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Texas Instruments TLC2272ACD
- Part No.:
- TLC2272ACD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272ACD.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:16,150
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Product details
Overview
TLC2272ACD from Texas Instruments is a dual rail-to-rail output operational amplifier designed for precision signal conditioning in low-power, high-impedance sensor interfaces. It delivers 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 rail-to-rail output swing - enabling direct interfacing with 5-V or ±5-V ADCs in battery-powered instrumentation.
For engineers reviewing the TLC2272ACD datasheet, TLC2272ACD pinout, TLC2272ACD application, or TLC2272ACD equivalent, key selection criteria include input offset voltage ≤950 μV (max), common-mode input range extending to VDD−, low-noise performance below 10 nV/√Hz, and SOIC-8 packaging compatibility with legacy analog layouts.
Technical Context
The TLC2272ACD uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage operates with common-mode voltage down to the negative rail, supporting single-supply operation from 4.4 V to 16 V or split supplies up to ±8 V.
It features unity-gain stable compensation, 50° phase margin, and 10 dB gain margin under 10-kΩ load and 100-pF capacitive load conditions - ensuring robust stability in transducer interface and active filter configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - supports closed-loop bandwidth up to ~2.2 MHz at unity gain for fast-sampling sensor front-ends. |
| Slew rate | 3.6 V/μs - enables full-scale 4.6-VPP output swing within <3.2 μs for ±5-V supplies, suitable for dynamic signal acquisition. |
| Input offset voltage | ≤950 μV (max) - ensures ≤0.019% error at 5-V full-scale, critical for 12-bit+ precision measurement systems. |
| Input bias current | 1 pA (typical) - minimizes voltage error across high-impedance sources like piezoelectric sensors or pH electrodes. |
| Input voltage noise | 9 nV/√Hz at 1 kHz - provides superior SNR vs. older CMOS op-amps (e.g., TLC272), especially in low-frequency sensor amplification. |
| Common-mode input range | Extends to VDD− - allows direct sensing of signals referenced to ground in single-supply systems without level-shifting circuitry. |
| Supply voltage range | ±2.2 V to ±8 V or 4.4 V to 16 V - supports wide industrial supply rails and battery-operated designs from two AA cells to 12-V systems. |
Pinout & Package
TLC2272ACD is packaged in an 8-pin SOIC (D package) with body size 3.91 mm × 4.90 mm, compliant with JEDEC MS-012, and rated for commercial temperature range (0°C to 70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, Channel 1 | Delivers rail-to-rail voltage swing; capable of sourcing/sinking ±200 μA with <150 mV drop near rails. |
| 1IN− | Inverting input, Channel 1 | Differential input node; accepts common-mode voltages from VDD− to VDD+ −1.5 V. |
| 1IN+ | Non-inverting input, Channel 1 | High-impedance node (1012 Ω); ideal for passive sensor bridges or high-Z transducer connections. |
| VDD−/GND | Negative supply / Ground | Reference terminal for single-supply operation; must be connected directly to system ground plane. |
| VDD+ | Positive supply | Accepts 4.4–16 V (single) or ±2.2–±8 V (split); decoupling capacitor required per TI layout guidelines. |
| 2IN− | Inverting input, Channel 2 | Independent second channel input; electrically isolated from Channel 1 except via shared supply rails. |
| 2IN+ | Non-inverting input, Channel 2 | Matches Channel 1 specs; enables dual-channel signal conditioning without cross-talk in same package. |
| 2OUT | Output, Channel 2 | Functionally identical to 1OUT; supports independent gain stages or differential output configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >99% of supply rail-to-rail voltage range at ±200 μA load, maximizing ADC dynamic range utilization. |
| Low input bias current | 1-pA typical value preserves signal integrity when amplifying microamp-level currents from photodiodes or ion-selective electrodes. |
| Low-noise architecture | 9 nV/√Hz input voltage noise at 1 kHz enables accurate amplification of µV-level thermocouple or strain gauge outputs. |
| Single- and split-supply support | Fully specified from 4.4 V to 16 V (single) or ±2.2 V to ±8 V (split), eliminating need for separate op-amp families across power architectures. |
| Input common-mode range includes negative rail | Allows direct amplification of ground-referenced signals (e.g., current-sense shunts) without input biasing resistors or level shifters. |
Applications
| Transducer Interface | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying low-level output from piezoelectric accelerometers or capacitive pressure sensors with high source impedance (>1 MΩ). IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner providing gain, filtering, and rail-to-rail buffering before ADC sampling. Use Value: 1-pA input bias current prevents signal attenuation; rail-to-rail output ensures full use of 5-V ADC input range. | Use Scenario: Signal conditioning in portable gas analyzers or handheld ECG monitors powered by two AA batteries (3 V nominal). IC Role / Device Role / Timing Role: Dual-channel amplifier for simultaneous sensor excitation and response acquisition in ultra-low-power mode. Use Value: 2.4-mA typical supply current per amplifier enables >100-hour battery life; rail-to-rail output eliminates need for level-shifting ICs. |
| White Goods Control | Analog Front-End for Microcontrollers |
