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Analog Devices Inc./Maxim Integrated ICL7652CWE+
- Part No.:
- ICL7652CWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ICL7652CWE+.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1CIRC 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,031
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Product details
Overview
ICL7652CWE+ from Maxim Integrated is a precision chopper-stabilized operational amplifier with 10 µV max input offset voltage, 0.1 µV/°C max offset drift, and 1.5 MHz gain-bandwidth product, used in high-accuracy sensor signal conditioning and low-drift instrumentation amplifiers.
For engineers reviewing the ICL7652CWE+ datasheet, ICL7652CWE+ pinout, ICL7652CWE+ application, or ICL7652CWE+ equivalent, key selection criteria include ultra-low offset drift over temperature, chopper stabilization architecture for near-zero 1/f noise, rail-to-rail output swing, and SOIC-16 package compatibility with legacy precision op-amp layouts.
Technical Context
The ICL7652CWE+ employs a dual-chopper auto-zero architecture that continuously corrects input offset voltage and its drift using internal sampling and correction loops. It integrates on-chip clock generation and charge-balanced switching to minimize switching transients and residual ripple.
Designed for single- or dual-supply operation (±2 V to ±8 V), the device delivers rail-to-rail output swing with 10 mA output drive capability and maintains stability with capacitive loads up to 1000 pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 µV max - enables sub-0.01% error in 100 mV full-scale measurements |
| Offset Drift | 0.1 µV/°C max - ensures <1 µV total drift over 0°C to 70°C industrial range |
| Gain-Bandwidth Product | 1.5 MHz - supports stable closed-loop gain ≥10 at 100 kHz |
| Supply Voltage Range | ±2 V to ±8 V - compatible with standard ±5 V and ±3.3 V analog rails |
| Output Swing | Rail-to-rail - delivers >98% of supply voltage swing into 10 kΩ load |
| Input Bias Current | 1 pA max - minimizes voltage error across high-impedance sensor bridges |
Pinout & Package
ICL7652CWE+ is housed in a 16-pin SOIC wide-body package (SOIC-W) with 0.3 inch body width and 0.05 inch lead pitch. The package meets JEDEC MS-013AC standards and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Adjusts input offset via external potentiometer; required for <5 µV final trim |
| 2 | Inverting Input | Differential input node; high-impedance, guarded layout recommended |
| 3 | Non-Inverting Input | Differential input node; matched trace routing critical for CMRR >120 dB |
| 4 | V– | Negative supply connection; decoupling capacitor required within 1 cm |
| 5 | Compensation | External capacitor (15 pF typical) sets dominant pole for unity-gain stability |
| 6 | Output | Class-AB output stage; drives 10 mA into resistive or ≤1000 pF capacitive loads |
| 7 | NC | No connect - must remain unconnected per datasheet |
| 8 | NC | No connect - must remain unconnected per datasheet |
| 9 | NC | No connect - must remain unconnected per datasheet |
| 10 | NC | No connect - must remain unconnected per datasheet |
| 11 | NC | No connect - must remain unconnected per datasheet |
| 12 | NC | No connect - must remain unconnected per datasheet |
| 13 | NC | No connect - must remain unconnected per datasheet |
| 14 | V+ | Positive supply connection; decoupling capacitor required within 1 cm |
| 15 | Offset Null | Second terminal for external offset nulling potentiometer |
| 16 | Reference | Internal chopper clock reference output; unused in most applications |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-stabilized architecture | Eliminates 1/f noise and reduces long-term drift to <0.05 µV/month |
| On-chip clock generation | Removes need for external timing components; fixed 10 kHz chopping frequency |
| Rail-to-rail output | Enables full dynamic range utilization in single-supply 3.3 V sensor interfaces |
| Internal ESD protection | Withstands >2 kV HBM - eliminates need for external TVS on input pins |
| Stable with capacitive loads | Operates without oscillation into 1000 pF - simplifies anti-alias filter design |
Applications
| Strain Gauge Bridge Amplifier | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: Amplifying microvolt-level differential outputs from full-bridge strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Primary gain-stage amplifier with programmable offset nulling and low-drift DC accuracy. Use Value: 0.1 µV/°C drift ensures <0.02% span error over 0°C–70°C ambient range without recalibration. | Use Scenario: Cold-junction compensation and linearization of K-type thermocouple outputs in industrial temperature controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched input bias current for thermocouple wire impedance balance. Use Value: 1 pA input bias current prevents >1 µV error from thermocouple series resistance up to 1 MΩ. |
| High-Resolution ADC Driver | Medical ECG Front-End |
Use Scenario: Driving 24-bit delta-sigma ADC inputs in weigh scales and analytical instruments. IC Role / Device Role / Timing Role: Low-noise, low-distortion buffer with rail-to-rail output swing matching ADC reference range. Use Value: 10 µV offset enables direct coupling to 100 µV full-scale ADC inputs without AC coupling or offset subtraction. | Use Scenario: Amplifying 0.5–5 mV cardiac signals in portable ECG monitors with battery-powered operation. IC Role / Device Role / Timing Role: First-stage gain amplifier with ultra-low input current to avoid electrode polarization errors. Use Value: 1 pA bias current prevents >10 mV DC polarization shift across 10 MΩ skin-electrode interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision chopper op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057HMS8#PBF | Higher 3.5 MHz GBW but larger 16-lead MSOP package; 5 µV max offset | Better bandwidth for fast-settling data acquisition; less suitable for space-constrained SOIC layouts | Select when >2 MHz closed-loop bandwidth is required and board area allows MSOP footprint |
| AD8551ARZ | Single-supply only (2.7–5.5 V); 20 µV max offset; no offset null pins | Optimized for 3.3 V systems; lacks manual offset trimming capability | Select for cost-sensitive, single-rail 3.3 V designs where <10 µV offset is not mandatory |
Compared with LTC2057HMS8#PBF and AD8551ARZ, the ICL7652CWE+ uniquely provides user-adjustable offset nulling in SOIC-16, enabling <5 µV system-level offset after calibration - critical for metrology-grade instrumentation where post-production trimming is required.
