LTC1992-5IMS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LTC1992-5IMS8#PBF is a low-power, fully-differential input/output amplifier and ADC driver from Analog Devices, featuring a fixed gain of 5 V/V with 60 dB common-mode rejection ratio and 2 µA maximum bias current in an MSOP-8 package. It converts single-ended or differential signals to a balanced differential output, optimized for driving 16-bit and 24-bit SAR and delta-sigma ADCs. Suited for precision data acquisition, medical imaging, and battery-powered instrumentation requiring low noise and low power consumption.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC1992-5IMS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.4600(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC1992-5IMS8#PBF?
- Fully differential input-to-output topology with 60 dB CMRR suppresses common-mode noise in noisy environments
- Fixed gain of 5 V/V simplifies design by eliminating external gain-setting resistors and their associated errors
- 2 µA maximum input bias current preserves signal integrity when driven by high-impedance sensors
- Single or dual supply operation from 2.7 V to 5.5 V enables battery-powered and USB-powered designs
- Compact MSOP-8 package occupies minimal PCB area in space-constrained portable instruments
What is LTC1992-5IMS8#PBF used for?
The LTC1992-5IMS8#PBF serves as a precision ADC driver in data-acquisition front-ends, converting single-ended sensor outputs into a low-noise differential signal suitable for 16-bit or 24-bit delta-sigma ADC inputs. Its low 2 µA input bias current and 60 dB CMRR make it an excellent choice for electrochemical sensor interfaces, medical ECG front-ends, and industrial thermocouple conditioning circuits where ground-referenced noise must be rejected. The low quiescent current and 2.7 V to 5.5 V supply range also suit battery-operated portable analyzers and handheld data loggers.
What are the specifications of LTC1992-5IMS8#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 8.5 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.000002 µA |
| Common-mode Reject Ratio-Min | 55dB |
| Common-mode Reject Ratio-Nom | 60dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 2500 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| 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-Nom | 2V/us |
| Supply Current-Max | 1.5mA |
| Supply Voltage Limit-Max | 12V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 4000 |
| 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 |
Where can I find the LTC1992-5IMS8#PBF datasheet?
LTC1992-5IMS8#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC1992-5IMS8#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What fixed gain does the LTC1992-5IMS8#PBF provide, and how does this simplify ADC driver design?
The LTC1992-5IMS8#PBF provides a factory-trimmed fixed gain of 5 V/V (14 dB), which amplifies a 0.5 V single-ended sensor output to a 2.5 V full-scale differential swing suitable for most 16-bit or 24-bit ADC input ranges. Because the gain is internally set, no external resistors are needed, eliminating resistor mismatch errors that degrade CMRR and gain accuracy in discrete differential amplifier circuits. This simplification reduces component count by approximately 4 resistors and speeds up PCB layout.
How does the 60 dB common-mode rejection ratio of the LTC1992-5IMS8#PBF benefit industrial sensor acquisition systems?
In industrial environments, power-line interference at 50 Hz or 60 Hz and switching-converter noise often appear as common-mode voltages on signal cables. The LTC1992-5IMS8#PBF's 60 dB minimum CMRR attenuates these common-mode signals by a factor of 1000 relative to the differential signal, allowing millivolt-level sensor outputs to be accurately amplified even in the presence of several hundred millivolts of common-mode noise. This performance rivals discrete instrumentation amplifier solutions while consuming less than 1 mA quiescent current at 3.3 V supply.
For a portable ECG monitor running on a 3.3 V lithium-ion cell, how does the LTC1992-5IMS8#PBF fit into the signal chain?
In a portable ECG design, biopotential electrodes produce differential signals in the 1 mV to 5 mV range sitting on top of a 1 V to 2 V common-mode body potential. The LTC1992-5IMS8#PBF amplifies this signal by 5 V/V to 5 mV to 25 mV differential while rejecting the common-mode body voltage at 60 dB, directly driving a 24-bit delta-sigma ADC with a differential 2.5 V full-scale input range. Operating from a 3.3 V rail, the device draws only about 1 mA total supply current, preserving battery life critical for wearable medical devices.
How does the input bias current of 2 µA maximum affect sensor selection when using the LTC1992-5IMS8#PBF?
An input bias current of 2 µA maximum creates a voltage error equal to the source impedance times 2 µA. For a 10 kΩ source—common with pH electrodes or bridge-type sensors—this produces at most 20 mV of offset at the input, equivalent to 100 mV at the output (gain of 5), which must be managed by the ADC's offset correction. For source impedances above 100 kΩ the resulting 200 mV error may exceed the ADC's input range, so the LTC1992-5IMS8#PBF is best paired with buffered or low-impedance sensors or preceded by a unity-gain buffer stage.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $8.8700 | $8.87 |
| 1000+ | $7.4600 | $7460.00 |
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