Use Scenario: Monitoring motor current, temperature, and door position in refrigerators and washing machines operating across 0°C–70°C ambient. IC Role / Device Role / Timing Role: Robust analog signal conditioner interfacing thermistors, Hall sensors, and shunt resistors to MCU ADC inputs. Use Value: Specified over 0°C–70°C with ≤950 μV max VIO ensures consistent accuracy without calibration drift in consumer appliance environments. | Use Scenario: Driving SAR or sigma-delta ADC inputs in industrial PLC modules where MCU I/O lacks drive strength or rail-to-rail capability. IC Role / Device Role / Timing Role: Output buffer and gain stage ensuring clean, full-scale analog signals reach the ADC without distortion or clipping. Use Value: 3.6-V/μs slew rate and 2.25-MHz GBW support 100-kSPS sampling with <0.01% settling error; SOIC-8 footprint matches standard MCU board layouts. |
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 |
|---|---|---|---|
| TLC2272CD | Higher max input offset voltage (2500 μV vs. 950 μV); otherwise identical AC/DC specs and pinout. | Less suitable for precision DC measurements requiring <0.05% accuracy; acceptable for AC-coupled or moderate-accuracy systems. | Select TLC2272CD only if cost sensitivity outweighs offset-critical performance requirements. |
| TLV2432IDR | Higher supply current (1.2 mA/ch vs. 2.4 mA total), wider input voltage range (rail-to-rail input), lower noise (11 nV/√Hz), but lower GBW (2.3 MHz). | Better for rail-to-rail input + output applications; less optimal for high-speed settling or low-noise DC gain stages. | Choose TLV2432IDR when input common-mode range beyond VDD− is required, or when lower quiescent current is prioritized over noise floor. |
Compared with TLC2272CD and TLV2432IDR, the TLC2272ACD uniquely balances low offset (≤950 μV), low noise (9 nV/√Hz), and rail-to-rail output in a legacy SOIC-8 package - making it optimal for cost-sensitive, precision analog front-ends where input rail-to-rail capability is not mandatory.
Availability
TLC2272ACD is available at Aetrix Electronics and suitable for white goods control, battery-powered instrumentation, and transducer interface applications requiring stable component supply across extended production lifecycles.
Supply support for TLC2272ACD 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, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLC227x family was engineered to upgrade legacy TLC27x op-amps with rail-to-rail output, lower noise, and improved input offset - targeting precision analog signal chains in cost-sensitive consumer and industrial equipment.
FAQ
What is the maximum input offset voltage specification for TLC2272ACD?
The TLC2272ACD has a maximum input offset voltage of 950 μV at TA = 25°C, and 1500 μV across the full commercial temperature range (0°C to 70°C). This specification is guaranteed per TI's SLOS190H datasheet and applies specifically to the 'A' grade variant, distinguishing it from the standard TLC2272CD (2500 μV max). The TLC2272ACD's tighter offset enables higher DC accuracy in precision measurement circuits without trimming.
Does TLC2272ACD support single-supply operation?
Yes, the TLC2272ACD is fully specified for single-supply operation from 4.4 V to 16 V. Its input common-mode range extends to the negative rail (VDD−/GND), and its rail-to-rail output can swing within 10 mV of both supply rails under light loads. This allows direct interfacing with 5-V microcontrollers and ADCs without level-shifting components - a key design advantage confirmed in TI's recommended operating conditions table.
What package type is used for TLC2272ACD?
The TLC2272ACD is supplied in an 8-pin SOIC (D package) with dimensions 3.91 mm × 4.90 mm, per TI's mechanical data in SLOS190H. This JEDEC-standard package is compatible with automated assembly processes and widely supported in PCB design libraries. No other package variants (e.g., TSSOP or PDIP) are assigned to the 'CD' suffix - only SOIC-8 is valid for TLC2272ACD.
How does the noise performance of TLC2272ACD compare to older TI op-amps?
The TLC2272ACD delivers 9 nV/√Hz input voltage noise at 1 kHz - approximately half the noise of the TLC272 (18 nV/√Hz) and significantly lower than general-purpose bipolar op-amps like LM358 (40 nV/√Hz). This 50% noise reduction directly improves signal-to-noise ratio in low-level sensor amplification, as verified in TI's typical characteristics plots and electrical specifications tables for VDD = 5 V and VDD± = ±5 V conditions.
Is TLC2272ACD pin-compatible with TLC2272CD?
Yes, the TLC2272ACD is pin-compatible with the TLC2272CD - both use identical SOIC-8 pinout, supply connections, and channel assignments. The only functional difference lies in the input offset voltage specification (950 μV max for 'A' grade vs. 2500 μV max for standard grade); all other DC and AC parameters, thermal behavior, and layout requirements remain identical per TI's datasheet revision history and device comparison tables.
TLC2272ACD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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
TLC2272ACD FAQ
1.How can I place an order for TLC2272ACD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272ACD 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 TLC2272ACD reliable?
The price and inventory of TLC2272ACD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272ACD is usually 5 days.
3.What payment methods are accepted for TLC2272ACD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272ACD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272ACD?
TLC2272ACD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272ACD 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 TLC2272ACD?
For technical support, including TLC2272ACD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272ACD requirements.
6.How does Aetrix verify that TLC2272ACD is sourced from the original manufacturer or authorized distributors?
All TLC2272ACD 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 TLC2272ACD meets industry standards.
7.What is the process for return or replacement of TLC2272ACD?
All TLC2272ACD units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272ACD, 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 TLC2272ACD part is unused and in its original packaging.
Return procedure for TLC2272ACD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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