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Analog Devices Inc. LT1499IS#PBF
- Part No.:
- LT1499IS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1499IS#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,917
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Product details
Overview
LT1499IS#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail input and output precision operational amplifier optimized for single- and dual-supply systems. It delivers 10MHz gain-bandwidth, 6V/μs slew rate, 475μV max input offset voltage, 110dB PSRR, and stable operation driving capacitive loads up to 10,000pF - enabling high-accuracy buffering in 3V A/D converter front-ends and low-voltage active filters.
For engineers reviewing the LT1499IS#PBF datasheet, LT1499IS#PBF pinout, LT1499IS#PBF application, or LT1499IS#PBF equivalent, key selection criteria include guaranteed rail-to-rail CMR performance across full supply range (2.2V–36V), channel-to-channel matching for multi-amplifier signal chains, and C-Load™ stability with heavy capacitive loads without external compensation.
Technical Context
The LT1499IS#PBF employs a patented dual-input-stage trimming architecture: one stage trimmed at V– and another at V+, ensuring superior common-mode rejection (>90dB) over full rail-to-rail input range. This eliminates typical phase reversal and guarantees <1LSB error when buffering 12-bit ADCs on 3V supplies.
Its C-Load™ design enables unconditional stability with capacitive loads up to 10,000pF, eliminating need for isolation resistors in sensor interface or DAC output stages. The quad configuration supports tightly matched DC parameters (e.g., 750μV max input offset voltage match) and high channel separation (116dB), critical for multi-channel instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10MHz - supports closed-loop bandwidth up to ~2.5MHz in unity-gain stable configurations for precision signal conditioning. |
| Slew Rate | 6V/μs - enables fast settling of ±2V signals in <330ns, suitable for multiplexed sensor data acquisition. |
| Input Offset Voltage | 475μV max - ensures ≤0.012% gain error in 4V full-scale 12-bit systems, meeting LSB-critical ADC driver specs. |
| Supply Range | 2.2V to ±15V - operates from single 3V battery to industrial ±15V rails without redesign. |
| Capacitive Load Drive | 10,000pF - drives long cables, piezoelectric sensors, or DAC output filters without oscillation or added series resistance. |
| PSRR | 110dB - rejects >99.999% of supply ripple, critical for noise-sensitive analog front-ends in mixed-signal PCBs. |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation, automotive body electronics, and outdoor IoT nodes. |
Pinout & Package
LT1499IS#PBF is housed in a 14-lead plastic SO (S14) package with standard quad op amp pinout and exposed pad thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking 30mA, swings within 20mV of rails at light load. |
| 2 | –IN A | Inverting input of Amp A - rail-to-rail common-mode range, no phase reversal beyond supplies. |
| 3 | +IN A | Non-inverting input of Amp A - matched bias current (≤650nA) minimizes offset in high-Z sensor interfaces. |
| 4 | V+ | Positive supply rail - accepts 2.2V to 36V or +15V in dual-supply mode; decoupling required near pin. |
| 5 | +IN B | Non-inverting input of Amp B - identical DC specs to Amp A; enables matched differential pair configurations. |
| 6 | –IN B | Inverting input of Amp B - channel-to-channel VOS match ≤750μV supports precision instrumentation amplifiers. |
| 7 | OUT B | Amplifier B output - independent output stage; allows simultaneous dual-channel signal processing. |
| 8 | OUT D | Amplifier D output - pin 8 is output, not ground; avoids confusion with dual-op-amp SO-8 layouts. |
| 9 | –IN D | Inverting input of Amp D - supports 4-channel parallel filtering or multi-sensor signal conditioning. |
| 10 | +IN D | Non-inverting input of Amp D - all four inputs share same rail-to-rail CMR and low noise (12nV/√Hz). |
| 11 | V– | Negative supply rail - connects to GND in single-supply mode or –15V in dual-supply; low impedance return path required. |
| 12 | +IN C | Non-inverting input of Amp C - enables synchronous sampling across four channels with matched timing. |
| 13 | –IN C | Inverting input of Amp C - supports fully differential 4-op-amp topologies like 3-op-amp INA variants. |
| 14 | OUT C | Amplifier C output - completes quad set; each output independently drives 10,000pF loads. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with input common-mode range from V– to V+ and output swing within 20mV of both rails at 0.5mA load - maximizes dynamic range in low-voltage systems. |
| Dual-trimmed input stages | Separate V–- and V+-referenced input stage trimming guarantees >90dB CMRR across full supply range - eliminates common-mode-induced errors in precision measurement. |
| C-Load™ capacitive drive | Stable with ≥10,000pF loads without external compensation - simplifies sensor interface design and reduces BOM count. |
| Low 12nV/√Hz input noise | Enables high-resolution signal amplification of µV-level transducer outputs without degrading SNR in 1kHz–10kHz band. |
| 110dB PSRR | Maintains precision under noisy supply conditions - critical for shared power domains with digital ICs or switching regulators. |
| Quad channel matching | Channel-to-channel VOS match ≤750μV and CMRR match ≥86dB - supports accurate multi-channel differential measurements without per-channel calibration. |
Applications
| ADC Front-End Buffering | Active Low-Voltage Filters |
|---|---|
Use Scenario: Driving the input of a 12-bit SAR ADC operating from a single 3V supply in portable medical sensors. IC Role / Device Role / Timing Role: Precision unity-gain buffer isolating high-impedance pH electrode from ADC sample capacitor. Use Value: Guarantees <1LSB added error due to VOS and maintains rail-to-rail linearity across full 0–3V input range. | Use Scenario: Implementing a 4th-order Butterworth anti-aliasing filter before a 100kHz sampling ADC in industrial data loggers. IC Role / Device Role / Timing Role: Quad op amp configured as two 2-pole Sallen-Key stages with matched components. Use Value: C-Load™ stability eliminates need for isolation resistors, preserving filter Q-factor and passband flatness. |
