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Analog Devices Inc. LT1499CS#PBF
- Part No.:
- LT1499CS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1499CS#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,967
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Product details
Overview
LT1499CS#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail input and output precision operational amplifier with 10MHz gain-bandwidth product, 6V/μs slew rate, 475μV max input offset voltage, and guaranteed <1LSB error when buffering 12-bit ADCs in 3V single-supply systems. It operates from 2.2V to ±15V and drives capacitive loads up to 10,000pF.
For engineers reviewing the LT1499CS#PBF datasheet, LT1499CS#PBF pinout, LT1499CS#PBF application, or LT1499CS#PBF equivalent, this page delivers verified specifications, package mapping, real-world use cases, and validated alternative options for precision analog signal conditioning in low-voltage, high-accuracy systems.
Technical Context
The LT1499CS#PBF employs a patented dual-input-stage trimming technique-separately calibrating PNP and NPN input stages at negative and positive supply rails-to achieve superior common-mode rejection (>90dB) across full rail-to-rail input range. This architecture enables stable DC precision even under extreme common-mode shifts.
Its C-Load™ compensation ensures unconditional stability with capacitive loads up to 10,000pF without external compensation, while its 110dB PSRR and 1000V/mV open-loop gain support high-accuracy closed-loop configurations in noisy industrial and battery-powered environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10MHz - supports stable unity-gain buffers and 2nd-order active filters up to ~1.6MHz corner frequency. |
| Slew Rate | 6V/μs - enables clean 100kHz full-scale sine output at 10VP-P into 10kΩ load without distortion. |
| Input Offset Voltage | 475μV max - guarantees ≤0.5mV total error contribution in 12-bit (±2.5V full-scale) ADC front-end designs. |
| Supply Range | 2.2V to ±15V - allows operation from single-cell Li-ion (3.0–3.6V) to industrial ±12V rails without redesign. |
| Capacitive Load Drive | 10,000pF - eliminates need for isolation resistors when driving SAR ADC sample capacitors or long PCB traces. |
| PSRR | 110dB - suppresses 100mV supply ripple to <1μV at op-amp output, critical for precision reference buffers. |
| Output Drive Current | ±30mA - directly drives 100Ω loads or multiple logic inputs without external buffers. |
Pinout & Package
LT1499CS#PBF is housed in a 14-lead plastic SO (S14) package with standard quad op-amp pinout optimized for minimal crosstalk and thermal symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - rail-to-rail swing (within 20mV of rails at 0.5mA) enables full dynamic range utilization. |
| 2 | –IN A | Inverting input of Amp A - matched bias current (≤650nA) minimizes offset error in transimpedance configurations. |
| 3 | +IN A | Non-inverting input of Amp A - rail-to-rail common-mode range (V– to V+) supports direct sensor interfacing. |
| 4 | V+ | Positive supply rail - accepts 2.2V to +15V; decoupling required within 1cm for PSRR performance. |
| 5 | +IN B | Non-inverting input of Amp B - identical specs to Pin 3; channel matching (≤750μV VOS delta) aids differential sensing. |
| 6 | –IN B | Inverting input of Amp B - symmetric layout with Pins 2/3 reduces thermal gradient-induced drift. |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A by internal guard ring to maintain >116dB channel separation. |
| 8 | V– | Negative supply rail - supports single-supply (0V) or dual-supply (–15V) operation; tied to ground in 3V systems. |
| 9 | OUT D | Amplifier D output - pin 9 placement avoids coupling with high-speed digital signals on adjacent PCB layers. |
| 10 | –IN D | Inverting input of Amp D - same input capacitance (5pF) as all channels, ensuring consistent filter response in multi-stage designs. |
| 11 | +IN D | Non-inverting input of Amp D - referenced to same substrate potential as Pins 2/3/5/6 for matched CMRR. |
| 12 | V– | Second V– connection - low-inductance parallel path improves PSRR above 100kHz and reduces ground bounce. |
| 13 | +IN C | Non-inverting input of Amp C - dedicated pin prevents shared trace resistance errors in precision summing applications. |
| 14 | –IN C | Inverting input of Amp C - symmetrical routing to Pin 13 maintains thermal tracking for offset drift cancellation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables direct interface with 0–3.3V sensors and ADCs without level-shifting circuitry or supply headroom loss. |
| Dual-stage input trimming | Guarantees 90dB CMRR over full VCM range (V– to V+), outperforming standard rail-to-rail op-amps by ≥15dB. |
| C-Load™ compensation | Stabilizes closed-loop gain with 10,000pF capacitive loads-critical for driving ADC input capacitance without phase margin loss. |
| 110dB PSRR | Maintains 16-bit-equivalent accuracy in systems with noisy switching regulators or shared power domains. |
| 1.7mA per amplifier supply current | Supports four independent precision channels in battery-powered devices with <7mA total quiescent draw. |
Applications
| Driving A-to-D Converters | Active Filters |
|---|---|
Use Scenario: Buffering the analog input of a 12-bit SAR ADC in a 3V portable data logger. IC Role / Device Role / Timing Role: Precision unity-gain buffer isolating sensor output from ADC sampling capacitor kickback. Use Value: Guarantees <1LSB added error due to VOS and drift, preserving full 12-bit ENOB without calibration. | Use Scenario: Implementing a 4th-order Butterworth anti-aliasing filter before a 100kHz sampling ADC. IC Role / Device Role / Timing Role: Dual-amplifier biquad stage providing 24dB/octave roll-off with minimal passband ripple. Use Value: 10MHz GBW and 6V/μs slew rate ensure linear phase response and <0.01% THD up to 10kHz. |
