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Analog Devices Inc. LTC1992HMS8#TRPBF
- Part No.:
- LTC1992HMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC1992HMS8#TRPBF.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,686
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Product details
Overview
LTC1992HMS8#TRPBF from Analog Devices (formerly Linear Technology) is an unconstrained fully differential amplifier optimized for single-ended-to-differential conversion, precision level shifting, and high-fidelity signal conditioning in industrial and instrumentation systems. It delivers ±0.3% max gain error over –40°C to 125°C, rail-to-rail 10mA output drive, and stable operation with capacitive loads up to 10,000pF - enabling direct interface with ADC drivers and high-impedance sensors.
For engineers reviewing the LTC1992HMS8#TRPBF datasheet, LTC1992HMS8#TRPBF pinout, LTC1992HMS8#TRPBF application, or LTC1992HMS8#TRPBF equivalent, this device is selected for its adjustable-gain architecture, VOCM-controlled common-mode output setting, low 1mA supply current, and guaranteed extended-temperature performance in 8-pin MSOP packaging.
Technical Context
The LTC1992HMS8#TRPBF implements a fully differential topology with independent internal common-mode feedback, ensuring balanced +OUT/–OUT phase response and reduced second-harmonic distortion. Its differential inputs accept rail-to-rail signals with input common mode ranging from –VS to (+VS – 1.3V), while the VOCM pin sets output common mode independently - decoupling level-shifting from input bias constraints.
It operates from single supplies as low as 2.7V or dual supplies up to ±5V, with guaranteed specifications across –40°C to 125°C. The amplifier features 3.0MHz gain-bandwidth product (typical), 0.5–1.5V/μs slew rate, and maintains stability without external compensation even under 10nF load capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to ±5V - supports low-voltage battery-powered and legacy ±5V industrial rails. |
| Supply Current (max) | 1.5mA at 125°C - enables thermally constrained embedded designs with minimal power budget impact. |
| Differential Offset Voltage (max) | ±4mV over temperature - ensures <0.1% DC accuracy in precision sensor front-ends and calibration-critical paths. |
| Output Drive Capability | ±10mA min - directly drives 50Ω transmission lines or ADC input networks without external buffers. |
| Capacitive Load Stability | Up to 10,000pF - eliminates need for isolation resistors when driving long traces or high-C ADC inputs. |
| Gain-Bandwidth Product | 3.0MHz (typical) - supports >100ksps sampling of 12-bit+ signals with adequate closed-loop bandwidth. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, motor control, and industrial PLC environments. |
Pinout & Package
Package: 8-lead plastic MSOP (3mm × 3mm, 0.65mm pitch), exposed pad for thermal enhancement. RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–IN) | Inverting differential input | Accepts complementary input signal; referenced to VMID for single-ended use cases. |
| 2 (VOCM) | Output common-mode control | Sets average of +OUT and –OUT; enables level shifting without affecting differential gain or offset. |
| 3 (+VS) | Positive supply rail | Connects to main positive supply; internal regulator derives bias for core circuitry. |
| 4 (+OUT) | Positive differential output | Delivers amplified, phase-matched output; sinks/sources 10mA with rail-to-rail swing. |
| 5 (+IN) | Non-inverting differential input | Primary signal input node; high-impedance (500MΩ) and low-input-bias (2pA typ). |
| 6 (VMID) | Internal reference midpoint | Provides buffered ½(+VS –VS) voltage; used for single-ended input biasing and gain-setting networks. |
| 7 (–VS) | Negative supply rail | Ground or negative rail connection; supports true dual-supply or single-supply operation. |
| 8 (–OUT) | Negative differential output | Complementary output to +OUT; matched timing and amplitude ensure <–60dB balance error. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Rejects common-mode noise on both input and output paths, improving SNR in noisy industrial environments. |
| VOCM-controlled output common mode | Enables seamless interfacing to ADCs with fixed input common-mode requirements (e.g., 0.9V, 1.25V, 2.5V). |
| Rail-to-rail output swing | Maximizes dynamic range utilization - e.g., 4.75Vpp into 10kΩ load at 5V supply - reducing required gain stages. |
| Stable with 10,000pF capacitive load | Eliminates need for series output resistors or external compensation, simplifying layout and lowering BOM count. |
| Low 1mA supply current (max) | Supports always-on sensor signal chains in energy-constrained applications like condition monitoring nodes. |
| Extended temperature grade (–40°C to 125°C) | Guarantees full parametric performance in harsh environments without derating or thermal margin penalties. |
Applications
| Industrial Sensor Signal Conditioning | High-Resolution ADC Driver |
|---|---|
|
Use Scenario: Amplifying low-level bridge sensor outputs (e.g., strain gauges, pressure transducers) in factory automation PLC modules. IC Role / Device Role / Timing Role: Fully differential amplifier converting single-ended sensor excitation and output into balanced differential signals for noise-immune transmission. Use Value: Achieves <0.01% THD+N at 1kHz and ±0.3% gain error over temperature - preserving 16-bit measurement integrity without recalibration. |
Use Scenario: Driving SAR and sigma-delta ADCs (e.g., AD768x, ADS126x) in precision data acquisition systems. IC Role / Device Role / Timing Role: Differential driver providing matched +OUT/–OUT slew and settling to meet ADC aperture jitter and sampling accuracy requirements. Use Value: Delivers 3.0MHz GBW and 1.5V/μs slew rate - enabling <100ns settling to 16-bit accuracy for 100ksps+ throughput. |
| Single-Supply Level Shifting Interface | Multichannel Phase-Matched Signal Chain |
|
