My Inquiry
My Account
Texas Instruments TLC2652ACP
- Part No.:
- TLC2652ACP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC2652ACP.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,552
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC2652ACP from Texas Instruments is a chopper-stabilized precision operational amplifier in an 8-pin plastic DIP (P) package, delivering 1 µV max input offset voltage, 0.003 µV/°C tempco, 135 dB min open-loop gain, and rail-to-rail common-mode input range down to VDD−. It enables ultra-low-drift amplification of microvolt-level signals from strain gauges and thermocouples in industrial sensor front-ends.
For engineers reviewing the TLC2652ACP datasheet, TLC2652ACP pinout, TLC2652ACP application, or TLC2652ACP equivalent, key selection criteria include its guaranteed 1 µV VIO at 25°C (C-suffix), chopper frequency of 450 Hz, ±1.9 V to ±8 V dual-supply operation, and integrated output clamp functionality for fast overload recovery.
Technical Context
The TLC2652ACP uses Texas Instruments' Advanced LinCMOS™ process with on-chip chopper-stabilization circuitry that continuously nulls input offset voltage against temperature, time, supply, and common-mode variations. Its architecture includes dedicated CXA/CXB pins for external capacitor connection and CLAMP/CLAMP RETURN terminals enabling user-controlled output clamping.
It features a CMOS input stage with >1012 Ω input impedance, supports single-supply operation with VICR extending to VDD−, and maintains low 100 pA max clamp off-state current and 25 µA clamp on-state current across 0°C to 70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (VIO) | 1 µV max at 25°C - enables direct amplification of sub-10 µV transducer outputs without trimming. |
| Offset Tempco (αVIO) | 0.003 µV/°C typ - ensures <30 nV drift over 10°C ambient change, critical for precision weigh scales. |
| Open-Loop Gain (AVD) | 135 dB min - provides ≥5 million V/V loop gain for stable closed-loop gain accuracy to 0.001%. |
| CMRR / PSRR | 120 dB / 110 dB min - rejects >1 million:1 common-mode or supply noise in bridge sensor interfaces. |
| Supply Range | ±1.9 V to ±8 V - operates from low-voltage battery rails (±2 V) up to industrial ±5 V or ±8 V systems. |
| Chopping Frequency | 450 Hz - places chopper sidebands below 1 kHz, avoiding interference with typical sensor bandwidths. |
| Output Clamp Current | 25 µA on-state - limits output excursion during overload, reducing recovery time to <10 µs in feedback-coupled designs. |
Pinout & Package
Package: 8-pin Plastic DIP (P), 0.3 inch width, through-hole mounting, rated for 0°C to 70°C operation (C-suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | High-impedance CMOS node; accepts differential inputs down to VDD− rail. |
| 2 (IN+) | Non-Inverting Input | High-impedance CMOS node; common-mode range includes VDD− for single-supply biasing. |
| 3 (OUT) | Amplifier Output | Capable of ±50 mA surge; connects to external load or feedback network. |
| 4 (VDD−) | Negative Supply Rail | Reference for internal biasing; common-mode input extends to this pin. |
| 5 (CXA) | Chopper Capacitor A | Connects to external 10 µF capacitor; forms part of auto-zero sampling network. |
| 6 (CXB) | Chopper Capacitor B | Connects to same external 10 µF capacitor as CXA; completes chopper stabilization loop. |
| 7 (CLAMP) | Output Clamp Control | Active-low clamp enable; pulls output toward VDD− when driven low (25 µA sink). |
| 8 (VDD+) | Positive Supply Rail | Supplies internal circuitry; supports up to ±8 V operation with thermal derating. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail common-mode input | Accepts inputs from VDD− to (VDD+ − 1.9 V), enabling true single-supply operation with ground-referenced sensors. |
| Integrated output clamp | Reduces overload recovery time by actively limiting output swing-no external diodes required. |
| Low-frequency noise suppression | Peak-to-peak input noise of only 2.8 µV (0–10 Hz) due to chopper modulation and synchronous demodulation. |
| ESD protection | Withstands 2000 V HBM per MIL-STD-883C Method 3015.2, ensuring robust handling in assembly environments. |
| Stable with external capacitors | No noise degradation when 10 µF capacitors are connected to CXA/CXB-no added filtering needed for stability. |
Applications
| Strain Gauge Amplifier | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from load cells in industrial weighing systems. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with auto-zero correction. Use Value: 1 µV VIO and 0.003 µV/°C tempco eliminate need for manual offset trimming and reduce calibration drift over temperature. | Use Scenario: Cold-junction compensation and linearization of Type K thermocouple outputs in furnace controllers. IC Role / Device Role / Timing Role: Low-drift, high-impedance buffer and gain stage before ADC digitization. Use Value: Rail-to-rail input allows direct interface to thermocouple's negative output; 120 dB CMRR rejects EMI from heating elements. |
| Medical Sensor Front-End | High-Accuracy Data Acquisition |
