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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Analog Devices Inc. LTC1992-5CMS8#PBF

Name: LTC1992-5CMS8#PBF
Brand: Analog Devices Inc.
SKU: LTC1992-5CMS8#PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LTC1992-5CMS8#PBF

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: LTC1992-5CMS8#PBF.pdf

Description:: IC OPAMP DIFF 1 CIRCUIT 8MSOP

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Product details

Overview

LTC1992-5CMS8#PBF from Analog Devices (formerly Linear Technology) is a fixed-gain, fully differential amplifier with precise 5× differential gain, rail-to-rail input/output operation, and independent VOCM-controlled output common-mode voltage. It operates from 2.7V single supply to ±5V dual supply, delivers ±10mA output current, and maintains ±0.3% max gain error over –40°C to 85°C - ideal for precision single-ended-to-differential conversion in data acquisition front-ends.

For engineers reviewing the LTC1992-5CMS8#PBF datasheet, LTC1992-5CMS8#PBF pinout, LTC1992-5CMS8#PBF application, or LTC1992-5CMS8#PBF equivalent, key selection criteria include guaranteed 5× gain accuracy, C_LOAD-stable operation up to 10,000pF, low 1mA max supply current, adjustable VOCM interface, and MSOP-8 package compatibility with space-constrained signal conditioning designs.

Technical Context

The LTC1992-5CMS8#PBF implements a fully differential architecture with separate internal common-mode feedback to minimize second-order harmonics and ensure balanced +OUT/–OUT phase response. Its fixed 5× gain is set by laser-trimmed on-chip resistors, eliminating external gain-setting components and ensuring ±0.3% max gain error across temperature.

It supports rail-to-rail input common-mode range (–VS to +VS – 1.3V) and delivers rail-to-rail differential output swing while maintaining <2.5mV max input-referred differential offset voltage. The VOCM pin directly sets output common-mode level independently of input common mode, enabling seamless level shifting between mixed-supply domains.

Key Specifications

Parameter	Value and Actual Design Meaning
Fixed Differential Gain	5× (±0.3% max error from –40°C to 85°C)
Supply Range	2.7V single supply to ±5V dual supply - enables low-voltage portable and industrial systems
Output Current	±10mA min - drives heavy capacitive loads and ADC inputs without external buffers
Gain Tempco	3.5ppm/°C - ensures stable gain across thermal cycling in precision instrumentation
C_LOAD Stability	Stable with up to 10,000pF - eliminates need for isolation resistors in high-capacitance PCB routing
Input Offset Voltage	<2.5mV max (input-referred) - preserves DC accuracy in sensor signal chains
Supply Current	1.0mA max - supports battery-powered and energy-efficient designs

Pinout & Package

Package: 8-Lead Plastic MSOP (3mm × 3mm), RoHS-compliant, surface-mount.

Pin/Terminal	Circuit Role	Design Meaning
1 (–IN)	Inverting differential input	Accepts negative half of fully differential input signal; rail-to-rail common-mode range
2 (VOCM)	Output common-mode control	Sets +OUT/–OUT midpoint voltage independently; high-impedance (500MΩ), low-bias (±2pA)
3 (+VS)	Positive supply	Connects to +2.7V to +5V (single) or +5V (dual); absolute max +VS–(–VS) = 12V
4 (+OUT)	Positive differential output	Delivers amplified +IN–(–IN) × 5 + VOCM; rail-to-rail swing, ±10mA drive
5 (+IN)	Non-inverting differential input	Accepts positive half of fully differential input signal; same rail-to-rail CMR as –IN
6 (VMID)	Internal mid-supply reference	Provides 2.44V–2.56V (typ) at 25°C; used for biasing in single-supply configurations
7 (–VS)	Negative supply	Connects to GND (single) or –5V (dual); supports true bipolar operation
8 (–OUT)	Negative differential output	Delivers –[+IN–(–IN)] × 5 + VOCM; complementary to +OUT for balanced signaling

Key Features

Feature	Design Value
Fully differential I/O architecture	Eliminates even-order distortion and enables rejection of common-mode noise in high-EMI environments
Laser-trimmed 5× gain resistors	Guarantees ±0.3% max gain error over temperature - no external calibration required
Independent VOCM control	Allows level-shifting output common mode without affecting input stage bias or dynamic range
Rail-to-rail input common-mode range	Supports direct interfacing to sensors, DACs, or other rails without attenuation or clamping
10,000pF capacitive load stability	Enables direct connection to long traces, connectors, or ADC input capacitance without compensation