Use Scenario: Interfacing legacy ±5V analog subsystems (e.g., op-amp-based filters) to modern 3.3V or 2.5V ADCs in test equipment. IC Role / Device Role / Timing Role: Level shifter translating differential signals between incompatible supply domains while maintaining common-mode compatibility. Use Value: VOCM pin allows precise output common-mode alignment (e.g., 1.25V) independent of input common mode - eliminating external resistor dividers. |
Use Scenario: Synchronizing multiple analog channels in audio analyzers, medical imaging front-ends, or phased-array receivers. IC Role / Device Role / Timing Role: Precision differential amplifier ensuring matched group delay, gain, and phase response across parallel signal paths. Use Value: Internal common-mode feedback reduces inter-channel phase imbalance to <0.1° - critical for coherent beamforming and FFT-based analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8138ARMZ | Fixed 1× gain, higher 350MHz GBW, but requires external gain-setting resistors for non-unity configurations; 125°C rating only in SOIC package. | Better suited for high-speed video or RF IF conditioning; less optimal for low-power, wide-temp sensor interfaces due to 20mA quiescent current. | Select AD8138ARMZ only when >100MHz bandwidth is mandatory and power consumption is secondary. |
| THS4561IRGET | Adjustable gain via external resistors; lower 1.8mA max supply current; specified only to 105°C (not 125°C); no VMID pin. | Preferred for cost-sensitive consumer-grade instrumentation where extended temperature is not required. | Choose THS4561IRGET for commercial-temperature applications needing lower IQ, but verify VOCM control flexibility against system requirements. |
Compared with AD8138ARMZ and THS4561IRGET, the LTC1992HMS8#TRPBF uniquely combines guaranteed 125°C operation, integrated VMID reference, VOCM-based level shifting, and 10,000pF load stability - making it the only option qualified for uncooled industrial motor control and automotive under-hood signal conditioning.
Availability
LTC1992HMS8#TRPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, high-resolution data acquisition systems, and automotive signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC1992HMS8#TRPBF 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 specifically for precision differential signal conditioning in harsh-environment applications - emphasizing rail-to-rail operation, VOCM flexibility, and extended-temperature reliability without external compensation.
FAQ
What is the maximum capacitive load the LTC1992HMS8#TRPBF can drive without instability?
The LTC1992HMS8#TRPBF is specified to remain stable with capacitive loads up to 10,000pF across its full operating temperature range (–40°C to 125°C). This eliminates the need for series output resistors or external compensation networks when driving high-capacitance ADC inputs, long PCB traces, or coaxial cables - a key advantage over many competing differential amplifiers that require ≥100Ω isolation resistors beyond 1000pF.
How does the VOCM pin function in the LTC1992HMS8#TRPBF, and what voltage range is supported?
The VOCM pin on the LTC1992HMS8#TRPBF sets the output common-mode voltage (VOUTCM) independently of the input common-mode level. It accepts a DC voltage from (–VS + 0.5V) to (+VS – 1.3V), allowing precise alignment to ADC input requirements (e.g., 0.9V, 1.25V, or 2.5V) without altering gain or offset. This capability is intrinsic to the LTC1992HMS8#TRPBF's internal common-mode feedback architecture.
Does the LTC1992HMS8#TRPBF require external gain-setting resistors?
No - the LTC1992HMS8#TRPBF is an unconstrained fully differential amplifier with no internal gain-setting resistors. Its differential gain is determined entirely by external feedback networks, enabling flexible configuration from unity to high gain. This contrasts with fixed-gain variants (e.g., LTC1992-1HMS8#TRPBF), which integrate precision on-chip resistors for ±0.3% gain accuracy.
What is the guaranteed operating temperature range for the LTC1992HMS8#TRPBF?
The LTC1992HMS8#TRPBF is guaranteed to meet all electrical specifications over the extended industrial temperature range of –40°C to +125°C. This rating is explicitly confirmed in the Absolute Maximum Ratings and Specified Temperature Range tables of the official datasheet, distinguishing it from the C-grade (0°C to 70°C) and I-grade (–40°C to 85°C) variants in the same family.
Can the LTC1992HMS8#TRPBF operate from a single 3.3V supply?
Yes - the LTC1992HMS8#TRPBF supports single-supply operation down to 2.7V. With a 3.3V supply, it delivers rail-to-rail output swing (typically 0.02V to 3.28V per output), 10mA output drive, and maintains full AC/DC performance including 3.0MHz GBW and ±4mV max offset. The VMID pin provides a stable 1.65V reference for single-ended input biasing, simplifying system integration.
LTC1992HMS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC1992HMS8#TRPBF FAQ
1.How can I place an order for LTC1992HMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1992HMS8#TRPBF 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 LTC1992HMS8#TRPBF reliable?
The price and inventory of LTC1992HMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1992HMS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1992HMS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1992HMS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1992HMS8#TRPBF?
LTC1992HMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1992HMS8#TRPBF 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 LTC1992HMS8#TRPBF?
For technical support, including LTC1992HMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1992HMS8#TRPBF requirements.
6.How does Aetrix verify that LTC1992HMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1992HMS8#TRPBF 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 LTC1992HMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1992HMS8#TRPBF?
All LTC1992HMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1992HMS8#TRPBF, 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 LTC1992HMS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC1992HMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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