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Texas Instruments TLC2272CPS
- Part No.:
- TLC2272CPS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC2272CPS.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:294
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Product details
Overview
TLC2272CPS 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, ±500 µA output drive, and rail-to-rail swing from ±2.2 V to ±8 V supplies - used in transducer interfaces and battery-powered signal conditioning.
For engineers reviewing the TLC2272CPS datasheet, TLC2272CPS pinout, TLC2272CPS application, or TLC2272CPS equivalent, key selection criteria include input bias current (1 pA typ), input offset voltage (≤950 µV for A-grade), common-mode input range extending to negative rail, low-noise performance, and split/single-supply compatibility.
Technical Context
The TLC2272CPS employs advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining high input impedance (>10¹² Ω) and ultra-low input bias current (1 pA typical). Its architecture supports stable unity-gain operation with 50° phase margin and 10 dB gain margin under 10 kΩ load and 100 pF capacitive load.
It operates across ±2.2 V to ±8 V supply ranges with full characterization at ±5 V and 5 V single supply, enabling direct interfacing with 12-bit and 16-bit ADCs requiring wide dynamic range and low distortion (THD+N = 0.0011% at AV = 1, f = 20 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz at AV = 10 without excessive phase lag. |
| Slew rate | 3.6 V/µs - supports clean 20-kHz sine-wave output at ±2.3 V peak with <0.0011% THD+N. |
| Input voltage noise | 9 nV/√Hz at 1 kHz - critical for amplifying low-level signals from piezoelectric or strain-gauge transducers. |
| Input bias current | 1 pA typical - minimizes voltage error in high-impedance sensor networks (e.g., pH electrodes, photodiode TIA inputs). |
| Common-mode input range | Extends to VDD− - allows direct sensing of signals referenced to ground in single-supply systems. |
| Output voltage swing | Within 15 mV of rails at ±20 µA - maximizes usable dynamic range when driving SAR or sigma-delta ADCs. |
| Supply current per channel | 2.4 mA at ±5 V - enables dual-channel precision amplification in portable equipment with tight power budgets. |
Pinout & Package
Package: SOIC-8 (3.91 mm × 4.90 mm), surface-mount, plastic body, standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplified output of Channel 1; rail-to-rail capable, drives ≥±500 µA into 10 kΩ load. |
| 2 | IN1− | Inverting input of Channel 1; high-impedance node (10¹² Ω), accepts signals down to VDD−. |
| 3 | IN1+ | Non-inverting input of Channel 1; same impedance and common-mode range as IN1−. |
| 4 | VDD−/GND | Negative supply terminal; serves as ground reference in single-supply mode (0 V) or negative rail in split-supply (e.g., −5 V). |
| 5 | IN2+ | Non-inverting input of Channel 2; electrically isolated from Channel 1, identical specs. |
| 6 | IN2− | Inverting input of Channel 2; matched offset and bias characteristics to Channel 1 inputs. |
| 7 | OUT2 | Amplified output of Channel 2; independent output stage, no crosstalk beyond specified PSRR (80 dB). |
| 8 | VDD+ | Positive supply terminal; accepts +2.2 V to +16 V (single) or ±2.2 V to ±8 V (split) per recommended conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >99% of supply voltage range at light loads, preserving ADC full-scale utilization in 3.3 V or 5 V systems. |
| Low input bias current | 1 pA typical enables accurate amplification of nanoamp-level currents from high-Z sources without guard traces. |
| Low input voltage noise | 9 nV/√Hz at 1 kHz reduces integrated noise floor in bandwidth-limited sensor front-ends (e.g., <100 kHz). |
| Split- and single-supply support | Fully characterized at ±5 V and 5 V - eliminates need for separate design variants across power architectures. |
| Input common-mode range to VDD− | Allows direct interface with grounded sensors (e.g., thermocouples, RTDs) without level-shifting circuitry. |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-amplitude signals from piezoelectric accelerometers in structural health monitoring units. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail output driving 16-bit SAR ADC input. Use Value: 1 pA input bias avoids loading high-impedance transducer elements; 9 nV/√Hz noise preserves SNR in sub-mV signal bands. |
Use Scenario: Signal conditioning in handheld blood glucose meters operating from coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel amplifier for simultaneous glucose sensor and temperature compensation paths. Use Value: 2.4 mA total supply current extends battery life; rail-to-rail output ensures full ADC code utilization at declining supply voltage. |
| White Goods Control | ADC Driver for Industrial Sensors |
Use Scenario: Motor current sensing and temperature feedback in inverter-driven refrigerator compressors. IC Role / Device Role / Timing Role: Dual op-amp performing current shunt amplification and NTC signal buffering. Use Value: Common-mode input range to VDD− enables direct connection to low-side shunt; ±8 V rating supports 24 V system rails. |
