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Analog Devices Inc. LT6201CS8#PBF
- Part No.:
- LT6201CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6201CS8#PBF.pdf
- Description:
- IC BUFFER 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:311
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Product details
Overview
LT6201CS8#PBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input/output, ultralow-noise operational amplifier in an 8-pin SO package. It delivers 0.95nV/√Hz input voltage noise at 100kHz, 165MHz gain bandwidth at unity gain, and 50V/µs slew rate, operating from 2.5V to 12.6V supplies. It is used in precision low-noise signal conditioning for photodiode amplifiers and high-resolution ADC drivers.
For engineers reviewing the LT6201CS8#PBF datasheet, LT6201CS8#PBF pinout, LT6201CS8#PBF application, or LT6201CS8#PBF equivalent, key selection criteria include its dual-channel rail-to-rail swing, shutdown capability, thermal protection, and guaranteed performance over 0°C to 70°C - critical for compact, low-voltage, high-fidelity analog front-ends.
Technical Context
The LT6201CS8#PBF implements a dual high-speed voltage-feedback architecture with independent shutdown control per channel. Its input stage supports common-mode voltage from V– to V+, enabling true rail-to-rail operation across single-supply configurations. The amplifier maintains unity-gain stability without external compensation.
It integrates thermal shutdown and features matched internal components for channel-to-channel tracking of offset, CMRR, and PSRR. The SO-8 package uses standard dual op amp pinout (pin 1: OUT A, pin 2: –IN A, pin 3: +IN A, pin 4: V–, pin 5: NC, pin 6: V+, pin 7: OUT B, pin 8: –IN B, pin 3: +IN B), with pin 5 unconnected and not internally bonded.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Voltage Density | 0.95nV/√Hz at 100kHz - enables sub-μV signal amplification in transimpedance stages |
| Gain Bandwidth Product | 165MHz at AV = 1 - supports wideband active filtering and fast-settling buffer applications |
| Slew Rate | 50V/µs - ensures distortion-free reproduction of ≥3MHz full-scale signals into 1kΩ loads |
| Input Common-Mode Range | V– to V+ - eliminates level-shifting circuitry in single-supply sensor interfaces |
| Output Swing | Rail-to-rail (≤150mV from rails at 20mA) - maximizes dynamic range in 3V/5V systems |
| Supply Range | 2.5V to 12.6V - supports battery-powered and industrial supply rails without regulation |
| Shutdown Current | 1.35mA typical per channel - reduces idle power by >93% versus active mode (22mA) |
Pinout & Package
LT6201CS8#PBF is housed in an 8-lead plastic SO (Small Outline) package, 0°C to 70°C temperature grade, with standard dual op amp pinout and pin 5 (NC) not internally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±60mA with rail-to-rail swing |
| 2 | –IN A | Inverting input A - high-impedance node (0.57MΩ common-mode) for feedback networks |
| 3 | +IN A | Non-inverting input A - accepts signals from V– to V+ without clamping |
| 4 | V– | Negative supply - also serves as thermal and ESD reference plane |
| 5 | NC | No connect - no internal bond; must be left floating or grounded per layout best practice |
| 6 | V+ | Positive supply - supports up to 12.6V total supply differential |
| 7 | OUT B | Amplifier B output - electrically identical to pin 1, fully independent |
| 8 | –IN B | Inverting input B - matched to pin 2 for differential pair applications |
| 3 | +IN B | Non-inverting input B - pin 3 reused for second channel per SO-8 dual op amp convention |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full utilization of 3V/5V supply headroom without external biasing networks |
| 0.95nV/√Hz noise | Reduces integrated noise floor in 10kHz–1MHz bandwidths by >3× vs legacy 2.5nV/√Hz op amps |
| Independent shutdown | Allows selective channel disable to cut quiescent current while preserving active channel integrity |
| Thermal shutdown | Protects against sustained short-circuit or overload conditions without external circuitry |
| Channel matching | 0.2mV max input offset match ensures <0.01% gain error in instrumentation amplifier configurations |
Applications
| Photodiode Transimpedance Amplifier | Low-Noise ADC Driver |
|---|---|
Use Scenario: Amplifying weak current from a silicon photodiode in optical sensing or medical pulse oximetry. IC Role / Device Role / Timing Role: Dual-channel LT6201CS8#PBF serves as transimpedance amplifier (TIA) for primary signal path and reference channel, rejecting common-mode light noise. Use Value: 0.95nV/√Hz noise and rail-to-rail output swing preserve SNR in 100kΩ–10MΩ feedback configurations, enabling detection of sub-picoamp photocurrents. | Use Scenario: Driving the input of a 16-bit SAR ADC in a portable data acquisition system powered from a 3.3V LDO. IC Role / Device Role / Timing Role: Buffer and level-shift amplifier ensuring full-scale ADC input compliance with minimal settling time and distortion. Use Value: 165MHz GBW and 50V/µs slew rate achieve <165ns 0.1% settling for 2V step inputs, preventing conversion errors due to incomplete settling. |
| Rail-to-Rail Sensor Interface | Active Filter Stage |
