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Texas Instruments TLC2652MJGB
- Part No.:
- TLC2652MJGB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
TLC2652MJGB.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIRC 8CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:255
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Product details
Overview
TLC2652MJGB from Texas Instruments is a military-grade chopper-stabilized operational amplifier designed for ultra-precision DC signal conditioning. It delivers 3 µV max input offset voltage, 0.003 µV/°C temperature coefficient, and 135 dB minimum open-loop gain across −55°C to 125°C. Its rail-to-rail common-mode input range (including negative rail) and single-supply capability make it ideal for strain gauge amplification in aerospace instrumentation.
For engineers reviewing the TLC2652MJGB datasheet, TLC2652MJGB pinout, TLC2652MJGB application, or TLC2652MJGB equivalent, key selection criteria include guaranteed offset performance over full military temperature range, chopper-frequency transparency for external clock control, output clamp functionality for fast overload recovery, and compatibility with ±1.9 V to ±8 V dual supplies or single-supply configurations.
Technical Context
The TLC2652MJGB employs Texas Instruments' Advanced LinCMOS™ process with integrated chopper-stabilization circuitry that continuously nulls input offset voltage against drift from temperature, time, common-mode voltage, and supply variation. Its internal 450 Hz chopping frequency enables sub-microvolt DC precision without external calibration.
It features dedicated CLAMP and C RETURN terminals for external output clamping, INT/EXT and CLK IN/CLK OUT pins enabling user-controlled clocking up to 10 kHz, and CMOS input stage delivering 500 pA max input offset current over −55°C to 125°C. The device withstands ±100 mA surge currents and includes MIL-STD-883C-compliant ESD protection (2000 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 3 µV max over −55°C to 125°C - ensures stable baseline in high-gain transducer interfaces without manual trimming |
| Offset Drift vs Temp | 0.003 µV/°C typ - maintains <100 nV total drift across full military temperature range |
| Open-Loop Gain | 135 dB min - supports >3 million closed-loop gain stability for microvolt-level signal resolution |
| CMRR / PSRR | 120 dB / 110 dB min - rejects interference from noisy power rails and common-mode sensor noise |
| Supply Range | ±1.9 V to ±8 V - operates from low-voltage battery systems up to industrial ±5 V rails |
| Chopping Frequency | 450 Hz internal - eliminates 1/f noise while avoiding audible-band modulation artifacts |
| Output Clamp Current | 25 µA typ - enables fast recovery from saturation using external clamp diodes |
Pinout & Package
Ceramic Dual-In-Line Package (JG), 8-pin, hermetically sealed, rated for −55°C to 125°C operation. Pin 1 = IN−, Pin 2 = IN+, Pin 3 = C RETURN, Pin 4 = VDD−, Pin 5 = CLAMP, Pin 6 = OUT, Pin 7 = VDD+, Pin 8 = CXA. CXB terminal internally connected to chip backside (pin 7 reference). No internal connection on pin 8 except for CXA bonding pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (IN−) | Inverting Input | Differential sensing node with 500 pA max offset current; accepts signals down to negative rail |
| Pin 2 (IN+) | Non-inverting Input | High-impedance CMOS input; common-mode range includes VDD− |
| Pin 3 (C RETURN) | Chopper Reference Return | Return path for internal chopper capacitor network; must connect to analog ground |
| Pin 4 (VDD−) | Negative Supply Rail | Supports single-supply operation when tied to system ground; handles −8 V absolute max |
| Pin 5 (CLAMP) | Output Clamp Control | Sinks 25 µA to enable external diode-based clamping for <1 µs overload recovery |
| Pin 6 (OUT) | Amplifier Output | Capable of ±50 mA short-circuit current; drives 10 kΩ load with ±4.7 V swing at ±5 V supply |
| Pin 7 (VDD+) | Positive Supply Rail | Accepts up to +8 V; powers internal bias and chopper circuitry |
| Pin 8 (CXA) | Chopper Capacitor A | External capacitor connection point (typically 0.1 µF); stabilizes chopper nulling loop |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-Stabilized Architecture | Continuous real-time offset cancellation eliminates need for periodic auto-zero cycles or external trimming |
| Rail-to-Rail Common-Mode Input | Operates with inputs at VDD−, enabling true single-supply sensor front-end designs without level-shifting |
| External Clock Interface | INT/EXT and CLK IN/CLK OUT pins allow synchronization to system clock or reduction of beat frequencies |
| MIL-PRF-38535 Qualified | Screened to Class B requirements including burn-in, temperature cycling, and hermeticity testing |
| ESD Protection | 2000 V HBM per MIL-STD-883C Method 3015.2 - protects against handling damage in cleanroom assembly |
Applications
| Strain Gauge Instrumentation | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: Amplifying µV-level bridge imbalances in aircraft structural health monitoring systems exposed to −55°C to 125°C ambient. IC Role / Device Role / Timing Role: Primary DC-coupled gain stage with chopper stabilization ensuring offset stability over flight thermal cycles. Use Value: 3 µV max VIO and 0.003 µV/°C drift prevent false strain readings during rapid temperature transients. | Use Scenario: Cold-junction compensation and linearization of Type K thermocouples in turbine engine control units. IC Role / Device Role / Timing Role: Precision differential amplifier with rail-to-rail input accepting thermocouple voltages referenced to system ground. Use Value: 120 dB CMRR rejects common-mode noise from high-current actuator switching near sensor wiring. |
| Medical Patient Monitoring | Aerospace ADC Driver |
