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Texas Instruments TLC2272ID
- Part No.:
- TLC2272ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272ID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:892
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Product details
Overview
TLC2272ID from Texas Instruments is a dual rail-to-rail output operational amplifier designed for precision signal conditioning in single- or split-supply systems. It delivers 2.2 MHz gain-bandwidth, 3.6 V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, ±5 V supply operation, and rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2272ID datasheet, TLC2272ID pinout, TLC2272ID application, or TLC2272ID equivalent, key selection considerations include its 1-pA typical input bias current, 950 µV maximum input offset voltage (TLC2272A-grade), common-mode input range extending to the negative rail, low 2.4 mA supply current at ±5 V, and SOIC-8 packaging for standard PCB layouts.
Technical Context
The TLC2272ID uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage supports common-mode voltages down to VDD−, making it suitable for ground-referenced sensor interfaces without level-shifting circuitry.
It operates across ±2.2 V to ±8 V supply ranges, with full characterization at ±5 V and 5 V single-supply conditions. The device exhibits 75 dB typical CMRR and 95 dB typical PSRR, ensuring stable performance under varying supply and common-mode conditions in mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - enables stable unity-gain buffering and closed-loop amplification up to ~2 MHz with adequate phase margin. |
| Slew rate | 3.6 V/µs - supports clean amplification of signals up to ~350 kHz at 10 VPP without slew-induced distortion. |
| Input offset voltage | ≤950 µV max (TLC2272A spec) - ensures ≤0.02% error in 5 V full-scale measurement systems. |
| Input bias current | 1 pA typical - minimizes voltage error across high-impedance sources like piezoelectric transducers or pH electrodes. |
| Supply current per channel | 2.4 mA at ±5 V - allows dual-channel operation within 5 mA total, suitable for low-power portable instrumentation. |
| Input voltage noise | 9 nV/√Hz at 1 kHz - provides superior SNR vs. older CMOS op-amps (e.g., TLC272) in audio and sensor signal chains. |
| Common-mode input range | Includes VDD− rail - permits direct connection of single-ended sensors referenced to ground in single-supply configurations. |
| Output voltage swing | Rail-to-rail - delivers >99% of supply rails at light loads, maximizing dynamic range into ADCs with 0–5 V or ±5 V inputs. |
Pinout & Package
TLC2272ID is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package measuring 3.91 mm × 4.90 mm, with standard 1.27 mm pitch and gull-wing leads compatible with automated assembly.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Channel 1 output | Amplified output node for first op-amp; drives loads up to ±50 mA with rail-to-rail swing. |
| 2 | Channel 1 inverting input | Inverts input signal in standard op-amp configurations; accepts common-mode voltages down to VDD−. |
| 3 | Channel 1 non-inverting input | Non-inverting input node; same common-mode range as Pin 2, enabling true ground-sensing applications. |
| 4 | VDD− / GND | Negative supply or ground reference; must be connected - no internal connection to substrate. |
| 5 | Channel 2 non-inverting input | Independent input for second amplifier; electrically isolated from Channel 1 except via shared supplies. |
| 6 | Channel 2 inverting input | Second amplifier's inverting node; supports same input voltage range and bias current specs as Pins 2 and 3. |
| 7 | Channel 2 output | Second rail-to-rail output; fully specified for drive capability and settling time matching Pin 1. |
| 8 | VDD+ | Positive supply rail; accepts ±2.2 V to ±8 V operation; decoupling capacitor required near this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers output within 10 mV of either supply rail at ±20 µA load - maximizes usable dynamic range into SAR or delta-sigma ADCs. |
| Low input bias current | 1 pA typical - avoids significant voltage drop across >100 MΩ source impedances (e.g., photodiode bias networks). |
| Low input voltage noise | 9 nV/√Hz at 1 kHz - reduces integrated noise floor in 10 Hz–20 kHz bandwidths by >2× versus TLC272. |
| Split- and single-supply support | Fully characterized from ±2.2 V to ±8 V and 4.4 V to 16 V - eliminates need for separate op-amp families across power architectures. |
| High CMRR & PSRR | 75 dB CMRR and 95 dB PSRR - maintains accuracy in noisy industrial environments with shared supply rails or ground bounce. |
| Macromodel included | SPICE model provided by TI - enables accurate AC, transient, and stability simulation before prototyping. |
Applications
| Transducer Interface | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying low-level signals from piezoelectric accelerometers or strain gauges with high source impedance (>10 MΩ). IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner providing gain, filtering, and rail-to-rail output drive into 16-bit ADCs. Use Value: 1-pA input bias current prevents signal attenuation; rail-to-rail swing preserves full ADC input range; low noise maintains SNR >90 dB. | Use Scenario: Signal acquisition in handheld multimeters or portable gas analyzers powered by two AA cells (3 V nominal). IC Role / Device Role / Timing Role: Dual-channel analog front-end supporting simultaneous voltage and current measurement paths. Use Value: 2.4 mA total supply current extends battery life; ±2.2 V min supply enables operation down to 2.2 V per rail (4.4 V total); SOIC-8 footprint simplifies layout. |
| White Goods Control | ADC Driver for Industrial Sensors |
