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Analog Devices Inc. LT1353CS#PBF
- Part No.:
- LT1353CS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1353CS#PBF.pdf
- Description:
- IC VOLTAGE FEEDBACK 4 CIRC 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:456
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Product details
Overview
LT1353CS#PBF from Analog Devices (formerly Linear Technology) is a quad, low-power, high-speed operational amplifier with 3MHz gain bandwidth, 200V/µs slew rate, and 250µA supply current per amplifier. It operates from ±2.5V to ±15V supplies, delivers ±13V output swing into 1kΩ at ±15V, and is unity-gain stable while driving any capacitive load - ideal for photodiode preamplifiers and active filter stages in portable instrumentation.
For engineers reviewing the LT1353CS#PBF datasheet, LT1353CS#PBF pinout, LT1353CS#PBF application, or LT1353CS#PBF equivalent, key selection criteria include guaranteed –40°C to +85°C operation (I-grade), C-Load™ stability with unlimited capacitive loading, input offset voltage ≤1.0mV over temperature, and SO-14 narrow-body surface-mount packaging compatible with automated assembly.
Technical Context
The LT1353CS#PBF employs a proprietary voltage-feedback topology that combines matched high-impedance inputs with current-feedback slewing behavior, enabling high slew rate without sacrificing DC precision. Its internal compensation ensures unity-gain stability and robustness against capacitive loads up to 10,000pF without external compensation.
Each of its four amplifiers features complementary NPN/PNP input stage bias cancellation, delivering low input bias current (≤100nA max at –40°C to +85°C) and low input offset current (≤50nA max), while maintaining 99dB channel separation and ≥76dB common-mode rejection at ±12V input common-mode voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.6MHz min at ±15V, ±5V - sets usable closed-loop bandwidth for gain ≥2 configurations |
| Slew Rate | 50V/µs min at ±15V, –40°C to +85°C - supports fast large-signal settling (e.g., 10V step in <1.25µs to 0.01%) |
| Input Offset Voltage | 1.0mV max at ±15V, –40°C to +85°C - enables precision DC-coupled signal conditioning without trimming |
| Supply Current per Amp | 380µA max at ±15V, –40°C to +85°C - allows battery-powered multi-channel designs with low quiescent power |
| Output Swing (RL = 1kΩ) | ±10.0V min at ±15V, –40°C to +85°C - provides rail-to-rail usable dynamic range for ±15V systems |
| Input Bias Current | 100nA max at ±15V, –40°C to +85°C - minimizes error in high-impedance sensor interfaces (e.g., photodiodes) |
| Channel Separation | 99dB min at ±15V - prevents crosstalk between adjacent channels in quad signal-path applications |
Pinout & Package
The LT1353CS#PBF is housed in a 14-lead narrow-body plastic SOIC (S package), compliant with JEDEC MS-012, with 0.150-inch body width and 1.27mm lead pitch. Thermal resistance θJA = 150°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Capable of ±13V swing into 1kΩ at ±15V; drives capacitive loads directly |
| 2 (–IN A) | Inverting input A | Differential input pair base node; withstands ±10V transient differential voltage |
| 3 (+IN A) | Non-inverting input A | Matched to –IN A for low input offset current; requires balanced source impedances for best DC accuracy |
| 4 (V+) | Positive supply rail | Accepts +2.5V to +15V; powers all four amplifiers and internal bias circuitry |
| 5 (+IN B) | Non-inverting input B | Independent input for second amplifier; electrically isolated from other channels |
| 6 (–IN B) | Inverting input B | Paired with +IN B; shares same input stage architecture and performance specs as Channel A |
| 7 (OUT B) | Amplifier B output | Identical AC/DC specs to OUT A; 99dB isolation from OUT A minimizes inter-channel coupling |
| 8 (OUT D) | Amplifier D output | Fourth output; pin 8 is not ground - critical for correct PCB layout and decoupling |
| 9 (–IN D) | Inverting input D | Input for fourth amplifier; layout symmetry recommended vs. Channels A/B/C to maintain matching |
| 10 (V–) | Negative supply rail | Accepts –2.5V to –15V; must be decoupled locally with 0.01µF–0.1µF ceramic capacitor |
| 11 (+IN C) | Non-inverting input C | Third amplifier non-inverting input; positioned to minimize trace length mismatch in multi-amp layouts |
| 12 (–IN C) | Inverting input C | Third amplifier inverting input; paired with +IN C for matched DC performance |
| 13 (OUT C) | Amplifier C output | Third output; shares same drive capability and settling specs as other outputs |
| 14 (NC) | No connect | Internal die pad; left unconnected per datasheet - must not be tied to V+, V–, or ground |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ stability | Drives unlimited capacitive loads without oscillation or peaking - eliminates need for isolation resistors in ADC driver or cable-drive applications |
| Unity-gain stable | Operates reliably at gain = 1 without external compensation - simplifies design of buffers and voltage followers |
| Low input bias current | ≤100nA max over full –40°C to +85°C range - preserves signal integrity in high-Z photodiode or piezoelectric sensor interfaces |
| Wide supply range | ±2.5V to ±15V operation - supports both low-voltage portable systems and industrial ±15V signal chains |
| Quad configuration | Four independent amplifiers in single SO-14 package - reduces board space and component count in multi-channel data acquisition |
Applications
| Photodiode Amplifier | Active Filter Stage |
|---|---|
Use Scenario: High-speed, low-noise transimpedance amplification of BPV22NF photodiode output in optical sensing. IC Role / Device Role / Timing Role: Quad op-amp configured as I-to-V converter with 10kHz high-pass loop, providing 400kHz bandwidth and 14nV/√Hz input noise. Use Value: Enables sub-microsecond light-pulse detection with <0.5LSB DAC interface error due to low VOS and IOS. | Use Scenario: 20kHz 4th-order Butterworth low-pass filtering in medical ECG front-end. IC Role / Device Role / Timing Role: Quad amplifier implementing cascaded 2nd-order sections with precise pole placement via RC networks. Use Value: Delivers monotonic roll-off and <1% passband ripple using only passive components - no trimming required. |
