OP2177CRMZ-R7 Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The OP2177CRMZ-R7 is an Analog Devices dual precision low-noise operational amplifier with 75 µV max input offset voltage, 118 dB minimum CMRR, and 2 nA max input bias current in an 8-pin MSOP package. It delivers exceptional DC precision for instrumentation and sensor signal conditioning, available worldwide in reel packaging.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OP2177CRMZ-R7 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual precision op-amp with 75 µV max input offset voltage and 126 dB typical CMRR for ultra-accurate differential signal processing
- Ultra-low 2 nA max input bias current with 118 dB minimum common-mode rejection ratio enabling high-impedance sensor interface designs
- 8-pin MSOP (S-PDSO-G8) package offering compact PCB footprint with reel packaging for high-volume automated assembly
Applications
The OP2177CRMZ-R7 is ideal for precision instrumentation amplifiers, strain gauge signal conditioners, and thermocouple interface circuits where ultra-low offset voltage of 75 µV and minimal drift are critical for accurate measurement. Its 118 dB minimum CMRR and 2 nA input bias current make it well suited for high-impedance sensor front-ends in medical diagnostic equipment, industrial data acquisition systems, and precision weighing scales requiring dual-channel amplification in a compact MSOP package.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | RM-8 |
| YTEOL | 8.5 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Average Bias Current-Max (IIB) | 0.002 µA |
| Common-mode Reject Ratio-Min | 118dB |
| Common-mode Reject Ratio-Nom | 126dB |
| Frequency Compensation | NO |
| Input Offset Voltage-Max | 75 µV |
| JESD-30 Code | S-PDSO-G8 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 0.7V/us |
| Supply Current-Max | 0.6mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 1300 |
| Voltage Gain-Min | 1000000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 118 dB minimum CMRR of the OP2177CRMZ-R7 benefit differential sensor measurement circuits?
The OP2177CRMZ-R7's minimum CMRR of 118 dB (typical 126 dB) means that common-mode interference signals such as 50 Hz or 60 Hz power line noise are attenuated by a factor exceeding 630,000 relative to differential signals. In strain gauge bridges, thermocouple amplifiers, and ECG front-ends operating at low signal levels of a few millivolts, this high rejection ensures that ground-referenced noise does not corrupt the measurement, allowing accurate readings without additional filtering stages.
For a precision weigh scale design, how does the OP2177CRMZ-R7's 75 µV offset voltage affect measurement accuracy at low bridge excitation voltages?
With a maximum input offset voltage of 75 µV and an input bias current of only 2 nA, the OP2177CRMZ-R7 introduces minimal DC error when amplifying a Wheatstone bridge output in a weigh scale. At a typical bridge excitation of 5 V and full-scale output of 10 mV, a 75 µV offset represents 0.75% of full-scale error before trimming — and since the dual OP2177 channels are closely matched, a software zero-calibration routine can reduce residual offset to sub-microvolt levels for high-resolution weight measurement.
When is the OP2177CRMZ-R7 a better choice than a JFET-input op-amp for high-impedance sensor interfaces?
The OP2177CRMZ-R7's 2 nA maximum input bias current is lower than many JFET-input op-amps available in 8-pin MSOP packages, while its 75 µV maximum offset voltage is significantly better than the typical 1 mV to 5 mV offset of JFET devices. For pH electrode interfaces, photodiode transimpedance amplifiers, and charge amplifiers where source impedances exceed 10 MΩ, the OP2177CRMZ-R7 provides a superior combination of low bias current and low offset without the noise penalty often associated with JFET-input designs at low frequencies.
How compact is the 8-pin MSOP package of the OP2177CRMZ-R7, and what PCB area does it require compared to an SOIC-8 alternative?
The OP2177CRMZ-R7 uses an 8-pin MSOP (S-PDSO-G8) package measuring approximately 3.0 mm × 3.0 mm body size, which is roughly 50% smaller in PCB area than a standard SOIC-8 package measuring 5.0 mm × 4.0 mm. This compact footprint allows dual-channel precision amplification in medical wearables, handheld instruments, and multi-channel data acquisition boards where board area is limited and both channels of the 75 µV offset, 118 dB CMRR amplifier must fit within tight layout constraints.
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