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Texas Instruments TLC2652AI-8D
- Part No.:
- TLC2652AI-8D
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2652AI-8D.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,025
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Product details
Overview
TLC2652AI-8D from Texas Instruments is a chopper-stabilized precision operational amplifier in an 8-pin SOIC (D008) package, delivering 1 µV max input offset voltage, 0.003 µV/°C typical offset drift, and 135 dB min open-loop gain. It operates from ±1.9 V to ±8 V supplies, supports single-supply configurations with rail-to-rail common-mode input down to VDD−, and targets ultra-low-drift signal conditioning in strain gauge and thermocouple front-ends.
For engineers reviewing the TLC2652AI-8D datasheet, TLC2652AI-8D pinout, TLC2652AI-8D application, or TLC2652AI-8D equivalent, this page provides verified pin functions, real-world design meaning of key specs (e.g., 1 µV VIO max enables sub-10 ppm accuracy in 10 V full-scale systems), thermal stability data across −40°C to 85°C, and two validated alternative parts for precision instrumentation upgrades or cost-sensitive replacements.
Technical Context
The TLC2652AI-8D uses Texas Instruments' Advanced LinCMOS™ process with integrated chopper-stabilization circuitry that continuously nulls input offset voltage in real time-compensating for temperature, time, supply, and common-mode variations. Its internal 450 Hz chopping frequency suppresses 1/f noise while maintaining DC precision without external clock control in the 8-pin D008 package.
It features a dedicated CLAMP pin for external output clamping to accelerate overload recovery, and its CMOS input stage delivers 500 pA max input offset current over −40°C to 85°C. The device includes internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2) and survives ±100 mA surge currents at inputs/outputs without latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (VIO) | 1 µV max at 25°C - enables ≤0.01% error in 100 mV full-scale sensor outputs without trimming. |
| Offset Drift (αVIO) | 0.003 µV/°C typ - contributes <0.3 µV total drift over 100°C operating range, critical for unattended industrial monitoring. |
| Open-Loop Gain (AVD) | 135 dB min - ensures ≥2.2 million V/V loop gain for stable closed-loop gain accuracy in high-precision amplifiers. |
| CMRR / PSRR | 120 dB / 110 dB min - rejects >1 million:1 common-mode or supply noise, essential for low-level transducer signals in noisy environments. |
| Supply Range | ±1.9 V to ±8 V - supports low-voltage battery operation (e.g., ±2.5 V) while retaining rail-inclusive input range and full performance. |
| Chopping Frequency | 450 Hz - optimizes 1/f noise reduction without introducing audible artifacts or interfering with typical sensor bandwidths (<100 Hz). |
| Input Offset Current | 500 pA max over −40°C to 85°C - preserves high source impedance integrity (e.g., pH electrodes, piezoresistive sensors) across industrial temperature range. |
Pinout & Package
Package: 8-pin SOIC (D008), surface-mount, tape-and-reel compatible (R suffix available). Dimensions per TI SLOS019E: 4.9 mm × 3.9 mm × 1.75 mm, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | High-impedance CMOS node; accepts signals down to VDD− rail; requires guarding in ultra-low-current applications. |
| 2 (IN+) | Non-inverting input | High-impedance CMOS node; common-mode range includes VDD−; used for reference or sensor low-side connection. |
| 3 (VDD−) | Negative supply | Reference for all internal biasing; common-mode input extends to this rail; must be decoupled locally. |
| 4 (CLAMP) | Output clamp control | Active-low clamp enable; sinking ≥25 µA pulls output toward VDD− to reduce recovery time after overload. |
| 5 (CXB) | Chopper capacitor B | Connects to external 1 µF capacitor (tantalum or ceramic) to stabilize chopper modulation; no user clock access in D008. |
| 6 (CXA) | Chopper capacitor A | Connects to external 1 µF capacitor (tantalum or ceramic); forms chopper stabilization network with CXB. |
| 7 (OUT) | Amplifier output | Capable of ±50 mA short-circuit current; drives 10 kΩ load to ±4.7 V swing with ±5 V supplies. |
| 8 (VDD+) | Positive supply | Power rail for internal circuitry; requires local 0.1 µF ceramic decoupling; supports up to ±8 V absolute max. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-stabilized architecture | Real-time offset nulling eliminates manual calibration and drift-induced errors in long-duration measurements. |
| Rail-inclusive common-mode input | Accepts signals at VDD−, enabling direct interface to grounded-sensor configurations without level-shifting circuitry. |
| Dedicated CLAMP pin | Reduces overload recovery time by actively pulling output to VDD−, critical for fast step-response instrumentation loops. |
| Internal ESD protection | 2000 V HBM rating allows safe handling in standard assembly lines without special ESD protocols. |
| Ultra-low 1/f noise | 0.8 µVPP (0–1 Hz) and 2.8 µVPP (0–10 Hz) enable high-resolution DC measurements in microvolt-range transducers. |
Applications
| Strain Gauge Amplification | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil or semiconductor strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with zero-drift gain stage and rail-to-rail input capability. Use Value: 1 µV VIO max ensures ≤0.005% full-scale error in 20 mV bridge output, eliminating need for periodic recalibration in field-deployed systems. |
Use Scenario: Cold-junction compensation and linear amplification of µV-level thermocouple outputs (e.g., Type K, J) in industrial ovens and HVAC controls. IC Role / Device Role / Timing Role: Low-noise, low-drift DC amplifier with extended common-mode range to accommodate thermocouple ground offsets. Use Value: 0.003 µV/°C drift limits temperature measurement error to <0.03°C over 10°C ambient shift-meeting Class 1 thermocouple accuracy standards. |
| High-Impedance Sensor Interface | Precision Reference Buffer |
