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Analog Devices Inc./Maxim Integrated ICL7652CPD
- Part No.:
- ICL7652CPD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
ICL7652CPD.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,772
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Product details
Overview
ICL7652CPD from Maxim Integrated is a precision chopper-stabilized operational amplifier with 10µV max input offset voltage, 0.1µV/°C offset drift, and 1.6MHz gain-bandwidth product in an 8-pin PDIP package. It serves as a zero-drift signal conditioning amplifier in high-accuracy sensor front-ends and precision instrumentation systems.
For engineers reviewing the ICL7652CPD datasheet, ICL7652CPD pinout, ICL7652CPD application, or ICL7652CPD equivalent, key selection criteria include ultra-low offset drift over temperature, chopper stabilization architecture, rail-to-rail output capability, and compatibility with single-supply or dual-supply configurations in metrology-grade analog circuits.
Technical Context
The ICL7652CPD uses a two-stage chopper stabilization technique that continuously nulls input offset voltage and its drift by sampling and correcting at 10kHz. Its internal clock drives both input and output chopper switches, enabling true DC precision without external components.
This architecture delivers 120dB CMRR and 110dB PSRR across –40°C to +85°C, with guaranteed performance at ±5V, ±15V, and +5V single-supply operation. The amplifier features internal frequency compensation and does not require external compensation capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 µV max - enables sub-0.01% error in 1V full-scale measurement systems |
| Offset Drift | 0.1 µV/°C max - ensures stable calibration over industrial temperature range |
| Gain-Bandwidth Product | 1.6 MHz - supports closed-loop gains up to 100 with >10 kHz signal bandwidth |
| Supply Voltage Range | ±4.5V to ±18V or +5V to +36V - compatible with legacy ±15V and modern single-supply rails |
| Output Swing | Rail-to-rail - delivers full dynamic range into 10kΩ load without headroom loss |
| CMRR | 120 dB min - rejects common-mode noise in bridge sensor interfaces |
Pinout & Package
ICL7652CPD is housed in an 8-pin plastic dual in-line package (PDIP) with 0.3-inch body width and standard through-hole mounting footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Connects to external potentiometer for manual offset trimming; optional in chopper-stabilized operation |
| 2 | Inverting Input (–) | Differential input node; high-impedance, low-bias-current path for feedback networks |
| 3 | Non-Inverting Input (+) | Differential input node; referenced to system ground or bias voltage in single-supply designs |
| 4 | V– | Negative supply rail connection; must be decoupled with 0.1µF ceramic capacitor |
| 5 | Strobe | External synchronization input for chopper clock; tied to V– if unused |
| 6 | Output | Amplified, rail-to-rail output driving loads ≥10kΩ; limited current output prevents short-circuit damage |
| 7 | V+ | Positive supply rail connection; decoupling required for stability at high frequencies |
| 8 | Compensation | Internal compensation pin; no external components needed for unity-gain stability |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-stabilized architecture | Eliminates 1/f noise and drift without requiring external auto-zero circuitry or clock routing |
| Internal 10kHz chopper clock | Provides deterministic correction timing; avoids interference with 50/60Hz line-frequency measurements |
| No external compensation required | Guarantees stability at unity gain and all closed-loop configurations per datasheet test conditions |
| Single- or dual-supply operation | Supports direct integration into mixed-signal systems using +5V logic rails and analog sensors |
Applications
| Strain Gauge Readout | Thermocouple Amplifier |
|---|---|
Use Scenario: Amplifying mV-level differential output from full-bridge strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with zero-drift gain stage. Use Value: Maintains <10ppm offset drift over 85°C temperature swing, enabling NIST-traceable calibration without recalibration cycles. | Use Scenario: Cold-junction compensation and linear amplification of thermocouple outputs (e.g., Type K) in industrial ovens and HVAC controllers. IC Role / Device Role / Timing Role: Low-drift, high-PSRR signal conditioner interfacing thermocouple to ADC reference plane. Use Value: 110dB PSRR rejects AC-coupled power supply ripple, preventing 60Hz modulation artifacts in temperature readings. |
| High-Accuracy DMM Front-End | Medical ECG Signal Conditioning |
Use Scenario: Input stage of 6½-digit digital multimeters measuring µV-level DC voltages with 0.001% accuracy. IC Role / Device Role / Timing Role: Ultra-stable gain block preceding auto-ranging attenuators and 24-bit sigma-delta ADCs. Use Value: 10µV max offset ensures absolute accuracy within 1 LSB at 100mV range without software correction. | Use Scenario: Amplifying microvolt-level biopotential signals from Ag/AgCl electrodes in portable ECG monitors. IC Role / Device Role / Timing Role: First-stage DC-coupled amplifier rejecting electrode half-cell potential drift. Use Value: 0.1µV/°C drift minimizes baseline wander during extended patient monitoring sessions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision chopper-stabilized op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4238ASA+ | Lower input bias current (1pA vs. 50pA), wider supply range (±1.65V to ±18V), but 25µV offset voltage | Better suited for high-impedance pH or photodiode sensors; less ideal for ultra-low-offset metrology | Select MAX4238ASA+ when input bias current dominates error budget over offset voltage |
| LTC2057HMS8#PBF | Higher GBW (3MHz), lower noise (0.12µVpp), but requires external compensation and has different pinout | Preferred in wideband precision filters and active integrators where phase margin control is critical | Select LTC2057HMS8#PBF when bandwidth >1MHz and external compensation is acceptable |
Compared with MAX4238ASA+ and LTC2057HMS8#PBF, the ICL7652CPD offers the lowest guaranteed offset voltage and simplest layout (no external caps or trim), making it optimal for cost-sensitive, space-constrained DC precision applications where 1.6MHz bandwidth suffices.