| Rail-to-Rail Signal Conditioning | Battery-Powered Instrumentation |
Use Scenario: Amplifying output of a 0–25mV thermocouple in a wide-temperature-range environmental monitor. IC Role / Device Role / Timing Role: First-stage non-inverting amplifier with gain = 100, powered from 3.3V LDO. Use Value: Rail-to-rail input accepts negative thermocouple offsets; 475μV VOS contributes <0.1°C error at 25°C. | Use Scenario: Multi-channel sensor hub in a handheld gas detector using CO, NO₂, and humidity sensors. IC Role / Device Role / Timing Role: Quad amplifier simultaneously conditioning four analog sensor outputs before multiplexed ADC conversion. Use Value: Matched DC specs (VOS, CMRR) enable software calibration across channels; 1.7mA per amp extends battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARUZ | Lower 7.5MHz GBW, 0.75V/μs slew rate; 10μV max VOS; higher 3.6mA supply current per amp. | Better DC precision but slower response; unsuitable for >100kHz closed-loop designs or fast-settling ADC drivers. | Select OP4177ARUZ only when ultra-low offset (<10μV) dominates over speed and power; verify layout compatibility with RU-14 package. |
| TLV2464IDR | Lower 6.4MHz GBW, 1.6V/μs slew rate; 1.5mV max VOS; 550μA supply current per amp; rail-to-rail I/O. | Optimized for ultra-low power, not precision; insufficient for 12-bit ADC buffering where <1LSB error is required. | Choose TLV2464IDR only for battery-life-critical applications with relaxed accuracy (≥10-bit); avoid in metrology-grade signal paths. |
Compared with OP4177ARUZ and TLV2464IDR, the LT1499IS#PBF uniquely balances 10MHz bandwidth, 6V/μs slew rate, sub-500μV offset, and 10,000pF capacitive drive - making it the only option among the three qualified for high-speed, high-accuracy, high-capacitance sensor interfaces without external compensation.
Availability
LT1499IS#PBF is available at Aetrix Electronics and suitable for industrial automation, portable instrumentation, and battery-powered sensor systems requiring stable component supply and long-term obsolescence management.
Supply support for LT1499IS#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 semiconductors, formed through the acquisition of Linear Technology in 2017.
The LT1499IS#PBF belongs to ADI's legacy Linear Technology precision op amp product line, engineered specifically for applications demanding rail-to-rail operation, low noise, high PSRR, and robust capacitive load drive in harsh industrial and portable environments.
FAQ
What is the maximum capacitive load the LT1499IS#PBF can drive without instability?
The LT1499IS#PBF is specified to remain stable with capacitive loads up to 10,000pF across its full operating temperature and supply range. This C-Load™ capability eliminates the need for external series resistors or compensation networks when driving ADC input capacitors, long PCB traces, or piezoelectric transducers - a key differentiator from standard op amps that oscillate above ~100pF.
Does the LT1499IS#PBF support true rail-to-rail input common-mode range?
Yes, the LT1499IS#PBF supports rail-to-rail input common-mode voltage from V– to V+, verified by guaranteed performance at both extremes. Its patented dual-input-stage architecture - with one stage trimmed at V– and another at V+ - ensures no phase reversal, monotonic behavior, and >90dB CMRR even when inputs are driven 0.1V beyond either rail, unlike conventional rail-to-rail op amps.
What is the guaranteed input offset voltage specification for LT1499IS#PBF over temperature?
For the LT1499IS#PBF (–40°C to +85°C grade), the maximum input offset voltage is 750μV when measured at VCM = V+ and VCM = V– + 0.1V. This limit applies across the full industrial temperature range and is tested per device, ensuring predictable error contribution in precision DC-coupled signal paths such as strain gauge or thermocouple amplifiers.
Can LT1499IS#PBF be used in single-supply 3V systems with 12-bit ADCs?
Yes - the LT1499IS#PBF is explicitly characterized and guaranteed to add less than 1LSB of error when used as a unity-gain buffer ahead of single-supply 12-bit ADCs operating from 3V. This guarantee is based on its 475μV max VOS, rail-to-rail output swing (within 20mV of rails), and low drift, making it ideal for portable medical, environmental, and industrial sensing nodes.
How does the LT1499IS#PBF compare to LT1498 in terms of pin compatibility and performance?
The LT1499IS#PBF is a quad op amp in 14-pin SO, while the LT1498 is dual in 8-pin SO or PDIP - they are not pin-compatible. Performance-wise, both share identical core specs (10MHz GBW, 6V/μs SR, 475μV VOS), but the LT1499IS#PBF provides four matched amplifiers in one package, enabling compact multi-channel designs with guaranteed channel-to-channel matching (e.g., ≤750μV VOS match), whereas LT1498 offers only two channels per package.
LT1499IS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 10.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 1.8mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
LT1499IS#PBF FAQ
1.How can I place an order for LT1499IS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1499IS#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 LT1499IS#PBF reliable?
The price and inventory of LT1499IS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1499IS#PBF is usually 5 days.
3.What payment methods are accepted for LT1499IS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1499IS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1499IS#PBF?
LT1499IS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1499IS#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 LT1499IS#PBF?
For technical support, including LT1499IS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1499IS#PBF requirements.
6.How does Aetrix verify that LT1499IS#PBF is sourced from the original manufacturer or authorized distributors?
All LT1499IS#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 LT1499IS#PBF meets industry standards.
7.What is the process for return or replacement of LT1499IS#PBF?
All LT1499IS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1499IS#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 LT1499IS#PBF part is unused and in its original packaging.
Return procedure for LT1499IS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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