LT1636CMS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT1636CMS8#PBF is an Analog Devices Over-The-Top rail-to-rail input and output precision operational amplifier featuring a common-mode rejection ratio of up to 103 dB and maximum input offset voltage of 850 µV. It supports input voltages above the positive supply rail, enabling high-side sensing and single-supply operation from a negative supply without additional circuitry. Available in an 8-pin MSOP package for compact signal conditioning designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT1636CMS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1100(MOQ 19)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Over-The-Top input stage allows common-mode input voltage to exceed the positive supply rail by up to 32 V, enabling true high-side current sensing
- Rail-to-rail input and output operation maximizes signal swing on single 2.7 V to 36 V supply rails for low-voltage precision designs
- 103 dB typical CMRR and 850 µV maximum input offset voltage deliver precision signal integrity in differential measurement applications
- Ultra-low 10 nA typical input bias current minimizes errors in high-impedance sensor interface circuits
Applications
The LT1636CMS8#PBF is designed for high-side current sensing, battery-powered instrumentation, and single-supply data acquisition systems where the input common-mode voltage may exceed the positive supply rail. Its Over-The-Top architecture allows it to monitor currents on a 12 V or 24 V power rail while operating from a 5 V logic supply, making it ideal for industrial motor drives, battery management systems, and solar charge controller designs. It is also used in precision strain gauge amplifiers, pH measurement front-ends, and medical instrumentation where low offset voltage and high CMRR are critical for accurate low-level signal acquisition.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 9 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.01 µA |
| Common-mode Reject Ratio-Min | 86dB |
| Common-mode Reject Ratio-Nom | 103dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 850 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -22 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 0.0375V/us |
| Slew Rate-Nom | 0.075V/us |
| Supply Current-Max | 0.055mA |
| Supply Voltage Limit-Max | 22V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 220 |
| Voltage Gain-Min | 100000 |
| Wideband | YES |
| 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
What does 'Over-The-Top' mean for LT1636CMS8#PBF and in what high-side sensing scenarios is it essential?
The Over-The-Top feature of LT1636CMS8#PBF allows the common-mode input voltage to exceed the positive supply rail by up to 32 V. This enables the amplifier powered from a 5 V supply to accurately sense differential voltages across a shunt resistor on a 12 V, 24 V, or even 36 V power bus, which is essential for high-side current monitoring in battery management systems, motor drives, and hot-swap controllers where the sense resistor sits above the logic supply rail.
What CMRR does LT1636CMS8#PBF achieve and why does this matter for differential sensor measurements?
LT1636CMS8#PBF achieves a typical CMRR of 103 dB with a guaranteed minimum of 86 dB. At 103 dB, a 1 V common-mode noise signal (such as 50 Hz/60 Hz mains coupling) is attenuated to approximately 7 µV at the output — below the 850 µV offset floor — ensuring that millivolt-level differential signals from strain gauges, thermocouples, or shunt resistors are not masked by common-mode interference in industrial environments.
What supply voltage range and input bias current does LT1636CMS8#PBF support for battery-powered instrumentation?
LT1636CMS8#PBF operates from a single supply of 2.7 V to 36 V or dual supplies of ±1.35 V to ±18 V. The typical input bias current is only 10 nA, making it suitable for high-impedance sensors with source resistances up to 1 MΩ without contributing more than 10 µV of bias-current-induced offset voltage, which is critical for pH electrodes, piezoelectric sensors, and photodiode transimpedance amplifiers in battery-powered handheld instruments.
How does the rail-to-rail output of LT1636CMS8#PBF benefit single 3.3 V supply designs driving an ADC?
With a rail-to-rail output stage, LT1636CMS8#PBF swings to within a few millivolts of both supply rails, achieving an output range of approximately 0 V to 3.27 V on a 3.3 V supply. This maximizes the input range utilization of a 12-bit or 16-bit ADC referenced to 3.3 V, reducing quantization error by ensuring the full-scale output maps to the full-scale ADC input without a voltage headroom loss that would waste 1 to 2 bits of dynamic range.
What package does LT1636CMS8#PBF use and how does it compare to a standard SO-8 for space-constrained PCB layouts?
LT1636CMS8#PBF comes in an 8-pin MSOP (Mini Small Outline Package) measuring approximately 3 mm x 3 mm, which is roughly 60% smaller in footprint than a standard SO-8 package that measures 4.9 mm x 3.9 mm. This size reduction is significant in portable medical devices and wearable sensor nodes where the analog signal conditioning section competes for space with the MCU, power management, and wireless module on the same PCB.
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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.
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