Use Scenario: Front-end amplification of ECG electrode signals in portable diagnostic devices requiring FDA-grade reliability. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with ultra-low noise and no 1/f contribution below 0.1 Hz. Use Value: 0.8 µV peak-to-peak input noise (0–1 Hz) preserves microvolt-level cardiac waveform fidelity. | Use Scenario: Driving SAR ADC inputs in radiation-hardened satellite telemetry systems where layout space is constrained. IC Role / Device Role / Timing Role: Low-distortion unity-gain buffer with 1.9 MHz GBW and 48° phase margin for stable sampling. Use Value: 2.3 V/µs negative slew rate ensures monotonic settling within ADC aperture time under full-scale step loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189MDRGTEP | Zero-drift architecture with 50 nV/√Hz noise at 1 kHz vs TLC2652MJGB's 23 nV/√Hz; 0.005 µV/°C drift vs 0.003 µV/°C | Optimized for low-noise AC-coupled applications; lacks dedicated CLAMP pin and external clock interface | Select when lower broadband noise dominates design requirements over chopper-frequency control or fast overload recovery |
| AD8628ARMZ-REEL | Auto-zero topology with 0.5 µV max VIO at 25°C but only 10 µV max over −40°C to 125°C; no military temp grade or MIL-PRF screening | Commercial/industrial grade only; not qualified for aerospace or defense platforms requiring traceable lot data | Select for cost-sensitive industrial systems where full military temperature range and screening are unnecessary |
Compared with OPA2189MDRGTEP and AD8628ARMZ-REEL, the TLC2652MJGB uniquely combines MIL-PRF-38535 Class B qualification, user-accessible chopper clocking, and guaranteed 3 µV max offset over −55°C to 125°C - making it irreplaceable in safety-critical avionics signal chains.
Availability
TLC2652MJGB is available at Aetrix Electronics and suitable for aerospace instrumentation, medical diagnostics, and defense electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2652MJGB 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 over 50 years of innovation in precision analog ICs.
The TLC2652 family was engineered specifically for ultra-stable DC amplification in mission-critical systems where offset drift, long-term calibration stability, and rugged environmental operation are non-negotiable.
FAQ
What is the maximum guaranteed input offset voltage for TLC2652MJGB over its full operating temperature range?
The TLC2652MJGB guarantees ≤3 µV maximum input offset voltage across its full military temperature range of −55°C to 125°C, as specified in the Electrical Characteristics table for M-suffix devices. This value is validated per MIL-PRF-38535 screening and reflects worst-case production testing, not typical or room-temperature-only performance.
Does TLC2652MJGB support single-supply operation, and what is the minimum supply voltage?
Yes, the TLC2652MJGB supports true single-supply operation with its common-mode input voltage range extending to the negative rail (VDD−). The minimum total supply voltage is ±1.9 V, meaning it functions with as little as 1.9 V between VDD+ and VDD− - enabling use with 3.3 V or even 2.5 V single-rail systems when VDD− is grounded.
What external components are required for basic operation of TLC2652MJGB?
The TLC2652MJGB requires two external capacitors: a 0.1 µF ceramic capacitor between CXA (pin 8) and C RETURN (pin 3), and a second 0.1 µF capacitor between CXB (internal chip backside) and C RETURN. These stabilize the chopper nulling loop. No additional compensation or feedback components are needed for unity-gain stable operation.
How does the CLAMP pin (pin 5) function in TLC2652MJGB, and what design benefit does it provide?
The CLAMP pin on the TLC2652MJGB sinks 25 µA when the output saturates, allowing connection of external Schottky diodes to limit output swing and reduce recovery time from overload events to under 1 µs. This avoids the multi-millisecond settling delays typical of unclamped chopper amplifiers, critical in closed-loop control systems.
Is TLC2652MJGB pin-compatible with other variants in the TLC2652 family, such as TLC2652AMJG?
Yes, TLC2652MJGB is identical in pinout and package (JG ceramic DIP, 8-pin) to TLC2652AMJG and TLC2652MJG. All share the same pin assignment: IN−, IN+, C RETURN, VDD−, CLAMP, OUT, VDD+, CXA. Differences lie solely in screening level (M-suffix = MIL-PRF-38535 Class B) and guaranteed parameter limits over temperature, not physical layout.
TLC2652MJGB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Chopper (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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CDIP
TLC2652MJGB FAQ
1.How can I place an order for TLC2652MJGB through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2652MJGB 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 TLC2652MJGB reliable?
The price and inventory of TLC2652MJGB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2652MJGB is usually 5 days.
3.What payment methods are accepted for TLC2652MJGB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2652MJGB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2652MJGB?
TLC2652MJGB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2652MJGB 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 TLC2652MJGB?
For technical support, including TLC2652MJGB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2652MJGB requirements.
6.How does Aetrix verify that TLC2652MJGB is sourced from the original manufacturer or authorized distributors?
All TLC2652MJGB 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 TLC2652MJGB meets industry standards.
7.What is the process for return or replacement of TLC2652MJGB?
All TLC2652MJGB units undergo pre-shipment inspection (PSI). If there is an issue with TLC2652MJGB, 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 TLC2652MJGB part is unused and in its original packaging.
Return procedure for TLC2652MJGB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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