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Texas Instruments TLC2654AIP
- Part No.:
- TLC2654AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC2654AIP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,190
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Product details
Overview
TLC2654AIP from Texas Instruments is a chopper-stabilized operational amplifier optimized for ultra-low-noise, high-precision DC signal conditioning. It delivers 10 µV max input offset voltage, 0.05 µV/°C tempco, 135 dB min open-loop gain (AVD), and 13 nV/√Hz input noise at 1 kHz - enabling thermocouple amplification, strain gauge interfaces, and precision sensor front-ends in industrial and automotive systems.
For engineers reviewing the TLC2654AIP datasheet, TLC2654AIP pinout, TLC2654AIP application, or TLC2654AIP equivalent, this page provides verified specifications, package mapping to 8-pin plastic DIP (P), functional pin roles, real-world use cases in low-frequency analog measurement, and validated alternative options with documented technical differences.
Technical Context
The TLC2654AIP uses Advanced LinCMOS™ process technology combined with internal chopper-stabilization circuitry operating at 10 kHz typical frequency. This architecture continuously nulls input offset voltage across temperature, time, and supply variations while eliminating intermodulation error below 5 kHz.
Its rail-to-rail common-mode input range (includes VDD–) supports single-supply operation down to ±2.3 V, and the integrated output clamp pin enables fast overload recovery. The device requires two external capacitors (CXA, CXB) but hides clock control complexity from the user in standard configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (Max) | 10 µV at 25°C - ensures sub-mV error in mV-level sensor outputs without trimming |
| Offset Tempco (Max) | 0.05 µV/°C - maintains <0.5 µV drift over 10°C ambient change in precision instrumentation |
| Open-Loop Gain (Min) | 135 dB - supports ≥10⁶ closed-loop gain stability for microvolt-resolution amplification |
| Input Noise Density | 13 nV/√Hz at 1 kHz - preserves SNR in bandwidth-limited low-frequency measurement paths |
| Chopping Frequency | 10 kHz typical - places clock artifacts beyond audio band and avoids aliasing in ≤5 kHz signal chains |
| Supply Voltage Range | ±2.3 V to ±8 V - enables operation from low-voltage battery rails up to industrial ±5 V supplies |
| Common-Mode Input Range | Includes VDD– - allows direct interface to grounded sensors and single-supply transducer bridges |
Pinout & Package
Package: 8-pin Plastic DIP (P), through-hole mounting, JEDEC MS-001 compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CXA) | Chopper capacitor A terminal | Connects to external timing capacitor; sets chopping frequency and stabilizes nulling loop |
| 2 (IN–) | Inverting input | High-impedance CMOS node; accepts differential signals referenced to VDD– or mid-supply |
| 3 (IN+) | Non-inverting input | High-impedance CMOS node; supports rail-to-rail common-mode range including VDD– |
| 4 (VDD–) | Negative supply rail | Reference for all internal biasing; common-mode input extends to this pin |
| 5 (CXB) | Chopper capacitor B terminal | Completes chopper capacitor pair; must match CXA value for stable operation |
| 6 (VDD+) | Positive supply rail | Power for internal amplifiers and chopper logic; supports ±2.3 V to ±8 V operation |
| 7 (OUT) | Amplifier output | Capable of ±4.7 V swing into 10 kΩ; includes internal clamp diode path to CLAMP pin |
| 8 (CLAMP) | Output clamp control | External connection point for fast-recovery clamp circuit; reduces saturation recovery time |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-stabilized architecture | Eliminates 1/f noise and drift; achieves 0.5 µVPP (0–1 Hz) and 10 µV max VIO over full temp range |
| Rail-to-rail common-mode input | Accepts inputs at VDD–, enabling true single-supply operation with grounded-sensor configurations |
| Integrated output clamp | Reduces overload recovery time vs. standard op-amps; supports fast settling after overvoltage events |
| Low input bias current | 60 pA max at 25°C - minimizes voltage error across high-impedance sources like piezoresistive sensors |
| High PSRR & CMRR | 110 dB min supply and common-mode rejection - rejects power rail noise and ground bounce in noisy environments |
Applications
| Thermocouple Amplifier | Strain Gauge Signal Chain |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from Type K thermocouples in industrial furnace controllers. IC Role / Device Role / Timing Role: Primary DC-coupled gain stage with chopper stabilization to suppress thermal EMF drift and 1/f noise. Use Value: Enables <±1°C accuracy over –40°C to +85°C without manual calibration or external auto-zero circuitry. |
Use Scenario: Conditioning bridge outputs from metal foil strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with matched input impedance and ultra-low offset drift. Use Value: Maintains <0.01% FS linearity over temperature by limiting offset shift to ≤0.5 µV across 40°C ambient swing. |
| Low-Frequency Biosensor Interface | Automotive Battery Monitoring |
Use Scenario: Front-end for ECG/EEG electrodes where sub-µV signal integrity and DC stability are critical. IC Role / Device Role / Timing Role: First-stage amplifier with rail-to-rail input to accommodate electrode half-cell potentials near ground. Use Value: Delivers 110 dB CMRR and 135 dB AVD to reject motion artifact and power-line interference in unshielded environments. |
