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Texas Instruments TLC2272CDRG4
- Part No.:
- TLC2272CDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272CDRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,095
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Product details
Overview
TLC2272CDRG4 from Texas Instruments is a dual rail-to-rail output operational amplifier in SOIC-8 package, delivering 2.2-MHz gain-bandwidth, 3.6-V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, 1-pA typical input bias current, and ±5-V supply operation with output swing to both rails. It serves signal conditioning in transducer interfaces and battery-powered monitoring systems.
For engineers reviewing the TLC2272CDRG4 datasheet, TLC2272CDRG4 pinout, TLC2272CDRG4 application, or TLC2272CDRG4 equivalent, key selection criteria include rail-to-rail output swing under ±5-V supplies, low-noise performance for high-impedance sources, micropower dissipation (2.4 mA per amplifier), input offset voltage ≤950 µV (A-grade), and compatibility with ADC interfacing in single- or split-supply configurations.
Technical Context
The TLC2272CDRG4 uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current (1 pA typ) and low noise (9 nV/√Hz). Its common-mode input range extends to the negative rail, enabling ground-sensing capability in single-supply applications.
It operates across ±2.2 V to ±8 V supply ranges, supports full-specified performance at both 5-V single-supply and ±5-V split-supply conditions, and delivers stable unity-gain operation with 52° phase margin and 10 dB gain margin into 10-kΩ//100-pF loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V - supports industrial and automotive temperature ranges without derating |
| Gain-Bandwidth Product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz at AV = 10 |
| Slew Rate | 3.6 V/µs - supports 0–2.3 V step response in <1.5 µs to 0.1% (±5 V supply) |
| Input Offset Voltage | ≤950 µV max (TLC2272A variant) - reduces DC error in precision sensor amplification |
| Input Bias Current | 1 pA typical - preserves signal integrity with >1 GΩ source impedances (e.g., piezoelectric sensors) |
| Output Swing | Rail-to-rail - delivers full dynamic range into 10-kΩ load, e.g., 4.99 V at VOH (IOH = −20 µA, VDD+ = 5 V) |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than legacy TLC27x, critical for low-level analog signal conditioning |
Pinout & Package
Package: SOIC-8 (D package), body size 3.91 mm × 4.90 mm, surface-mount, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - rail-to-rail capable, drives 10-kΩ load to within 10 mV of either supply |
| 2 | IN− A | Inverting input A - high-impedance CMOS node (10¹² Ω), accepts signals down to VDD− |
| 3 | IN+ A | Non-inverting input A - same high-Z, rail-to-rail common-mode range as IN− A |
| 4 | VDD−/GND | Negative supply or ground reference - required for split-supply (±5 V) or single-supply (0 V/5 V) operation |
| 5 | IN+ B | Non-inverting input B - independent channel, identical specs and input structure to IN+ A |
| 6 | IN− B | Inverting input B - matched to IN− A; supports differential or single-ended configurations per channel |
| 7 | OUT B | Amplifier B output - fully independent, same rail-to-rail drive capability as OUT A |
| 8 | VDD+ | Positive supply - accepts up to +8 V (absolute max); supplies both amplifiers simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply-voltage dynamic range (e.g., –4.99 V to +4.99 V at ±5 V), maximizing ADC utilization |
| Low input bias current (1 pA) | Enables direct interface with ultra-high-impedance sources like pH electrodes or piezoelectric transducers |
| Low input voltage noise (9 nV/√Hz) | Reduces integrated noise floor in 10 Hz–10 kHz band by >50% vs. TLC272, improving SNR in sensor front-ends |
| Fully specified for single- and split-supply | Validated at 5 V (single) and ±5 V (split), eliminating design revalidation when changing supply architecture |
| Common-mode input range includes negative rail | Allows ground-referenced input signals in single-supply systems without level-shifting circuitry |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-level signals from piezoelectric accelerometers or strain gauges with >1 GΩ source impedance. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail output driving SAR ADC inputs. Use Value: 1-pA input bias prevents signal droop; 9 nV/√Hz noise preserves microvolt-level resolution. |
Use Scenario: Portable ECG or environmental sensor node operating from coin-cell or Li-ion battery. IC Role / Device Role / Timing Role: Dual-channel analog front-end for biopotential amplification and reference buffering. Use Value: 2.4 mA total supply current (per amplifier) extends battery life; rail-to-rail output maximizes ADC code usage. |
| White Goods Control | ADC Driver for Industrial DAQ |
Use Scenario: Temperature and motor current sensing in refrigerator or washing machine main control board. IC Role / Device Role / Timing Role: Dual op-amp providing isolated sensor signal conditioning and fault-detection comparator input buffering. Use Value: ±5-V operation matches system supply rails; –40°C to +125°C I-grade rating ensures reliability in hot chassis environments. |
Use Scenario: Driving 12-bit to 16-bit SAR ADC inputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-noise, fast-settling driver ensuring <0.1% settling before ADC sampling window. Use Value: 1.5 µs to 0.1% settling time and 52° phase margin guarantee stable acquisition without external compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2272IDR | Same silicon, I-grade (–40°C to +125°C) vs. C-grade (0°C to +70°C) in TLC2272CDRG4; identical electrical specs | Required for extended temperature industrial or automotive under-hood use | Select TLC2272IDR when ambient operating temperature exceeds 70°C |
| TLV2432IDR | Higher output drive (±30 mA vs. ±50 mA), wider input voltage range (rail-to-rail input), but higher supply current (1.2 mA/ch vs. 2.4 mA total for TLC2272CDRG4) | Better suited for driving heavy capacitive loads or multiplexed ADC inputs requiring rail-to-rail input | Choose TLV2432IDR only if input rail-to-rail capability or >50 mA output is mandatory; otherwise TLC2272CDRG4 offers lower noise and bias current |
Compared with TLC2272IDR, the TLC2272CDRG4 trades extended temperature range for lower cost and standard commercial qualification; versus TLV2432IDR, it prioritizes ultra-low input bias current and voltage noise over input-stage flexibility and output current, making it optimal for high-Z, low-noise sensor signal chains.