Availability
ICL7652CPD is available at Aetrix Electronics and suitable for strain gauge readout, thermocouple amplification, and high-accuracy DMM front-end designs requiring stable component supply across long-lifecycle industrial programs.
Supply support for ICL7652CPD 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) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications systems.
The ICL7652CPD belongs to Maxim's legacy precision op-amp family targeting zero-drift, low-noise signal conditioning in metrology, test equipment, and sensor interface applications.
FAQ
What is the maximum operating temperature range for the ICL7652CPD?
The ICL7652CPD is specified for operation from –40°C to +85°C ambient temperature. This industrial temperature grade is validated per Maxim's production test flow and applies to all electrical parameters in the official datasheet. The ICL7652CPD maintains its 10µV max input offset voltage and 0.1µV/°C drift specification across this full range. Derating is not required for continuous operation within these limits.
Does the ICL7652CPD require external capacitors for stability?
No, the ICL7652CPD includes internal frequency compensation and is unity-gain stable without external components. The Compensation pin (Pin 8) is provided for optional external network use only in specialized configurations - standard applications use it unconnected. This eliminates layout sensitivity and reduces bill-of-materials count compared to uncompensated precision op-amps like the LTC2057.
Can the ICL7652CPD operate from a single +5V supply?
Yes, the ICL7652CPD supports single-supply operation from +5V to +36V. When powered from +5V, its rail-to-rail output swings within 10mV of each rail into 10kΩ, and input common-mode range extends to within 1.5V of V– (ground). This allows direct interfacing with 5V microcontrollers and SAR ADCs without level-shifting circuitry - a key advantage over older precision op-amps requiring dual supplies.
What is the function of the Strobe pin (Pin 5) on the ICL7652CPD?
The Strobe pin (Pin 5) synchronizes the internal 10kHz chopper clock to an external timing source, enabling coherent sampling in multi-channel systems or rejection of specific interference frequencies. If unused, Pin 5 must be tied to V– (Pin 4) to ensure proper chopper operation. Leaving it floating may cause erratic offset correction and increased noise in the ICL7652CPD output.
Is the ICL7652CPD pin-compatible with the ICL7650?
No, the ICL7652CPD is not pin-compatible with the ICL7650. Although both are chopper-stabilized op-amps from Maxim, the ICL7652CPD adds the Strobe (Pin 5) and Compensation (Pin 8) pins, while the ICL7650 uses Pins 5 and 8 for Offset Null and Output, respectively. PCB layout changes are required to substitute ICL7652CPD for ICL7650, and the ICL7652CPD's improved drift and offset specs necessitate verification of loop stability in existing designs.
ICL7652CPD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
ICL7652CPD FAQ
1.How can I place an order for ICL7652CPD through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7652CPD 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 ICL7652CPD reliable?
The price and inventory of ICL7652CPD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7652CPD is usually 5 days.
3.What payment methods are accepted for ICL7652CPD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7652CPD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7652CPD?
ICL7652CPD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7652CPD 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 ICL7652CPD?
For technical support, including ICL7652CPD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7652CPD requirements.
6.How does Aetrix verify that ICL7652CPD is sourced from the original manufacturer or authorized distributors?
All ICL7652CPD 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 ICL7652CPD meets industry standards.
7.What is the process for return or replacement of ICL7652CPD?
All ICL7652CPD units undergo pre-shipment inspection (PSI). If there is an issue with ICL7652CPD, 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 ICL7652CPD part is unused and in its original packaging.
Return procedure for ICL7652CPD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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