TC7650CPD Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
TC7650CPD is a chopper-stabilized operational amplifier from Microchip featuring a 2 MHz gain-bandwidth product, 130 dB typical CMRR, and ultra-low 0.01 nA bias current at 25 °C, housed in a 14-pin PDIP package. Its auto-zero architecture virtually eliminates offset voltage drift over temperature, enabling precision DC measurements. Available from Microchip with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- TC7650CPD Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.5802(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Chopper-stabilized (auto-zero) architecture delivers near-zero offset voltage drift over temperature for precision DC signal conditioning
- 130 dB typical CMRR and 120 dB minimum CMRR reject common-mode noise in differential measurement applications
- Ultra-low 0.01 nA bias current at 25 °C minimizes errors when interfacing with high-impedance sensors and electrochemical cells
Applications
TC7650CPD excels in precision instrumentation amplifiers, strain gauge bridges, and thermocouple signal conditioning circuits where offset voltage and drift must be minimised over a wide temperature range. Its chopper-stabilized architecture makes it ideal for DC-coupled weigh scales, medical sensor front-ends, and industrial process control loops requiring long-term measurement stability. The 14-pin PDIP package suits breadboard prototyping and through-hole production boards in laboratory and industrial equipment.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-14 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | CHOPPER-STAB |
| Average Bias Current-Max (IIB) | 0.0004 µA |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 130dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 5 µV |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -9 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Slew Rate-Nom | 2.5V/us |
| Supply Current-Max | 3.5mA |
| Supply Voltage Limit-Max | 9V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 2000 |
| Voltage Gain-Min | 1000000 |
| Wideband | NO |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the chopper-stabilization in TC7650CPD improve long-term DC accuracy compared to a standard op-amp?
The TC7650CPD uses an internal auto-zero chopper circuit that continuously samples and corrects its own offset voltage, achieving sub-microvolt offset drift over temperature. Conventional op-amps can drift 1–10 µV/°C, while TC7650CPD holds offset errors to near zero across its operating range, enabling precision DC amplification with less than 1 µV of accumulated error in applications such as weigh scales or thermocouple amplifiers operating at 25 °C to 85 °C.
What is the input bias current of TC7650CPD and why does it matter for high-impedance sensor interfaces?
TC7650CPD specifies a maximum bias current of 0.0004 µA (400 pA) and a typical value of only 0.01 nA (10 pA) at 25 °C. When driving the input from a 10 MΩ sensor source, this 10 pA bias current produces just 0.1 µV of additional input error, preserving the sub-microvolt accuracy of the chopper-stabilized amplifier in pH electrode, photodiode, and electrochemical sensor circuits.
Which industrial measurement applications benefit most from TC7650CPD's 130 dB CMRR?
A 130 dB CMRR means TC7650CPD attenuates common-mode interference by a factor of more than 3 million, making it highly effective in 4–20 mA current-loop receivers, strain gauge bridges, and RTD transmitters operating in electrically noisy environments near motors or switching power supplies. Even with 1 V of 50 Hz or 60 Hz common-mode noise on the inputs, the resulting differential error remains below 1 µV, preserving measurement integrity.
Is TC7650CPD still in production and what is the typical procurement lead time?
TC7650CPD remains in active production with a YTEOL (years to end-of-life) value of approximately 8 years and a typical factory lead time of 6 weeks. Designers can safely use it in new industrial and instrumentation products without near-term obsolescence risk, and the standard 14-pin PDIP-14 package is widely stocked by global distributors for immediate delivery.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.7300 | $5.73 |
| 2+ | $4.9950 | $9.99 |
| 6+ | $3.7463 | $22.48 |
| 150+ | $3.7200 | $558.00 |
| 300+ | $2.8000 | $840.00 |
| 480+ | $2.5802 | $1238.50 |
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