
TLC272CDRG4 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:
- 1.1 mV
- 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
TLC272CDRG4 FAQ
1.How can I place an order for TLC272CDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272CDRG4 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 TLC272CDRG4 reliable?
The price and inventory of TLC272CDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272CDRG4 is usually 5 days.
3.What payment methods are accepted for TLC272CDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272CDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272CDRG4?
TLC272CDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272CDRG4 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 TLC272CDRG4?
For technical support, including TLC272CDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272CDRG4 requirements.
6.How does Aetrix verify that TLC272CDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC272CDRG4 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 TLC272CDRG4 meets industry standards.
7.What is the process for return or replacement of TLC272CDRG4?
All TLC272CDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC272CDRG4, 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 TLC272CDRG4 part is unused and in its original packaging.
Return procedure for TLC272CDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC272CDRG4 Tags
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