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Texas Instruments TLC2652C-8D
- Part No.:
- TLC2652C-8D
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2652C-8D.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,956
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Product details
Overview
TLC2652C-8D from Texas Instruments is a chopper-stabilized precision operational amplifier in an 8-pin SOIC package, delivering 1 µV max input offset voltage, 0.003 µV/°C tempco, and 135 dB min open-loop gain. It operates from ±1.9 V to ±8 V supplies, supports rail-to-rail common-mode input down to VDD−, and targets low-level transducer signal conditioning in industrial instrumentation.
For engineers reviewing the TLC2652C-8D datasheet, TLC2652C-8D pinout, TLC2652C-8D application, or TLC2652C-8D equivalent, key selection criteria include ultra-low dc drift, single-supply compatibility with negative-rail input, chopper-noise suppression, and output clamp functionality for fast overload recovery.
Technical Context
The TLC2652C-8D uses Advanced LinCMOS™ process with integrated chopper-stabilization circuitry that continuously nulls input offset voltage against temperature, time, supply, and common-mode variations. Its internal 450 Hz chopping frequency enables sub-microvolt dc precision without external clock control in the D008 package.
It features a dedicated CLAMP pin for active output clamping, dual external capacitor terminals (CXA/CXB) for stabilization, and CMOS input stage with 500 pA max input offset current over −55°C to 125°C - enabling high-impedance sensor interfacing with minimal bias error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 1 µV max at 25°C - ensures <1 µV baseline error in µV-level strain gauge or thermocouple outputs. |
| Offset Tempco | 0.003 µV/°C typ - contributes <0.2 µV drift over 0°C–70°C operating range. |
| Open-Loop Gain | 135 dB min - provides >5 million V/V loop gain for stable closed-loop gain accuracy. |
| CMRR | 120 dB min - rejects >1 million:1 common-mode interference in unbalanced sensor bridges. |
| Supply Range | ±1.9 V to ±8 V - supports low-voltage battery operation and standard ±5 V rails. |
| Chopping Freq | 450 Hz - places chopper sidebands below 1 kHz, avoiding critical audio/industrial bands. |
| Input Bias Current | 500 pA max over full temp range - avoids significant voltage drop across >10 MΩ source impedances. |
Pinout & Package
Package: 8-pin SOIC (D008), surface-mount, 3.9 mm × 4.9 mm body, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | High-impedance CMOS node; accepts signals down to VDD− rail. |
| 2 (IN+) | Non-Inverting Input | High-impedance CMOS node; common-mode range includes VDD−. |
| 3 (CXA) | Chopper Cap A | Connects external capacitor (typically 10 nF) to stabilize chopping loop. |
| 4 (VDD−) | Negative Supply | Reference for all internal circuitry; common-mode input extends to this pin. |
| 5 (CXB) | Chopper Cap B | Second external capacitor terminal; completes chopper stabilization network. |
| 6 (OUT) | Amplifier Output | Capable of ±50 mA surge; supports active clamping via CLAMP pin. |
| 7 (CLAMP) | Output Clamp Control | Sinks up to 25 µA when pulled low to limit output swing and accelerate recovery. |
| 8 (VDD+) | Positive Supply | Accepts up to +8 V; paired with VDD− for split or single-supply operation. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-Stabilized Architecture | Continuous real-time offset nulling eliminates drift-induced calibration loss in long-duration measurements. |
| Rail-to-Rail Common-Mode Input | Operates with inputs at VDD−, enabling true single-supply sensor front-ends without level-shifting circuitry. |
| Dual External Capacitor Interface | On-chip chopper control remains transparent; no clock generation or timing constraints on user design. |
| Integrated Output Clamp | Reduces overload recovery time by actively limiting output excursion - critical for multiplexed sensor systems. |
| MIL-STD-883C ESD Protection | Withstands 2000 V HBM, reducing field failure risk in handling and PCB assembly environments. |
Applications
| Strain Gauge Amplifier | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from load cells in factory-floor weighing systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with ultra-low offset and drift to preserve microstrain resolution. Use Value: 1 µV max VIO and 0.003 µV/°C tempco enable <0.1% full-scale error stability over 0°C–70°C ambient. | Use Scenario: Cold-junction compensation and amplification of Type-K thermocouple outputs in HVAC controllers. IC Role / Device Role / Timing Role: Low-drift, high-input-impedance buffer and gain stage before ADC sampling. Use Value: 500 pA max IIO prevents significant error across thermocouple's ~100 Ω source impedance; rail-to-rail input accommodates cold-junction reference voltage. |
| Medical Sensor Front-End | High-Accuracy Data Acquisition |