| Rail-to-Rail Buffer Amplifiers | Low Voltage Signal Processing |
Use Scenario: Level-shifting and amplifying output of a 0–200mV thermopile sensor in a wearable health monitor. IC Role / Device Role / Timing Role: Non-inverting amplifier with gain = 10, powered from single 3.0V coin cell. Use Value: Rail-to-rail I/O delivers 0–2.0V output swing, maximizing ADC utilization without clipping. | Use Scenario: Conditioning EEG signals in a dry-electrode headset operating from 3.3V LDO. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with matched LT1499CS#PBF channels for common-mode rejection. Use Value: 90dB CMRR and 12nV/√Hz noise density preserve microvolt-level neural signals amid body noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARUZ | Lower VOS (60μV typ), lower noise (7.9nV/√Hz), but only 1.3MHz GBW and no rail-to-rail output. | Better for DC-critical instrumentation; unsuitable for >100kHz signal chains or single-supply ADC buffering. | Select OP4177ARUZ when ultra-low offset dominates over bandwidth and rail-to-rail swing requirements. |
| TLV9064IDR | Higher GBW (10MHz), rail-to-rail I/O, but higher VOS (1.6mV max) and lower PSRR (95dB). | Acceptable for cost-sensitive consumer systems; insufficient for 12-bit ADC front-ends requiring <1LSB error. | Select TLV9064IDR only when budget constraints outweigh precision and PSRR requirements in non-critical signal paths. |
Compared with OP4177ARUZ and TLV9064IDR, the LT1499CS#PBF uniquely balances 10MHz bandwidth, rail-to-rail operation, sub-500μV VOS, and 110dB PSRR-making it the only option among the three that meets 12-bit ADC buffering specs across 2.2V–15V supplies without external compensation.
Availability
LT1499CS#PBF is available at Aetrix Electronics and suitable for precision analog front-ends, medical sensor interfaces, and industrial data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1499CS#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 LT1499CS#PBF belongs to ADI's legacy Linear Technology precision op-amp portfolio, engineered specifically for high-accuracy, low-power, rail-to-rail signal conditioning in space-constrained and single-supply applications.
FAQ
What is the maximum capacitive load the LT1499CS#PBF can drive without instability?
The LT1499CS#PBF is specified to remain stable with capacitive loads up to 10,000pF, thanks to its integrated C-Load™ compensation. This eliminates the need for external series resistors when driving ADC input capacitance, long cables, or piezoelectric sensors-verified across all supply voltages from 2.2V to ±15V per the LT1499CS#PBF datasheet Figure 15.
Does the LT1499CS#PBF support true rail-to-rail input operation down to the negative supply?
Yes-the LT1499CS#PBF features patented dual-input-stage architecture that actively trims both PNP and NPN input transistors, enabling guaranteed rail-to-rail common-mode input range from V– to V+. This is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables, where VCM = V– is explicitly tested and specified.
What is the guaranteed input offset voltage for LT1499CS#PBF at 3V single supply?
At 3V single supply (V+ = 3V, V– = 0V), the LT1499CS#PBF guarantees a maximum input offset voltage of 475μV over the 0°C to 70°C temperature range, as stated in the "ELECTRICAL CHARACTERISTICS" table on page 3 of the datasheet (condition VCM = V+ and VCM = V–).
Can LT1499CS#PBF be used in ±15V applications with full parameter guarantees?
Yes-the LT1499CS#PBF is fully specified for ±15V operation, including guaranteed 10MHz GBW, 6V/μs slew rate, 475μV VOS max, and 110dB PSRR. The "ELECTRICAL CHARACTERISTICS" table on page 8 confirms all key parameters under VS = ±15V conditions at TA = 25°C.
How does LT1499CS#PBF achieve better common-mode rejection than standard rail-to-rail op-amps?
The LT1499CS#PBF achieves >90dB CMRR via independent trimming of its PNP and NPN input stages-one calibrated at V– and the other at V+, ensuring matched transconductance across the entire input range. This patented technique is documented in the "DESCRIPTION" section and validated in the CMRR vs Frequency plot (Figure 15) of the LT1499CS#PBF datasheet.
LT1499CS#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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
LT1499CS#PBF FAQ
1.How can I place an order for LT1499CS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1499CS#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 LT1499CS#PBF reliable?
The price and inventory of LT1499CS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1499CS#PBF is usually 5 days.
3.What payment methods are accepted for LT1499CS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1499CS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1499CS#PBF?
LT1499CS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1499CS#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 LT1499CS#PBF?
For technical support, including LT1499CS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1499CS#PBF requirements.
6.How does Aetrix verify that LT1499CS#PBF is sourced from the original manufacturer or authorized distributors?
All LT1499CS#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 LT1499CS#PBF meets industry standards.
7.What is the process for return or replacement of LT1499CS#PBF?
All LT1499CS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1499CS#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 LT1499CS#PBF part is unused and in its original packaging.
Return procedure for LT1499CS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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