Use Scenario: Amplifying bio-potential signals (e.g., ECG lead-off detection) where baseline stability is critical. IC Role / Device Role / Timing Role: Ultra-low-drift DC amplifier in analog front-end before programmable gain and filtering. Use Value: 100 pA max clamp off-state current prevents leakage-induced baseline shift during signal acquisition windows. | Use Scenario: Reference-grade signal conditioning in 24-bit sigma-delta data loggers for environmental monitoring. IC Role / Device Role / Timing Role: Primary gain stage preceding precision ADC, requiring minimal system-level offset correction. Use Value: Guaranteed 1 µV VIO max eliminates need for digital post-correction, preserving full dynamic range of high-resolution converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057ACDD#PBF | Zero-drift architecture with 500 nV VIO max, 0.005 µV/°C tempco, 1.2 MHz GBW, DFN-8 package. | Higher bandwidth and smaller footprint; lacks integrated clamp pin and DIP packaging. | Select when PCB space is constrained and clamp function is implemented externally. |
| OPA188AIDR | Zero-drift op-amp with 25 µV VIO max, 0.03 µV/°C tempco, SOIC-8, no clamp pin, 2 MHz GBW. | Looser initial offset spec but higher speed; optimized for general-purpose precision, not ultra-low-VIO niche. | Select for cost-sensitive designs where 25 µV VIO is acceptable and chopper artifacts must be avoided. |
Compared with LTC2057ACDD#PBF and OPA188AIDR, the TLC2652ACP offers the lowest guaranteed VIO (1 µV) and native DIP packaging for prototyping, while retaining integrated clamp functionality-making it uniquely suited for legacy industrial sensor systems requiring field-serviceable through-hole components.
Availability
TLC2652ACP is available at Aetrix Electronics and suitable for industrial weighing systems, furnace temperature controllers, medical sensor front-ends, and high-accuracy data acquisition requiring stable component supply across extended production lifecycles.
Supply support for TLC2652ACP 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 decades of heritage in precision analog design.
The TLC2652ACP belongs to TI's LinCMOS™ chopper-stabilized op-amp family, engineered specifically for ultra-low-offset, low-drift DC amplification in sensor signal chains where long-term stability outweighs bandwidth requirements.
FAQ
What is the maximum operating temperature range for the TLC2652ACP?
The TLC2652ACP is characterized for operation from 0°C to 70°C (C-suffix). Its absolute maximum junction temperature is 150°C, and storage temperature range is −65°C to 150°C. Thermal derating begins above 25°C ambient, with power dissipation reduced by 5.8 mW/°C for the P-package.
Does the TLC2652ACP require external capacitors, and if so, what values?
Yes, the TLC2652ACP requires two external 10 µF capacitors connected between pins CXA and CXB. These capacitors form the chopper-stabilization sampling network. The datasheet confirms no noise degradation occurs with these values, and they are mandatory for proper auto-zero operation.
Can the TLC2652ACP operate from a single supply, and what is the input voltage range in that configuration?
Yes, the TLC2652ACP supports true single-supply operation. With VDD− grounded, its common-mode input voltage range extends from 0 V (the negative rail) to (VDD+ − 1.9 V), allowing direct interfacing with ground-referenced sensors such as thermocouples or resistive bridges without level-shifting circuitry.
What is the purpose of the CLAMP pin on the TLC2652ACP, and how is it used?
The CLAMP pin (Pin 7) provides active output clamping: when pulled low, it sinks 25 µA to pull the OUT pin toward VDD−, limiting positive overdrive. This reduces overload recovery time significantly. It is not internally connected and must be driven externally-typically via a comparator or logic signal during fault conditions.
How does the TLC2652ACP compare to the TLC2652ACN in terms of package and performance?
The TLC2652ACP (8-pin plastic DIP) and TLC2652ACN (14-pin plastic DIP) share identical electrical specifications-including 1 µV VIO max and 0.003 µV/°C tempco-but differ in pin count and layout. The ACN adds INT/EXT, CLK IN, CLK OUT, and C RETURN pins for external clock control, while the ACP omits them. Both are C-suffix, 0°C–70°C grade.
TLC2652ACP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC2652ACP FAQ
1.How can I place an order for TLC2652ACP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2652ACP 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 TLC2652ACP reliable?
The price and inventory of TLC2652ACP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2652ACP is usually 5 days.
3.What payment methods are accepted for TLC2652ACP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2652ACP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2652ACP?
TLC2652ACP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2652ACP 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 TLC2652ACP?
For technical support, including TLC2652ACP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2652ACP requirements.
6.How does Aetrix verify that TLC2652ACP is sourced from the original manufacturer or authorized distributors?
All TLC2652ACP 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 TLC2652ACP meets industry standards.
7.What is the process for return or replacement of TLC2652ACP?
All TLC2652ACP units undergo pre-shipment inspection (PSI). If there is an issue with TLC2652ACP, 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 TLC2652ACP part is unused and in its original packaging.
Return procedure for TLC2652ACP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC2652ACP Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
