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Analog Devices Inc. LT1498MPS8#PBF
- Part No.:
- LT1498MPS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1498MPS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:258
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Product details
Overview
LT1498MPS8#PBF from Analog Devices (formerly Linear Technology) is a dual rail-to-rail input and output precision operational amplifier optimized for high-accuracy, low-voltage signal conditioning. It delivers 10MHz gain-bandwidth, 6V/µs slew rate, 475µV max input offset voltage, 110dB PSRR, and operates across ±15V or 2.2V–36V single supplies - enabling use in 3V A/D converter front-ends, active filters, and battery-powered instrumentation.
For engineers reviewing the LT1498MPS8#PBF datasheet, LT1498MPS8#PBF pinout, LT1498MPS8#PBF application, or LT1498MPS8#PBF equivalent, this page provides verified specifications, temperature-rated performance (–55°C to 125°C), package mapping (8-lead SO), C-Load™ capacitive-load stability up to 10,000pF, and real-world design context for precision analog signal paths.
Technical Context
The LT1498MPS8#PBF implements a patented dual-input-stage trimming architecture: one NPN stage biased at V– and one PNP stage biased at V+, both trimmed independently to guarantee superior common-mode rejection (>90dB) over full rail-to-rail input range. This enables accurate DC-coupled buffering without phase reversal when inputs exceed supply rails.
Its C-Load™ compensation ensures unconditional stability driving heavy capacitive loads (up to 10,000pF), eliminating need for external isolation resistors in ADC driver or filter applications. The device maintains 10MHz GBW and 6V/µs slew rate across its full –55°C to 125°C operating range, with guaranteed <1LSB error in 3V-supply 12-bit data acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10MHz - supports stable closed-loop operation up to ~1MHz at unity gain in precision filter designs. |
| Slew Rate | 6V/µs - enables clean 100kHz full-scale sine wave output into 10kΩ load without distortion. |
| Input Offset Voltage | 475µV max - ensures ≤0.5mV total error in 3V single-supply 12-bit ADC interfaces (≤1LSB). |
| Supply Range | 2.2V to 36V single or ±15V dual - accommodates industrial sensors, portable medical devices, and legacy ±15V test equipment. |
| Capacitive Load Drive | Stable up to 10,000pF - eliminates external series resistor in ADC driver or cable-driving configurations. |
| PSRR | 110dB - rejects >99.999% of supply ripple, critical for low-noise sensor signal chains. |
| Operating Temperature | –55°C to 125°C - qualified for aerospace, downhole, and extended-temperature industrial control. |
Pinout & Package
LT1498MPS8#PBF is housed in an 8-lead plastic SO (S8) package with standard dual op amp pinout and exposed pad thermal enhancement per Linear Technology specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN A | Non-inverting input of Amplifier A - rail-to-rail capable, no phase reversal beyond supplies. |
| 2 | –IN A | Inverting input of Amplifier A - matched bias current (±650nA max) minimizes offset drift. |
| 3 | OUT A | Output of Amplifier A - rail-to-rail swing (within 20mV of rails at 0.5mA load) and 30mA drive capability. |
| 4 | V– | Negative supply pin - accepts ground or negative voltage; supports single- or dual-supply operation. |
| 5 | V+ | Positive supply pin - operates from 2.2V to 36V; PSRR remains >86dB across full range. |
| 6 | OUT B | Output of Amplifier B - independent channel with matched AC/DC specs to Amplifier A. |
| 7 | –IN B | Inverting input of Amplifier B - channel-to-channel VOS match ≤750µV ensures precision differential gain stages. |
| 8 | +IN B | Non-inverting input of Amplifier B - identical input structure and trimming as Pin 1 for consistent CMRR. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage (3V) systems without level-shifting circuitry. |
| Dual independent trimming (NPN/PNP stages) | Guarantees >90dB CMRR across entire input range - outperforms standard rail-to-rail op amps by ≥15dB. |
| C-Load™ internal compensation | Eliminates need for external isolation resistor when driving ADC input capacitance or long cables. |
| 110dB PSRR | Maintains accuracy in noisy environments (e.g., motor drives, switching power supplies) without additional supply filtering. |
| –55°C to 125°C operation | Qualified for extreme-environment applications including avionics, oil/gas downhole tools, and military systems. |
Applications
| Driving A-to-D Converters | Active Filters |
|---|---|
Use Scenario: Buffering sensor outputs into 12-bit SAR ADCs in portable medical devices powered from 3V coin cells. IC Role / Device Role / Timing Role: Precision unity-gain buffer with rail-to-rail input/output and <1LSB added error at 3V supply. Use Value: Eliminates external calibration and guarantees monotonicity across full temperature range (–55°C to 125°C). | Use Scenario: 4th-order Butterworth anti-aliasing filter preceding audio ADC in industrial vibration monitoring system. IC Role / Device Role / Timing Role: Dual op amp implementing 2-pole sections with 10MHz GBW ensuring flat group delay up to 100kHz. Use Value: C-Load™ stability allows direct connection to 10nF filter capacitors without series resistance or peaking. |
| Rail-to-Rail Buffer Amplifiers | Battery-Powered Systems |