| Data Acquisition Buffer | Battery-Powered Instrumentation |
Use Scenario: Isolation and level-shifting of ±10V sensor signals before 16-bit SAR ADC sampling. IC Role / Device Role / Timing Role: Unity-gain buffer with ±13V output swing into 1kΩ, driven from ±15V rails. Use Value: Maintains signal fidelity across full input range while rejecting CM noise via 76dB CMRR at ±12V common-mode. | Use Scenario: Multi-channel signal conditioning in handheld gas analyzer with 200-hour battery life. IC Role / Device Role / Timing Role: Four independent low-power amps (380µA each) operating from ±5V rails. Use Value: Achieves 3.4V output swing into 500Ω at ±5V while consuming <1.6mA total - extends battery runtime without compromising bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1353CS8#PBF | Same die, but in 14-lead SOIC with different marking and tape/reel packaging - identical electrical specs and pinout | No functional difference; used interchangeably where packaging logistics differ | Select LT1353CS#PBF for standard reel delivery; LT1353CS8#PBF for alternate packaging requirements |
| OP482ARZ | Higher supply current (1.2mA/amp), higher GBW (10MHz), but not C-Load™ stable - requires careful capacitive load management | Preferred for wideband (>5MHz) applications where load is purely resistive or tightly controlled | Choose OP482ARZ only when >3MHz bandwidth is mandatory and capacitive loading is <100pF |
Compared with LT1353CS#PBF, LT1353CS8#PBF offers identical performance in functionally equivalent packaging, while OP482ARZ trades guaranteed capacitive-load stability for higher speed - making LT1353CS#PBF the preferred choice for robust, low-power, multi-channel analog signal paths with uncertain or variable load conditions.
Availability
LT1353CS#PBF is available at Aetrix Electronics and suitable for photodiode amplifiers, active filter stages, and battery-powered instrumentation requiring stable component supply across industrial temperature ranges.
Supply support for LT1353CS#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT1353CS#PBF belongs to Linear Technology's C-Load™ op-amp family, designed specifically for precision, low-power, high-speed signal conditioning in space-constrained and thermally sensitive applications where capacitive loading is unavoidable.
FAQ
What is the maximum operating temperature range guaranteed for LT1353CS#PBF?
The LT1353CS#PBF is an I-grade device, guaranteed to meet all specifications over the full industrial temperature range of –40°C to +85°C. Unlike the C-grade version, it undergoes 100% testing across this range, including input offset voltage, slew rate, and output swing - ensuring reliability in demanding environments like factory automation and outdoor instrumentation.
Does LT1353CS#PBF require external compensation for capacitive loads?
No, the LT1353CS#PBF does not require external compensation for any capacitive load. Its patented C-Load™ architecture provides inherent stability up to 10,000pF, as verified in the datasheet's "Capacitive Load Handling" graph (G30) and transient response figures (G31–G36). This eliminates series isolation resistors in ADC drivers, cable interfaces, and piezoelectric sensor circuits.
What is the minimum supply voltage for LT1353CS#PBF to operate within specification?
The LT1353CS#PBF is fully specified down to ±2.5V total supply (i.e., +2.5V/–2.5V), with key parameters including input offset voltage (≤1.2mV), slew rate (≥15V/µs), and output swing (±1.1V into 5kΩ) guaranteed at this rail. This enables use in low-voltage portable systems where power efficiency and headroom are critical.
How does the input stage architecture of LT1353CS#PBF reduce input bias current?
The LT1353CS#PBF uses a complementary NPN/PNP input pair whose base currents oppose each other, achieving first-order bias current cancellation. This results in typical input bias current of 20nA and a maximum of 100nA over temperature - significantly lower than conventional bipolar op-amps - preserving accuracy in high-impedance sensor interfaces like photodiodes and pH electrodes.
Can LT1353CS#PBF be used as a comparator?
No, the LT1353CS#PBF is not intended for open-loop comparator use. Sustained differential input voltages >±10V cause excessive supply current and thermal stress, risking damage. The datasheet explicitly warns against use as comparators or peak detectors. For such functions, dedicated comparators like LTC1540 or LT1719 are recommended instead of LT1353CS#PBF.
LT1353CS#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:
- Voltage Feedback
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 200V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 250µA (x4 Channels)
- Current - Output / Channel:
- 14 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
LT1353CS#PBF FAQ
1.How can I place an order for LT1353CS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1353CS#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 LT1353CS#PBF reliable?
The price and inventory of LT1353CS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1353CS#PBF is usually 5 days.
3.What payment methods are accepted for LT1353CS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1353CS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1353CS#PBF?
LT1353CS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1353CS#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 LT1353CS#PBF?
For technical support, including LT1353CS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1353CS#PBF requirements.
6.How does Aetrix verify that LT1353CS#PBF is sourced from the original manufacturer or authorized distributors?
All LT1353CS#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 LT1353CS#PBF meets industry standards.
7.What is the process for return or replacement of LT1353CS#PBF?
All LT1353CS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1353CS#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 LT1353CS#PBF part is unused and in its original packaging.
Return procedure for LT1353CS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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