Use Scenario: Driving the input of a 12-bit successive-approximation ADC in programmable logic controller analog input modules. IC Role / Device Role / Timing Role: Low-noise, fast-settling buffer isolating sensor from ADC sampling kickback. Use Value: 1.5 µs settling time to 0.1% supports >500 kSPS throughput; 50° phase margin ensures stability with ADC input capacitance. |
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 |
|---|---|---|---|
| TLV2432IDR | Higher quiescent current (1.3 mA/channel), lower GBW (2.5 MHz), no A-grade option (max VIO = 1.5 mV). | Optimized for higher output drive (±30 mA) and wider input voltage range (beyond rails), not ultra-low bias current. | Select TLV2432IDR when driving heavy capacitive loads or requiring enhanced output short-circuit robustness over ultra-low IIB. |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C max drift, 60 nVPP 0.1–10 Hz noise, but higher supply current (17 µA/channel) and lower GBW (350 kHz). | Targeted at DC-precision applications (e.g., weigh scales, medical ECG), not wideband sensor conditioning. | Select OPA2333AIDR only when microvolt-level long-term offset stability outweighs bandwidth and noise requirements. |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2272CPS uniquely balances rail-to-rail output, 1-pA bias current, 9-nV/√Hz noise, and 2.25-MHz bandwidth - making it optimal for battery-powered, high-impedance, medium-speed sensor interfaces where all four attributes are simultaneously required.
Availability
TLC2272CPS is available at Aetrix Electronics and suitable for transducer interfaces, battery-powered monitoring systems, and white goods control requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TLC2272CPS 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 broad industrial, automotive, and consumer market reach.
The TLC227x family was designed as a performance upgrade to the TLC27x series, targeting precision, low-noise, rail-to-rail output amplification in space-constrained, low-power systems requiring high input impedance and wide supply flexibility.
FAQ
What is the maximum supply voltage range supported by the TLC2272CPS?
The TLC2272CPS supports a total supply voltage range of ±2.2 V to ±8 V in split-supply mode, or 4.4 V to 16 V in single-supply configuration. Absolute maximum ratings specify ±8 V on VDD+ and VDD−, with differential input voltage limited to ±16 V. Operation outside recommended conditions risks parametric degradation or permanent damage.
Does the TLC2272CPS have rail-to-rail input capability?
No, the TLC2272CPS features rail-to-rail *output* swing but its common-mode input voltage range extends only to VDD− and up to VDD+ −1.5 V. For example, at ±5 V supply, VICR is –5.3 V to +3.5 V - meaning the positive input cannot reach the +5 V rail. True rail-to-rail input requires devices like the TLV2462.
What is the input offset voltage specification for the TLC2272CPS?
The TLC2272CPS is part of the standard TLC2272 grade (non-A), with maximum input offset voltage of 2500 µV at TA = 25°C and 3000 µV across full temperature range (0°C to 70°C). The A-grade variant (TLC2272ACPS) specifies ≤950 µV max at 25°C - confirm ordering code suffix to ensure correct grade.
Can the TLC2272CPS drive a 100-pF capacitive load stably?
Yes, the TLC2272CPS is characterized for stability with 100 pF capacitive load and 10 kΩ resistive load, exhibiting 52° phase margin and 10 dB gain margin at unity gain. Layout best practices (short traces, local bypassing) are still required; for heavier loads (>500 pF), external isolation resistor or gain ≥2 is recommended.
Is the TLC2272CPS suitable for use with 3.3-V ADCs?
Yes - the TLC2272CPS delivers rail-to-rail output swing within 15 mV of both rails at ±20 µA, enabling full-scale utilization of 3.3-V ADCs when powered from 3.3 V single supply (VDD+ = 3.3 V, VDD− = 0 V). Its common-mode input range includes ground, supporting direct connection to grounded sensors feeding the ADC.
TLC2272CPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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-SO
TLC2272CPS FAQ
1.How can I place an order for TLC2272CPS through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272CPS 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 TLC2272CPS reliable?
The price and inventory of TLC2272CPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272CPS is usually 5 days.
3.What payment methods are accepted for TLC2272CPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272CPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272CPS?
TLC2272CPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272CPS 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 TLC2272CPS?
For technical support, including TLC2272CPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272CPS requirements.
6.How does Aetrix verify that TLC2272CPS is sourced from the original manufacturer or authorized distributors?
All TLC2272CPS 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 TLC2272CPS meets industry standards.
7.What is the process for return or replacement of TLC2272CPS?
All TLC2272CPS units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272CPS, 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 TLC2272CPS part is unused and in its original packaging.
Return procedure for TLC2272CPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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