Use Scenario: Monitoring motor current, temperature, and door position in refrigerators and washing machines over –40°C to +85°C. IC Role / Device Role / Timing Role: Robust signal conditioner immune to supply ripple and EMI in appliance mainboards. Use Value: Specified for I-grade (–40°C to +125°C) operation; 75 dB CMRR rejects common-mode noise from triac-driven motors; SOIC package withstands reflow and thermal cycling. | Use Scenario: Driving the input of successive-approximation (SAR) ADCs such as ADS8860 in programmable logic controllers. IC Role / Device Role / Timing Role: Unity-gain buffer with fast settling (<1.5 µs to 0.1%) and low distortion (0.0011% THD+N). Use Value: 3.6 V/µs slew rate and 52° phase margin ensure stable 1-MSPS sampling; rail-to-rail output matches 0–5 V ADC reference without external level shift. |
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 1.2 mA/channel supply current; 0.6 V/µs slew rate; 2.8 V minimum supply; SOIC-8 package. | Better drive capability (60 mA short-circuit current) but lower speed and higher quiescent power. | Select TLV2432IDR when driving heavy capacitive loads or requiring higher output current, not for low-noise or high-speed precision. |
| OPA2333AIDR | Zero-drift architecture; 0.02 µV/°C offset drift; 0.6 µV max offset; 17 µA/ch supply current; SOIC-8. | Superior DC precision and long-term stability, but lower 350 kHz GBW and higher cost. | Select OPA2333AIDR for ultra-low drift requirements (e.g., weigh scales), not for wideband signal conditioning where TLC2272ID's 2.25 MHz GBW is critical. |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2272ID offers optimal balance of speed (2.25 MHz), noise (9 nV/√Hz), and power (2.4 mA), making it ideal for general-purpose precision amplification where zero-drift or high-output-current features are unnecessary.
Availability
TLC2272ID is available at Aetrix Electronics and suitable for white goods control, handheld instrumentation, and industrial transducer interface applications requiring stable component supply across automotive-qualified temperature ranges and long production lifecycles.
Supply support for TLC2272ID 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 as a performance upgrade to the TLC27x series, targeting precision, low-noise, rail-to-rail output applications in sensor signal chains, data acquisition, and portable equipment.
FAQ
What is the maximum supply voltage range supported by the TLC2272ID?
The TLC2272ID supports a total supply voltage range of ±2.2 V to ±8 V (i.e., 4.4 V to 16 V across both rails). Absolute maximum ratings specify ±8 V on VDD+ and VDD−, with differential input voltage limited to ±16 V. Operation beyond ±8 V risks permanent damage and is not characterized.
Does the TLC2272ID support true rail-to-rail input common-mode range?
No - the TLC2272ID supports rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative rail (VDD−), not the positive rail. At ±5 V supply, VICR is specified from –5.3 V to 0 V (for split supply) or 0 V to 3.5 V (for 5 V single supply), meaning the upper limit is typically VDD+ −1.5 V.
Is the TLC2272ID pin-compatible with the TLC2272CP or TLC2272CD?
Yes - TLC2272ID (I-grade, –40°C to +125°C) shares identical SOIC-8 pinout and electrical behavior with TLC2272CP (commercial, 0°C to +70°C) and TLC2272CD (industrial, –40°C to +125°C). All three use the same D-package footprint and pin functions, enabling direct substitution where temperature grade meets system requirements.
What is the typical input offset voltage drift over temperature for the TLC2272ID?
The TLC2272ID has a typical temperature coefficient of input offset voltage (αVIO) of 2 µV/°C. Over its full operating range (–40°C to +125°C), this results in a worst-case drift of approximately 330 µV, assuming linear behavior - consistent with the 1500 µV maximum offset specification for TLC2272A-grade devices across temperature.
Can the TLC2272ID drive a 1000 pF capacitive load stably?
No - the TLC2272ID is characterized for stability with ≤100 pF capacitive load at unity gain (CL = 100 pF, RL = 10 kΩ). Driving 1000 pF directly may cause peaking or oscillation due to reduced phase margin. For larger capacitive loads, add an isolation resistor (e.g., 100 Ω) between output and capacitance, or use a dedicated buffer with higher capacitive drive capability.
TLC2272ID 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:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2272ID FAQ
1.How can I place an order for TLC2272ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272ID 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 TLC2272ID reliable?
The price and inventory of TLC2272ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272ID is usually 5 days.
3.What payment methods are accepted for TLC2272ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272ID?
TLC2272ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272ID 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 TLC2272ID?
For technical support, including TLC2272ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272ID requirements.
6.How does Aetrix verify that TLC2272ID is sourced from the original manufacturer or authorized distributors?
All TLC2272ID 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 TLC2272ID meets industry standards.
7.What is the process for return or replacement of TLC2272ID?
All TLC2272ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272ID, 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 TLC2272ID part is unused and in its original packaging.
Return procedure for TLC2272ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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