LT1672CS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT1672CS8#PBF is a precision rail-to-rail input/output operational amplifier by Analog Devices in an 8-pin SOIC package. Key specs: 98 dB minimum CMRR, 1 nA maximum input bias current, 2 µA supply current. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LT1672CS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4900(MOQ 500)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output swing maximizing usable signal range on low-voltage supplies
- 98 dB minimum CMRR (120 dB typical) for exceptional differential signal accuracy
- Ultra-low 1 nA input bias current enabling connection to high-impedance sensors
- 2 µA quiescent supply current ideal for battery-powered precision instruments
- Precision voltage-feedback architecture with minimum gain of 5 for stable closed-loop use
Applications
The LT1672CS8#PBF is designed for precision battery-powered instrumentation, portable medical diagnostics, and sensor signal conditioning where ultra-low bias current and rail-to-rail swing are critical. Its 98 dB CMRR and 1 nA input bias current make it suitable for electrochemical sensor interfaces, pH meters, and photodiode transimpedance amplifiers requiring minimal input loading. Data acquisition systems, precision voltage references, and low-power IoT analog front ends also benefit from its combination of low supply current and high common-mode rejection.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1610 (S8) |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0012 µA |
| Bias Current-Max (IIB) @25C | 0.001 µA |
| Common-mode Reject Ratio-Min | 98dB |
| Common-mode Reject Ratio-Nom | 120dB |
| Frequency Compensation | NO |
| Input Offset Voltage-Max | 625 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 0.016V/us |
| Slew Rate-Nom | 0.005V/us |
| Supply Current-Max | 8.4mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 12 |
| Voltage Gain-Min | 60000 |
| 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 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 1 nA input bias current of LT1672CS8#PBF benefit high-impedance electrochemical sensor interfaces?
At 1 nA maximum input bias current, the LT1672CS8#PBF introduces less than 1 mV of error when driving from a 1 MΩ source impedance, making it suitable for pH electrodes, ion-selective sensors, and photodiodes that present source impedances from 10 MΩ to over 1 GΩ without needing additional buffer stages.
For a 3 V single-supply portable instrument, what rail-to-rail output swing does LT1672CS8#PBF provide?
The rail-to-rail output stage of LT1672CS8#PBF swings to within a few millivolts of both the positive and negative supply rails on a 3 V supply, effectively providing nearly 3 V of output dynamic range. This maximizes ADC utilization and avoids the signal headroom loss typical of conventional op-amps on low-voltage supplies.
What minimum closed-loop gain is specified for LT1672CS8#PBF and why does it matter in circuit design?
The LT1672CS8#PBF specifies a minimum stable closed-loop gain of 5 (14 dB). Designers must configure feedback networks to maintain at least this gain level; operating below Av=5 risks oscillation due to the absence of internal frequency compensation. This constraint must be observed in all inverting and non-inverting amplifier topologies using this device.
How does the 98 dB minimum CMRR of LT1672CS8#PBF compare to standard op-amps in a bridge sensor application?
A 98 dB minimum CMRR means common-mode interference is attenuated by over 63,000 times, far exceeding the 70 dB typical of general-purpose op-amps. In a Wheatstone bridge sensor application with 1 V of common-mode supply noise, the LT1672CS8#PBF limits common-mode error at the output to below 16 µV, compared to 316 µV for a 70 dB device.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $2.8000 | $1400.00 |
| 1000+ | $2.6400 | $2640.00 |
| 10000+ | $2.4900 | $24900.00 |
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