Use Scenario: Interfacing pH electrodes, ion-selective sensors, or piezoresistive elements requiring GΩ-level input impedance and minimal input current error. IC Role / Device Role / Timing Role: Unity-gain buffer with 500 pA max IIO over −40°C to 85°C, preserving sensor signal integrity. Use Value: 500 pA max input offset current introduces <0.5 mV error across 1 MΩ source impedance-critical for electrochemical sensing accuracy. |
Use Scenario: Buffering precision voltage references (e.g., REF5025) in ADC front-ends and DAC output stages where loading and drift degrade accuracy. IC Role / Device Role / Timing Role: Low-drift, low-noise unity-gain follower with 135 dB AVD to maintain reference stability under varying load conditions. Use Value: 1 µV VIO and 0.003 µV/°C drift ensure reference output remains within 2 ppm of nominal value across temperature and time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2652I-8D | Same chopper architecture and pinout, but rated for 3 µV max VIO (vs. 1 µV for TLC2652AI-8D) and 150 pA max IIO (vs. 500 pA). | Lower precision grade suitable for cost-sensitive industrial sensors where 3 µV offset is acceptable. | Select when budget constraints outweigh need for sub-1 µV offset; verify system-level error budget permits higher VIO. |
| OPA189IDR | Zero-drift auto-zero architecture (not chopper), 0.005 µV/°C drift, 140 dB CMRR, but requires dual supply and lacks CLAMP pin. | Better drift spec but no output clamping; suited for battery-powered portable instruments with tight drift budgets. | Choose when ultra-low drift dominates over overload recovery speed; confirm layout can accommodate different pinout and no CLAMP functionality. |
Compared with TLC2652I-8D, the TLC2652AI-8D delivers tighter offset and wider IIO specification for demanding transducer interfaces; versus OPA189IDR, it trades slightly higher drift for integrated clamping and proven robustness in high-surge industrial environments.
Availability
TLC2652AI-8D is available at Aetrix Electronics and suitable for precision instrumentation, industrial sensor signal chains, and medical-grade analog front-ends requiring stable component supply across extended temperature ranges.
Supply support for TLC2652AI-8D 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-amps and industrial-grade signal conditioning ICs.
The TLC2652 family was designed specifically for ultra-stable DC amplification in transducer-based measurement systems-prioritizing long-term offset stability, low-frequency noise suppression, and rugged operation in harsh environments.
FAQ
What is the maximum input offset voltage specification for the TLC2652AI-8D?
The TLC2652AI-8D has a maximum input offset voltage of 1 µV at 25°C, tested across the −40°C to 85°C operating range. This specification is guaranteed for the 'AI' grade and distinguishes it from the 'I' grade (3 µV max), making the TLC2652AI-8D suitable for applications demanding highest DC accuracy without trimming.
Does the TLC2652AI-8D require external capacitors, and what values are needed?
Yes, the TLC2652AI-8D requires two external 1 µF capacitors connected between pins 5 (CXB) and 6 (CXA) and ground. These stabilize the internal chopper modulation loop; tantalum or X7R ceramic capacitors are recommended. No external clock components are needed-the 450 Hz chopping frequency is fully internal in the D008 package.
Can the TLC2652AI-8D operate from a single supply, and what is its input common-mode range?
Yes, the TLC2652AI-8D supports true single-supply operation with a common-mode input voltage range extending to the negative rail (VDD−). When powered from +5 V and ground, IN+ and IN− accept signals from 0 V up to +3.1 V-enabling direct interface to grounded sensors without level-shifting circuitry.
What is the purpose of the CLAMP pin on the TLC2652AI-8D, and how is it used?
The CLAMP pin (pin 4) is an active-low output clamp control. When pulled low (≤0.8 V), it sinks ≥25 µA to pull the OUT pin toward VDD−, reducing overload recovery time. It is not internally connected; users must drive it with an external logic signal or resistor network based on system fault detection requirements.
How does the TLC2652AI-8D handle ESD and electrical overstress?
The TLC2652AI-8D incorporates internal ESD protection circuits rated to 2000 V per MIL-STD-883C, Method 3015.2, and withstands ±100 mA surge currents at inputs and output without latch-up. These features allow safe handling in standard manufacturing environments and robust operation in electrically noisy industrial settings.
TLC2652AI-8D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 3.1V/µs
- Gain Bandwidth Product:
- 1.9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 pA
- Voltage - Input Offset:
- 0.5 µV
- Current - Supply:
- 1.5mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 3.8 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2652AI-8D FAQ
1.How can I place an order for TLC2652AI-8D through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2652AI-8D 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 TLC2652AI-8D reliable?
The price and inventory of TLC2652AI-8D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2652AI-8D is usually 5 days.
3.What payment methods are accepted for TLC2652AI-8D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2652AI-8D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2652AI-8D?
TLC2652AI-8D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2652AI-8D 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 TLC2652AI-8D?
For technical support, including TLC2652AI-8D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2652AI-8D requirements.
6.How does Aetrix verify that TLC2652AI-8D is sourced from the original manufacturer or authorized distributors?
All TLC2652AI-8D 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 TLC2652AI-8D meets industry standards.
7.What is the process for return or replacement of TLC2652AI-8D?
All TLC2652AI-8D units undergo pre-shipment inspection (PSI). If there is an issue with TLC2652AI-8D, 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 TLC2652AI-8D part is unused and in its original packaging.
Return procedure for TLC2652AI-8D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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