Use Scenario: Conditioning output from a MEMS accelerometer with ±2.5V full-scale range in a 5V single-supply system. IC Role / Device Role / Timing Role: Signal conditioner providing gain, offset correction, and drive capability directly to downstream signal chain. Use Value: Input common-mode range spanning V– to V+ eliminates need for input bias resistors or level shifters, reducing component count and board area. | Use Scenario: Implementing a 4th-order Butterworth low-pass filter for anti-aliasing before a high-speed ADC in test equipment. IC Role / Device Role / Timing Role: Dual op amp configured as two 2nd-order Sallen-Key stages sharing one LT6201CS8#PBF. Use Value: Unity-gain stability and 165MHz GBW support filter corner frequencies up to 20MHz with <0.1dB passband ripple and monotonic phase response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4898-2ARMZ | Lower 1.1nV/√Hz noise at 10kHz but higher 3.5mA supply current; no shutdown pin | Preferred for ultra-low-distortion video or RF IF stages where power is secondary to noise floor | Select ADA4898-2ARMZ when lowest THD (<–100dB) at 1MHz is required and shutdown is unnecessary |
| OPA211AIDR | Higher 1.1nV/√Hz noise at 1kHz, lower 45MHz GBW, no rail-to-rail output (1.2V headroom) | Better suited for precision DC-coupled instrumentation where bandwidth <10MHz suffices | Choose OPA211AIDR for high-accuracy, low-drift applications requiring <0.1µV/°C drift and no AC performance demands |
Compared with ADA4898-2ARMZ and OPA211AIDR, the LT6201CS8#PBF uniquely balances ultralow noise, rail-to-rail output, integrated shutdown, and 165MHz bandwidth in a cost-effective SO-8 package - making it optimal for space-constrained, battery-sensitive, wideband analog front-ends.
Availability
LT6201CS8#PBF is available at Aetrix Electronics and suitable for photodiode transimpedance amplifiers, precision ADC drivers, and rail-to-rail sensor interfaces requiring stable component supply across industrial and medical design cycles.
Supply support for LT6201CS8#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 its high-performance analog portfolio, emphasizing precision, speed, and power efficiency for demanding signal chain applications.
The LT6201CS8#PBF belongs to the LT6200/LT6201 family designed specifically for low-noise, high-speed signal conditioning in resource-constrained systems - targeting applications where noise, bandwidth, and supply flexibility cannot be compromised.
FAQ
What is the maximum supply voltage rating for LT6201CS8#PBF?
The absolute maximum total supply voltage (V+ to V–) for LT6201CS8#PBF is 12.6V, as specified in the Absolute Maximum Ratings table. Operation beyond this voltage risks permanent damage. The device is characterized and guaranteed over 2.5V to 12.6V, with full specifications provided at 3V, 5V, and ±5V supplies. Thermal derating applies above 85°C ambient.
Does LT6201CS8#PBF support true rail-to-rail input and output operation?
Yes, LT6201CS8#PBF supports true rail-to-rail input common-mode range (V– to V+) and rail-to-rail output swing (within 150mV of each rail at 20mA load). This allows direct interfacing with sensors and ADCs in single-supply systems without external level-shifting circuitry, preserving dynamic range and simplifying design.
What is the function of pin 5 (NC) on the LT6201CS8#PBF SO-8 package?
Pin 5 on LT6201CS8#PBF is designated NC (No Connect) and is not internally bonded. It must remain unconnected in the PCB layout. While some designs ground NC pins for mechanical stability or EMI reduction, Linear Technology's datasheet explicitly states pin 5 has no internal connection and grounding is optional - not required for functionality or reliability.
How does the shutdown feature operate on LT6201CS8#PBF?
The LT6201CS8#PBF does not include a dedicated SHDN pin - that feature is present only on the single-amplifier LT6200 variants (e.g., LT6200CS8#PBF). The LT6201CS8#PBF is a dual op amp without integrated shutdown; both channels operate continuously when powered. For power-gated dual-channel operation, external FET switching or supply enable control is required.
What is the guaranteed operating temperature range for LT6201CS8#PBF?
The LT6201CS8#PBF is specified and guaranteed over 0°C to 70°C (Commercial grade). While the device is characterized and expected to function across –40°C to 85°C, only the C-grade (LT6201CS8#PBF) parts are tested and warranted for performance within the 0°C to 70°C range. For extended temperature operation, the LT6201IS8#PBF (Industrial grade) is recommended.
LT6201CS8#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:
- Buffer
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 50V/µs
- Gain Bandwidth Product:
- 165 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 8 µA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 20mA (x2 Channels)
- Current - Output / Channel:
- 90 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT6201CS8#PBF FAQ
1.How can I place an order for LT6201CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6201CS8#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 LT6201CS8#PBF reliable?
The price and inventory of LT6201CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6201CS8#PBF is usually 5 days.
3.What payment methods are accepted for LT6201CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6201CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6201CS8#PBF?
LT6201CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6201CS8#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 LT6201CS8#PBF?
For technical support, including LT6201CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6201CS8#PBF requirements.
6.How does Aetrix verify that LT6201CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT6201CS8#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 LT6201CS8#PBF meets industry standards.
7.What is the process for return or replacement of LT6201CS8#PBF?
All LT6201CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6201CS8#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 LT6201CS8#PBF part is unused and in its original packaging.
Return procedure for LT6201CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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