Applications

High-Speed Data Acquisition	Precision Sensor Signal Conditioning
Use Scenario: Driving SAR or sigma-delta ADCs requiring matched differential inputs with precise gain and phase balance. IC Role / Device Role / Timing Role: Differential driver amplifying and level-shifting sensor outputs to match ADC's input range and common-mode requirements. Use Value: 5× fixed gain with ±0.3% error and <2.5mV offset ensures accurate full-scale utilization; VOCM control aligns output CM with ADC reference without external resistive dividers.	Use Scenario: Conditioning low-level bridge or RTD sensor outputs in industrial process controllers. IC Role / Device Role / Timing Role: Low-noise, low-drift differential amplifier converting single-ended sensor signals to robust differential format for noise immunity. Use Value: Rail-to-rail input accepts wide sensor common-mode excursions; 3.5ppm/°C gain tempco minimizes thermal drift errors in unregulated enclosures.
Medical Instrumentation Front-End	Communications Baseband Processing
Use Scenario: Amplifying ECG/EEG electrode signals prior to digitization in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-power, fully differential amplifier providing gain, common-mode rejection, and EMI-resistant signal transmission. Use Value: 1mA max supply current extends battery life; 10,000pF load stability allows direct routing to shielded cables or connector interfaces without added series resistance.	Use Scenario: Level-shifting and amplifying baseband I/Q signals in wireless transceivers before DAC or mixer stages. IC Role / Device Role / Timing Role: Fixed-gain differential driver translating single-ended DAC outputs into balanced, amplitude-matched I/Q paths. Use Value: Precise 5× gain and trimmed phase response ensure quadrature fidelity; VOCM pin enables dynamic adjustment of output common mode to match mixer bias points.

High-Speed Data Acquisition

Precision Sensor Signal Conditioning

Use Scenario: Driving SAR or sigma-delta ADCs requiring matched differential inputs with precise gain and phase balance.

IC Role / Device Role / Timing Role: Differential driver amplifying and level-shifting sensor outputs to match ADC's input range and common-mode requirements.

Use Value: 5× fixed gain with ±0.3% error and <2.5mV offset ensures accurate full-scale utilization; VOCM control aligns output CM with ADC reference without external resistive dividers.

Use Scenario: Conditioning low-level bridge or RTD sensor outputs in industrial process controllers.

IC Role / Device Role / Timing Role: Low-noise, low-drift differential amplifier converting single-ended sensor signals to robust differential format for noise immunity.

Use Value: Rail-to-rail input accepts wide sensor common-mode excursions; 3.5ppm/°C gain tempco minimizes thermal drift errors in unregulated enclosures.

Medical Instrumentation Front-End

Communications Baseband Processing

Use Scenario: Amplifying ECG/EEG electrode signals prior to digitization in portable diagnostic devices.

IC Role / Device Role / Timing Role: Low-power, fully differential amplifier providing gain, common-mode rejection, and EMI-resistant signal transmission.

Use Value: 1mA max supply current extends battery life; 10,000pF load stability allows direct routing to shielded cables or connector interfaces without added series resistance.

Use Scenario: Level-shifting and amplifying baseband I/Q signals in wireless transceivers before DAC or mixer stages.

IC Role / Device Role / Timing Role: Fixed-gain differential driver translating single-ended DAC outputs into balanced, amplitude-matched I/Q paths.

Use Value: Precise 5× gain and trimmed phase response ensure quadrature fidelity; VOCM pin enables dynamic adjustment of output common mode to match mixer bias points.

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD8138ARZ	Higher bandwidth (350MHz vs 4MHz), higher supply current (20mA), no fixed gain - requires external resistors for gain setting	Better suited for high-frequency video or RF IF applications; less optimal for low-power, precision DC-coupled systems	Select AD8138ARZ only when >100MHz small-signal bandwidth is required and power budget allows 20× higher quiescent current
LTC6409IDD	Higher gain-bandwidth (1GHz), lower noise (1.1nV/√Hz), but fixed 2× gain and no VOCM pin - output common mode tied to V_CM supply	Ideal for high-speed ADC drivers where gain flexibility and independent level shift are secondary to speed/noise	Choose LTC6409IDD for >100Msps sampling systems; avoid when VOCM-controlled level shifting or 5× gain is mandatory

Compared with AD8138ARZ and LTC6409IDD, the LTC1992-5CMS8#PBF uniquely combines low-power operation (1mA), precision fixed 5× gain, and independent VOCM control - making it the optimal choice for DC-accurate, space- and power-constrained differential signal conditioning where gain stability and level-shifting flexibility outweigh raw bandwidth needs.