Use Scenario: Amplifying bio-potential signals (e.g., ECG leads) where dc stability impacts baseline wander correction. IC Role / Device Role / Timing Role: First-stage dc-coupled amplifier with chopper noise reduction to avoid 1/f noise contamination. Use Value: 450 Hz chopping moves residual noise out of 0.05–150 Hz clinical band; CLAMP pin limits saturation during electrode pop transients. | Use Scenario: Precision analog input channel in automated test equipment requiring <10 ppm linearity over temperature. IC Role / Device Role / Timing Role: Programmable-gain amplifier core with guaranteed 135 dB AVD and 120 dB CMRR for ratiometric measurement integrity. Use Value: 110 dB kSVR ensures supply ripple contributes <0.3 µV error at ±5 V ±10% variation; SOIC package supports reflow-compatible high-density layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2652AC-8D | 0.5 µV max VIO (vs 1 µV), same package and pinout | Required for sub-microvolt offset-critical metrology calibrators | Select when VIO spec must be tighter than 1 µV; otherwise identical functional behavior. |
| LTC2057HS8#PBF | Zero-drift architecture, 0.5 µV max VIO, 0.005 µV/°C tempco, 5 V single-supply only | Optimized for 5 V systems; lacks dual-supply flexibility and CLAMP pin | Choose for 5 V-only designs needing lower tempco; avoid if ± supplies or active clamping required. |
Compared with TLC2652AC-8D and LTC2057HS8#PBF, the TLC2652C-8D offers the best balance of guaranteed 1 µV offset, full ±1.9 V to ±8 V operation, and integrated output clamping - making it optimal for industrial sensor interfaces where supply flexibility and overload robustness are mandatory.
Availability
TLC2652C-8D is available at Aetrix Electronics and suitable for industrial instrumentation, medical sensor front-ends, and high-accuracy data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2652C-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, embedded processing, and connectivity technologies with over 90 years of innovation in precision analog ICs.
The TLC2652 product line was designed specifically for ultra-low-drift, chopper-stabilized amplification in demanding dc-coupled sensor signal chains - targeting applications where traditional op-amps fail due to thermal drift or 1/f noise.
FAQ
What is the maximum operating temperature range for the TLC2652C-8D?
The TLC2652C-8D is characterized for operation from 0°C to 70°C, as indicated by its "C" temperature suffix. This range is validated per TI's SLOS019E datasheet, with all electrical specifications guaranteed within this interval. Operation outside this range may result in parametric degradation not covered by warranty.
Does the TLC2652C-8D require external clocking for chopper operation?
No, the TLC2652C-8D does not require external clocking. Its internal chopper runs at a fixed 450 Hz frequency, fully self-contained within the die. The D008 package omits CLK IN/CLK OUT pins, unlike 14- and 20-pin variants - making it plug-and-play for chopper-stabilized performance without clock routing.
How does the CLAMP pin function in the TLC2652C-8D?
The CLAMP pin on the TLC2652C-8D sinks up to 25 µA when pulled low, actively limiting output voltage excursion during overload. This reduces recovery time after saturation - critical in multiplexed sensor systems. When unused, the pin must be left open or tied to VDD−; it is not internally terminated.
Can the TLC2652C-8D operate from a single 5-V supply?
Yes, the TLC2652C-8D supports true single-supply operation: its common-mode input range includes the negative rail (VDD−), allowing IN+ and IN− to be referenced to ground when VDD− = 0 V and VDD+ = 5 V. Output swing reaches within 0.3 V of each rail under 10 kΩ load, per datasheet VOM± specs.
What external components are mandatory for stable operation of the TLC2652C-8D?
Two external capacitors - one connected between CXA and VDD−, another between CXB and VDD− - are mandatory. Typical values are 10 nF ceramic (X7R), placed close to the device. These stabilize the internal chopper loop; omitting them causes oscillation or degraded dc precision. No other passive components are required for basic operation.
TLC2652C-8D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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:
- 0.6 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2652C-8D FAQ
1.How can I place an order for TLC2652C-8D through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2652C-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 TLC2652C-8D reliable?
The price and inventory of TLC2652C-8D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2652C-8D is usually 5 days.
3.What payment methods are accepted for TLC2652C-8D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2652C-8D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2652C-8D?
TLC2652C-8D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2652C-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 TLC2652C-8D?
For technical support, including TLC2652C-8D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2652C-8D requirements.
6.How does Aetrix verify that TLC2652C-8D is sourced from the original manufacturer or authorized distributors?
All TLC2652C-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 TLC2652C-8D meets industry standards.
7.What is the process for return or replacement of TLC2652C-8D?
All TLC2652C-8D units undergo pre-shipment inspection (PSI). If there is an issue with TLC2652C-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 TLC2652C-8D part is unused and in its original packaging.
Return procedure for TLC2652C-8D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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