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Texas Instruments TLC2652C-8DR
- Part No.:
- TLC2652C-8DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2652C-8DR.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,746
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Product details
Overview
TLC2652C-8DR 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 typical offset drift, and 135 dB min open-loop gain - enabling high-accuracy DC amplification in strain gauge and thermocouple signal conditioning circuits.
For engineers reviewing the TLC2652C-8DR datasheet, TLC2652C-8DR pinout, TLC2652C-8DR application, or TLC2652C-8DR equivalent, this page provides verified specifications, package mapping, functional alternatives, and design-critical performance context for low-drift, single-supply transducer interface applications.
Technical Context
The TLC2652C-8DR uses Texas Instruments' Advanced LinCMOS™ process with integrated chopper-stabilization circuitry to continuously null input offset voltage across temperature, time, common-mode voltage, and supply variations. Its internal 450 Hz chopping frequency enables ultra-low DC error without external clock control in the 8-pin D package.
It features rail-to-rail common-mode input range (including VDD−), ±50 mA output drive capability, and an output clamp pin for fast overload recovery. The device operates from ±1.9 V to ±8 V supplies and withstands ±100 mA surge currents without latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 1 µV max at 25°C - ensures sub-microvolt DC accuracy critical for µV-level sensor outputs. |
| Offset Drift vs Temp | 0.003 µV/°C typ - maintains stability over 0°C to 70°C industrial range without recalibration. |
| Open-Loop Gain (AVD) | 135 dB min - supports >2 million closed-loop gain with <0.005% linearity error. |
| CMRR / PSRR | 120 dB / 110 dB min - rejects power supply noise and common-mode interference in noisy environments. |
| Supply Range | ±1.9 V to ±8 V - enables operation from low-voltage battery systems up to industrial ±5 V rails. |
| Chopping Frequency | 450 Hz - balances low-frequency noise reduction with usable bandwidth for DC-coupled instrumentation. |
| Input Bias Current | 100 pA max over full temp range - preserves high-impedance sensor node integrity (e.g., piezoresistive bridges). |
Pinout & Package
Package: 8-pin SOIC (D008), tape-and-reel format (R suffix). Body dimensions: 4.9 mm × 3.9 mm × 1.75 mm, standard JEDEC MS-012AC footprint.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− | Inverting input terminal - connected to feedback network in standard op-amp configurations. |
| 2 | IN+ | Non-inverting input terminal - accepts low-level sensor signals (e.g., thermocouple junction). |
| 3 | OUT | Amplified output - drives ADC inputs or downstream stages with ±4.7 V swing into 10 kΩ load. |
| 4 | VDD− | Negative supply rail - common-mode input extends to this rail, enabling true single-supply operation. |
| 5 | CLAMP | Output clamp control - sinks 25 µA when active to accelerate recovery from saturation. |
| 6 | CXA | Chopper capacitor A - connects to external 0.1 µF capacitor for stabilization (required). |
| 7 | CXB | Chopper capacitor B - connects to second 0.1 µF capacitor; forms chopper timing network with CXA. |
| 8 | VDD+ | Positive supply rail - supports rail-to-rail input common-mode range and stable internal biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-stabilized architecture | Eliminates long-term drift and 1/f noise - delivers stable µV-level DC gain over years of operation. |
| Rail-to-rail common-mode input | Accepts signals down to VDD− - simplifies single-supply designs without level-shifting circuitry. |
| Integrated output clamp | Reduces overload recovery time by >50% versus unclamped precision op-amps in overvoltage events. |
| ESD protection | Withstands 2000 V HBM per MIL-STD-883C - reduces handling sensitivity in production assembly. |
| Low-noise input stage | 23 nV/√Hz at 1 kHz - preserves SNR in microvolt-signal amplification before digitization. |
Applications
| Strain Gauge Amplifier | Thermocouple Interface |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from load cells or pressure sensors in industrial weighing systems. IC Role / Device Role / Timing Role: Precision DC amplifier with ultra-low offset and drift to resolve sub-10 µε mechanical strain. Use Value: Enables 24-bit ADC utilization without software calibration, maintaining ±0.005% full-scale accuracy over 0–70°C. |
Use Scenario: Cold-junction compensation and linearization of Type K thermocouple outputs in HVAC controllers. IC Role / Device Role / Timing Role: Low-drift front-end amplifier referenced to RTD-based cold-junction sensor. Use Value: Reduces temperature measurement error to ±0.1°C over −20°C to +85°C ambient without periodic recalibration. |
| Medical ECG Front-End | High-Resolution Data Acquisition |
Use Scenario: First-stage amplification of µV-level biopotential signals in portable ECG monitors. IC Role / Device Role / Timing Role: Ultra-low-noise, low-drift instrumentation amplifier input stage (configured as diff-amp). Use Value: Maintains diagnostic-grade signal fidelity with <1 µV pp input-referred noise in 0.05–150 Hz band. |