Availability

LTC1992-5CMS8#PBF is available at Aetrix Electronics and suitable for high-precision data acquisition, medical instrumentation, industrial sensor interfaces, and communications baseband circuits requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for LTC1992-5CMS8#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The LTC1992 family was designed by Linear Technology (acquired by ADI in 2017) specifically for precision, low-power, fully differential signal conditioning - targeting applications demanding accurate gain, excellent phase matching, and flexible common-mode control in compact footprints.

FAQ

What is the guaranteed gain accuracy of the LTC1992-5CMS8#PBF over temperature?

The LTC1992-5CMS8#PBF guarantees ±0.3% maximum differential gain error across the full operating temperature range of –40°C to 85°C. This specification is achieved via laser-trimmed on-chip resistors and is explicitly validated for the LTC1992-5 variant in the official datasheet's Electrical Characteristics table under "Differential Gain Error" for C/I-grade parts.

Does the LTC1992-5CMS8#PBF require external gain-setting resistors?

No, the LTC1992-5CMS8#PBF does not require external gain-setting resistors. It integrates precision laser-trimmed resistors to deliver a fixed 5× differential gain. This eliminates component count, layout sensitivity, and resistor matching concerns - a key differentiator versus general-purpose op-amps configured as differential amplifiers.

Can the LTC1992-5CMS8#PBF operate from a single 3.3V supply?

Yes, the LTC1992-5CMS8#PBF is fully specified for single-supply operation down to 2.7V. At 3.3V, it maintains rail-to-rail input common-mode range (–0.1V to +2.0V), rail-to-rail output swing, and all key specifications including ±0.3% gain error and <2.5mV offset - making it well-suited for modern 3.3V embedded systems.

What is the function of the VMID pin on the LTC1992-5CMS8#PBF?

The VMID pin on the LTC1992-5CMS8#PBF provides an internal buffered mid-supply reference voltage (2.44V–2.56V at 25°C). It is intended for biasing external circuitry - such as single-ended input stages or level-shift networks - and is not used for internal amplifier operation. It is not connected to the VOCM or feedback network.

Is the LTC1992-5CMS8#PBF stable when driving large capacitive loads like ADC inputs?

Yes, the LTC1992-5CMS8#PBF is explicitly characterized and guaranteed stable with capacitive loads up to 10,000pF. This eliminates the need for series isolation resistors typically required with standard op-amps, simplifying design and preserving signal integrity when driving high-input-capacitance ADCs or long PCB traces.

LTC1992-5CMS8#PBF Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Packaging:: Tube

Product Status:: Active

Amplifier Type:: Differential

Number of Circuits:: 1

Output Type:: Differential, Rail-to-Rail

Slew Rate:: 1.5V/µs

Gain Bandwidth Product:: 3.2 MHz

-3db Bandwidth:: -

Current - Input Bias:: 2 pA

Voltage - Input Offset:: 250 µV

Current - Supply:: 700µA

Current - Output / Channel:: 30 mA

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 11 V

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP

LTC1992-5CMS8#PBF FAQ

1.How can I place an order for LTC1992-5CMS8#PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for LTC1992-5CMS8#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LTC1992-5CMS8#PBF reliable?

The price and inventory of LTC1992-5CMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1992-5CMS8#PBF is usually 5 days.

3.What payment methods are accepted for LTC1992-5CMS8#PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1992-5CMS8#PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LTC1992-5CMS8#PBF?

LTC1992-5CMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LTC1992-5CMS8#PBF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LTC1992-5CMS8#PBF?

For technical support, including LTC1992-5CMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1992-5CMS8#PBF requirements.

6.How does Aetrix verify that LTC1992-5CMS8#PBF is sourced from the original manufacturer or authorized distributors?

All LTC1992-5CMS8#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC1992-5CMS8#PBF meets industry standards.

7.What is the process for return or replacement of LTC1992-5CMS8#PBF?

All LTC1992-5CMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1992-5CMS8#PBF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LTC1992-5CMS8#PBF part is unused and in its original packaging.

Return procedure for LTC1992-5CMS8#PBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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