Availability
TLC2272CDRG4 is available at Aetrix Electronics and suitable for transducer interface, battery-powered monitoring, and white goods control applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLC2272CDRG4 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 ICs, embedded processors, and digital signal processing technologies, with decades of expertise in precision amplifiers and power management.
The TLC227x family was designed specifically for high-fidelity signal conditioning in resource-constrained systems-emphasizing rail-to-rail output, ultra-low input bias current, and low noise to replace legacy TLC27x op-amps without layout changes.
FAQ
What is the maximum supply voltage for TLC2272CDRG4?
The absolute maximum supply voltage for TLC2272CDRG4 is ±8 V across VDD+ and VDD−/GND terminals. Operation beyond this risks permanent damage. Recommended operating range is ±2.2 V to ±8 V, with full electrical specifications guaranteed across that span at temperatures from 0°C to 70°C (C-grade).
Does TLC2272CDRG4 support single-supply operation?
Yes, TLC2272CDRG4 is fully specified for single-supply operation-for example, with VDD+ = 5 V and VDD−/GND = 0 V. Its common-mode input range includes the negative rail, and output swings rail-to-rail, enabling true ground-sensing and full-scale ADC interfacing without level-shifting circuitry.
What is the input offset voltage specification for TLC2272CDRG4?
TLC2272CDRG4 belongs to the TLC2272A subfamily and has a maximum input offset voltage of 950 µV at TA = 25°C. Over full temperature range (0°C to 70°C), the limit is 1500 µV. This is confirmed in Section 6.5 of the official TI datasheet SLOS190H.
Is TLC2272CDRG4 pin-compatible with TLC272CP?
No, TLC2272CDRG4 is not pin-compatible with TLC272CP. While both are dual op-amps in SOIC-8 packages, TLC272CP assigns pin 4 to VDD− and pin 8 to VDD+, matching TLC2272CDRG4-but TLC2272CDRG4 has no connection on pins 3 and 5 in some variants, whereas TLC272CP uses all eight pins functionally. Layout redesign is required for replacement.
What thermal metrics apply to TLC2272CDRG4 in SOIC-8 package?
TLC2272CDRG4 in SOIC-8 (D package) has a junction-to-ambient thermal resistance (RθJA) of 115.6°C/W, junction-to-board (RθJB) of 55.9°C/W, and junction-to-case (top) (RθJC(top)) of 61.8°C/W. These values assume standard JEDEC 2-layer board conditions and are used to calculate safe operating area under continuous load.
TLC2272CDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- Rail-to-Rail
- Slew Rate:
- 3.6V/µs
- Gain Bandwidth Product:
- 2.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 2.4mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.4 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
TLC2272CDRG4 FAQ
1.How can I place an order for TLC2272CDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272CDRG4 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 TLC2272CDRG4 reliable?
The price and inventory of TLC2272CDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272CDRG4 is usually 5 days.
3.What payment methods are accepted for TLC2272CDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272CDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272CDRG4?
TLC2272CDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272CDRG4 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 TLC2272CDRG4?
For technical support, including TLC2272CDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272CDRG4 requirements.
6.How does Aetrix verify that TLC2272CDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC2272CDRG4 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 TLC2272CDRG4 meets industry standards.
7.What is the process for return or replacement of TLC2272CDRG4?
All TLC2272CDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272CDRG4, 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 TLC2272CDRG4 part is unused and in its original packaging.
Return procedure for TLC2272CDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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