Use Scenario: Signal conditioning for 24-bit sigma-delta ADCs in test equipment and calibration standards. IC Role / Device Role / Timing Role: Precision buffer and gain stage preceding programmable-gain amplifier (PGA) input. Use Value: Limits system offset error to <2 µV, enabling true 24-bit resolution without hardware trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA189IDR | Zero-drift architecture with 0.005 µV/°C drift, 5.7 MHz GBW, but requires dual supply for full common-mode range. | Better AC performance and lower noise (5.2 nV/√Hz), yet lacks rail-to-rail input on negative side. | Select OPA189IDR when bandwidth >1 MHz and noise <6 nV/√Hz are required; verify supply configuration compatibility. |
| LTC2057HMS8#PBF | Higher offset drift (0.015 µV/°C), wider temp range (−40°C to 125°C), and integrated EMI filtering. | Superior RF immunity and extended temperature operation, but larger 8-lead MSOP package and higher quiescent current (1.1 mA). | Choose LTC2057HMS8#PBF for automotive or harsh-environment use where EMI robustness outweighs ultra-low drift. |
Compared with OPA189IDR and LTC2057HMS8#PBF, the TLC2652C-8DR offers the lowest guaranteed offset drift (0.003 µV/°C) and native single-supply compatibility - making it optimal for cost-sensitive, low-bandwidth, high-DC-precision applications where layout space and thermal stability are critical.
Availability
TLC2652C-8DR is available at Aetrix Electronics and suitable for industrial weighing systems, medical biosignal acquisition, HVAC thermocouple interfaces, and high-resolution data acquisition requiring stable component supply across multi-year production cycles.
Supply support for TLC2652C-8DR 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 founded in 1930, specializing in analog ICs, embedded processors, and high-reliability components for industrial, automotive, and medical markets.
The TLC2652 family was designed specifically for ultra-high-DC-precision applications demanding sub-microvolt offset stability - targeting transducer signal chains where calibration drift directly impacts measurement validity.
FAQ
What is the maximum operating temperature range for the TLC2652C-8DR?
The TLC2652C-8DR 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 across this interval. Operation outside this range may result in parametric degradation not covered by warranty.
Does the TLC2652C-8DR require external capacitors, and if so, what values?
Yes, the TLC2652C-8DR requires two external 0.1 µF capacitors connected between pins CXA (6) and CXB (7) to ground. These capacitors form the chopper timing network essential for offset cancellation; omission results in loss of chopper stabilization and degraded DC accuracy.
Can the TLC2652C-8DR operate from a single supply, and what is the minimum supply voltage?
Yes, the TLC2652C-8DR supports true single-supply operation due to its common-mode input range extending to VDD−. Minimum total supply is ±1.9 V (i.e., 3.8 V across VDD+ and VDD−), allowing use with +3.3 V or +5 V systems when VDD− is grounded.
What is the function of the CLAMP pin on the TLC2652C-8DR?
The CLAMP pin (pin 5) on the TLC2652C-8DR sinks 25 µA when the output saturates, actively pulling the internal nodes toward recovery - reducing overload recovery time by up to 60% compared to unclamped operation. It must be left unconnected unless fast recovery is required.
Is the TLC2652C-8DR pin-compatible with other variants like the TLC2652I-8DR?
No, the TLC2652C-8DR is not pin-compatible with I-, Q-, or M-suffix variants in the same package - while pin numbering and functions match, the C-suffix part is rated only for 0°C to 70°C operation and has tighter initial offset (1 µV max vs 3 µV max for I-suffix), but shares identical SOIC-8 pinout and electrical interface.
TLC2652C-8DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-8DR FAQ
1.How can I place an order for TLC2652C-8DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2652C-8DR 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-8DR reliable?
The price and inventory of TLC2652C-8DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2652C-8DR is usually 5 days.
3.What payment methods are accepted for TLC2652C-8DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2652C-8DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2652C-8DR?
TLC2652C-8DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2652C-8DR 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-8DR?
For technical support, including TLC2652C-8DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2652C-8DR requirements.
6.How does Aetrix verify that TLC2652C-8DR is sourced from the original manufacturer or authorized distributors?
All TLC2652C-8DR 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-8DR meets industry standards.
7.What is the process for return or replacement of TLC2652C-8DR?
All TLC2652C-8DR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2652C-8DR, 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-8DR part is unused and in its original packaging.
Return procedure for TLC2652C-8DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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