Use Scenario: Precision voltage sensing of 12 V lead-acid battery terminals in automotive body control modules. IC Role / Device Role / Timing Role: High-accuracy differential monitor with extended temperature rating (–40°C to +85°C). Use Value: Meets AEC-Q100 Grade 2 requirements via I-suffix qualification; supports ±2.3 V minimum supply during cold-crank conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar chopper-stabilized op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2652AIP | 450 Hz chopping frequency vs. 10 kHz; higher 1/f noise corner; 5 µV max VIO | Better for ultra-low-frequency (<10 Hz) applications where clock feedthrough must be minimized | Select when sub-Hz noise performance outweighs bandwidth needs; not suitable for >5 kHz signal paths due to aliasing risk |
| LTC2057HMS8#PBF | Zero-drift architecture (auto-zero + chopper); 0.25 µV max VIO; 1.9 MHz GBW vs. 1.9 MHz | Higher speed and lower offset, but requires external compensation and lacks integrated clamp pin | Choose for higher-precision, higher-bandwidth designs where board space allows external components and layout controls clock coupling |
Compared with TLC2652AIP and LTC2057HMS8#PBF, the TLC2654AIP offers superior high-frequency noise immunity (10 kHz chop), built-in clamp functionality for robust overload handling, and simpler external component count - making it optimal for cost-sensitive, high-reliability industrial sensor interfaces where 1–10 kHz bandwidth suffices.
Availability
TLC2654AIP is available at Aetrix Electronics and suitable for thermocouple amplification, strain gauge conditioning, and automotive battery monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2654AIP 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-amp design and manufacturing.
The TLC2654AIP belongs to TI's Advanced LinCMOS™ chopper-stabilized op-amp family, engineered specifically for high-accuracy, low-drift DC signal conditioning in harsh industrial and automotive environments.
FAQ
What is the maximum operating temperature range for the TLC2654AIP?
The TLC2654AIP is rated for operation from –40°C to +85°C (I-suffix grade). Its electrical characteristics, including 10 µV max input offset voltage and 0.05 µV/°C tempco, are guaranteed across this full industrial temperature range per the official datasheet SLOS020G.
Does the TLC2654AIP require external clocking components?
No - the TLC2654AIP integrates its 10 kHz chopper clock and requires only two external capacitors (CXA and CXB) for internal stabilization. Unlike the 14-pin or 20-pin variants, the 8-pin P-package version does not expose CLK IN/OUT pins, making it fully self-contained for basic chopper operation.
Can the TLC2654AIP operate from a single supply?
Yes - the TLC2654AIP supports true single-supply operation because its common-mode input voltage range includes the negative rail (VDD–). With VDD– grounded and VDD+ = +5 V, inputs can swing from 0 V to +2.7 V, enabling direct interfacing with grounded sensors and resistive bridges.
What is the purpose of the CLAMP pin on the TLC2654AIP?
The CLAMP pin on the TLC2654AIP provides an external connection point for a fast-recovery clamp circuit that reduces output saturation recovery time. When the output is driven beyond its linear range, this pin enables rapid discharge of internal nodes - critical in precision integrators or comparator-based protection circuits.
How does the TLC2654AIP compare to standard precision op-amps in low-frequency noise performance?
The TLC2654AIP achieves 0.5 µVPP (0–1 Hz) and 1.5 µVPP (0–10 Hz) input noise - up to 10× lower than non-chopper precision op-amps like OP07. This is enabled by its 10 kHz chopper frequency, which moves switching artifacts out of the audio/subsonic band while suppressing 1/f noise and thermal drift.
TLC2654AIP 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 3.7V/µs
- Gain Bandwidth Product:
- 1.9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 4 µV
- Current - Supply:
- 1.5mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.6 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC2654AIP FAQ
1.How can I place an order for TLC2654AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2654AIP 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 TLC2654AIP reliable?
The price and inventory of TLC2654AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2654AIP is usually 5 days.
3.What payment methods are accepted for TLC2654AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2654AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2654AIP?
TLC2654AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2654AIP 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 TLC2654AIP?
For technical support, including TLC2654AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2654AIP requirements.
6.How does Aetrix verify that TLC2654AIP is sourced from the original manufacturer or authorized distributors?
All TLC2654AIP 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 TLC2654AIP meets industry standards.
7.What is the process for return or replacement of TLC2654AIP?
All TLC2654AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLC2654AIP, 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 TLC2654AIP part is unused and in its original packaging.
Return procedure for TLC2654AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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