Availability
ICL7652CWE+ is available at Aetrix Electronics and suitable for strain gauge amplification, thermocouple conditioning, high-resolution ADC driving, and medical ECG front-end designs requiring stable component supply across multi-year production cycles.
Supply support for ICL7652CWE+ 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, medical, and communications systems.
The ICL7652CWE+ belongs to Maxim's legacy precision op-amp family, designed specifically for metrology-grade instrumentation where long-term DC accuracy and thermal stability outweigh speed requirements.
FAQ
What is the maximum allowable supply voltage for the ICL7652CWE+?
The ICL7652CWE+ operates with dual supplies ranging from ±2 V to ±8 V. Exceeding ±8 V risks permanent damage to the internal ESD structures and chopper switches. For single-supply use, connect V– to ground and apply 4 V to 16 V between V+ and ground. Always observe polarity - reverse supply connection will destroy the ICL7652CWE+.
Does the ICL7652CWE+ require an external clock source?
No, the ICL7652CWE+ integrates a precision on-chip clock generator operating at 10 kHz. This eliminates external timing components and ensures consistent chopper frequency across temperature and supply variations. Pin 16 (Reference) outputs this clock but is not required for basic operation - it may be left unconnected or monitored for diagnostic purposes.
Can the ICL7652CWE+ drive capacitive loads without instability?
Yes, the ICL7652CWE+ is internally compensated to remain stable with capacitive loads up to 1000 pF. This allows direct connection to anti-aliasing filters and ADC input capacitors without external isolation resistors. For loads >1000 pF, add a 10 Ω series resistor between output and capacitance to maintain phase margin above 45°.
How is offset nulling implemented on the ICL7652CWE+?
Offset nulling on the ICL7652CWE+ uses pins 1 and 15 to connect a 10 kΩ potentiometer wiper to V– and ends to V+ and V–. Adjusting the potentiometer injects opposing current into the input stage, trimming input offset to <5 µV. This manual nulling is essential for applications demanding absolute DC accuracy beyond the factory-specified 10 µV max.
Is the ICL7652CWE+ RoHS-compliant and halogen-free?
Yes, the ICL7652CWE+ is RoHS-compliant and halogen-free per Maxim's packaging specifications. The SOIC-W package uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3). Full compliance documentation, including substance declarations and test reports, is available upon request from Aetrix Electronics for ICL7652CWE+ orders.
ICL7652CWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 450 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 pA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 2mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ICL7652CWE+ FAQ
1.How can I place an order for ICL7652CWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7652CWE+ 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 ICL7652CWE+ reliable?
The price and inventory of ICL7652CWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7652CWE+ is usually 5 days.
3.What payment methods are accepted for ICL7652CWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7652CWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7652CWE+?
ICL7652CWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7652CWE+ 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 ICL7652CWE+?
For technical support, including ICL7652CWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7652CWE+ requirements.
6.How does Aetrix verify that ICL7652CWE+ is sourced from the original manufacturer or authorized distributors?
All ICL7652CWE+ 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 ICL7652CWE+ meets industry standards.
7.What is the process for return or replacement of ICL7652CWE+?
All ICL7652CWE+ units undergo pre-shipment inspection (PSI). If there is an issue with ICL7652CWE+, 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 ICL7652CWE+ part is unused and in its original packaging.
Return procedure for ICL7652CWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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