Use Scenario: Level-shifting and buffering of pH sensor output (0–1.5V) into 0–3.3V microcontroller ADC input. IC Role / Device Role / Timing Role: Single-supply rail-to-rail I/O op amp with 475µV VOS and 1.7mA supply current per amplifier. Use Value: Full 0–3V input range captured without clipping; low quiescent current extends battery life. | Use Scenario: Signal conditioning front-end in handheld gas detector using electrochemical sensors. IC Role / Device Role / Timing Role: Low-power dual op amp powering reference buffers and transimpedance amplifiers from 3.6V Li-ion cell. Use Value: 2.2V minimum supply enables operation until battery reaches end-of-life (~2.5V), maximizing usable capacity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1498IS8#PBF | Same core specs but rated for –40°C to 85°C only; lower cost; not qualified for extended temperature. | Suitable for commercial/industrial equipment without extreme ambient requirements. | Select LT1498MPS8#PBF when operation below –40°C or above 85°C is required - e.g., aerospace or automotive under-hood. |
| ADA4661-2ARZ | Lower VOS (120µV typ), higher GBW (16MHz), but only rated to 125°C (not –55°C); no C-Load™ - requires external compensation for >1000pF loads. | Better for high-speed, ultra-low-offset applications where capacitive load is <1nF and cold temperature not needed. | Choose LT1498MPS8#PBF when driving large ADC input capacitances or operating in cryogenic environments. |
Compared with LT1498IS8#PBF, LT1498MPS8#PBF adds guaranteed performance at –55°C and enhanced reliability screening; versus ADA4661-2ARZ, it trades some offset and bandwidth for robust capacitive-load immunity and wider cold-temperature coverage - critical for unheated outdoor or space-constrained embedded systems.
Availability
LT1498MPS8#PBF is available at Aetrix Electronics and suitable for precision data acquisition, industrial sensor interfaces, and aerospace signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for LT1498MPS8#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 acquired Linear Technology in 2017 and maintains full product support, manufacturing, and qualification for all LT-branded precision analog ICs.
The LT1498 product line delivers rail-to-rail precision op amps engineered for high-accuracy signal conditioning in harsh environments - emphasizing low offset, wide supply range, and capacitive-load stability for sensor, measurement, and control systems.
FAQ
What is the maximum capacitive load the LT1498MPS8#PBF can drive without oscillation?
The LT1498MPS8#PBF features C-Load™ internal compensation and is specified to remain stable driving capacitive loads up to 10,000pF. This eliminates the need for external isolation resistors in ADC driver, filter, or cable-driving applications - a key differentiator from standard op amps that require series resistance for stability beyond ~100pF.
Does the LT1498MPS8#PBF support true rail-to-rail input operation with no phase reversal?
Yes. The LT1498MPS8#PBF uses independent NPN and PNP input stages, each trimmed at opposite supply rails. This patented architecture guarantees rail-to-rail input common-mode range (V– to V+) with no phase reversal or latch-up when inputs exceed supply voltages - critical for fault-tolerant sensor interfaces and multiplexed signal paths.
What is the guaranteed input offset voltage specification for LT1498MPS8#PBF over its full temperature range?
Over the full –55°C to 125°C operating range, the LT1498MPS8#PBF is guaranteed to have a maximum input offset voltage of 1100µV (at VCM = V+ – 0.5V or V– + 0.5V). At 25°C, the max is 475µV. This specification ensures predictable error contribution in precision DC-coupled circuits across extreme environmental conditions.
Can the LT1498MPS8#PBF operate from a single 3V supply while maintaining 12-bit accuracy with a 3V ADC?
Yes. The LT1498MPS8#PBF is explicitly characterized and guaranteed to add less than 1LSB of error when used as a unity-gain buffer driving a 12-bit ADC from a single 3V supply. Its rail-to-rail input/output, low VOS (≤475µV), and high PSRR (110dB) collectively ensure full-scale accuracy without calibration.
What package type and lead finish does LT1498MPS8#PBF use?
The LT1498MPS8#PBF is supplied in an 8-lead plastic SO (S8) package with lead-free (Pb-free) finish, marked "1498MP" on top. It complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing unlimited floor life at ≤30°C/60% RH.
LT1498MPS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 10.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 1.8mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1498MPS8#PBF FAQ
1.How can I place an order for LT1498MPS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1498MPS8#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 LT1498MPS8#PBF reliable?
The price and inventory of LT1498MPS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1498MPS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1498MPS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1498MPS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1498MPS8#PBF?
LT1498MPS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1498MPS8#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 LT1498MPS8#PBF?
For technical support, including LT1498MPS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1498MPS8#PBF requirements.
6.How does Aetrix verify that LT1498MPS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1498MPS8#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 LT1498MPS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1498MPS8#PBF?
All LT1498MPS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1498MPS8#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 LT1498MPS8#PBF part is unused and in its original packaging.
Return procedure for LT1498MPS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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