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Analog Devices Inc. LTC6090HS8E#PBF
- Part No.:
- LTC6090HS8E#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
LTC6090HS8E#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:509
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Product details
Overview
LTC6090HS8E#PBF from Analog Devices (formerly Linear Technology) is a high-voltage, precision rail-to-rail output operational amplifier optimized for ±70V (140V total) supply operation. It delivers 50mA output drive, 12MHz gain-bandwidth product, 21V/µs slew rate, and picoampere input bias current (≤50pA), enabling high-impedance buffering and high-gain signal conditioning in piezo drivers and photodiode amplifiers.
For engineers reviewing the LTC6090HS8E#PBF datasheet, LTC6090HS8E#PBF pinout, LTC6090HS8E#PBF application, or LTC6090HS8E#PBF equivalent, key selection criteria include guaranteed –40°C to 125°C junction temperature operation, thermal warning flag (TFLAG) activation at 145°C, output disable (OD) control, and SOIC-8E package with exposed V– pad for thermal management.
Technical Context
The LTC6090HS8E#PBF uses a proprietary CMOS process enabling rail-to-rail output swing while maintaining low offset voltage (±1.25mV max), ultra-low 0.1Hz–10Hz noise (3.5µVP-P), and high open-loop gain (>1000 V/mV). Its internal thermal protection includes dual thresholds: TFLAG asserts at 145°C with 5°C hysteresis, and hard shutdown triggers at 175°C.
It features dedicated COM, OD, and TFLAG pins referenced to a user-defined logic ground, allowing safe interfacing with low-voltage microcontrollers. The SOIC-8E package integrates an exposed V– pad (Pin 9) soldered directly to PCB for θJC = 5°C/W, critical for dissipating up to 1.4W under full 140V/10mA load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±4.75V to ±70V (140V total); supports unbalanced split supplies like +100V/–40V without sequencing concerns. |
| Input Bias Current | ≤50pA max at ±70V; enables stable DC-coupled high-impedance sensor interfaces (e.g., photodiodes, piezoelectrics). |
| Output Drive | ±50mA continuous RMS; sustains 125VP–P sine wave into 200pF load without instability. |
| Gain-Bandwidth Product | 12MHz typical; supports closed-loop gains ≥10 with >40kHz full-power bandwidth (125VP–P). |
| Thermal Protection | TFLAG active at 145°C (5°C hysteresis); hard shutdown at 175°C; exposed V– pad reduces θJA to 33°C/W with optimal PCB copper. |
| Input Offset Drift | ±5µV/°C max; ensures <±0.7mV total drift over –40°C to 125°C operating range. |
| CMRR / PSRR | ≥130dB CMRR, ≥112dB PSRR; maintains accuracy in noisy industrial power environments. |
Pinout & Package
Package: 8-Lead Plastic SOIC with Exposed Pad (S8E). Exposed pad (Pin 9) is electrically connected to V– and must be soldered to PCB for thermal performance (θJC = 5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V– (Pin 4, Exposed Pad Pin 9) | Negative Supply Rail | Primary return path for all currents; exposed pad must be connected to V– plane for thermal dissipation and EMI reduction. |
| OD (Pin 8) | Active-Low Output Disable | Pulled up internally (2MΩ); drives output stage into high-Z state when ≤0.65V above COM, reducing quiescent current to 580µA. |
| V+ (Pin 7) | Positive Supply Rail | Accepts up to +70V; requires local 0.1µF ceramic bypass capacitor placed near pin. |
| OUT (Pin 6) | Amplifier Output | Rail-to-rail capable (V– +10mV to V+ –10mV no-load); sinks/sources 50mA; avoid forward-biasing ESD diodes beyond V–/V+ rails. |
| TFLAG (Pin 5) | Open-Drain Thermal Flag | Sinks 200µA typical when die temperature ≥145°C; used to auto-disable OD or trigger external alarms. |
| COM (Pin 1) | Logic Reference Node | Defines reference for OD/TFLAG logic levels; tie to low-voltage ground or float (rises to ~30% of mid-supply if floating). |
| –IN (Pin 2) | Inverting Input | Common-mode range: V– +3V to V+ –3V; guarded layout recommended for <1pA leakage applications. |
| +IN (Pin 3) | Noninverting Input | Same common-mode range as –IN; differential input capacitance is 5pF, requiring careful feedback network design. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers full ±70V swing into 10kΩ load, enabling direct high-voltage DAC buffering without level-shifting. |
| Integrated thermal warning & shutdown | TFLAG provides early overtemperature alert at 145°C; secondary 175°C shutdown prevents permanent damage during sustained overload. |
| Dedicated COM pin | Enables safe interface with 3.3V/5V logic by defining OD/TFLAG voltage thresholds relative to low-voltage ground-not V–. |
| Guarded input architecture | SOIC-8E layout minimizes leakage paths; combined with <50pA IB, supports femtoampere-level photodiode current measurement. |
| High-voltage stability | Stable driving 200pF capacitive loads at unity gain; GBW remains 12MHz with 10kΩ load, ensuring predictable AC response. |
Applications
| Piezo Driver | Photodiode Amplifier |
|---|---|
Use Scenario: Driving high-capacitance piezoelectric actuators in precision positioning systems requiring ±100V excitation. IC Role / Device Role / Timing Role: High-voltage, low-noise buffer amplifying DAC outputs to achieve nanometer-scale displacement resolution. Use Value: 3.5µVP-P 0.1Hz–10Hz noise and <±1.25mV offset ensure sub-micron position repeatability over temperature. | Use Scenario: Transimpedance amplification of weak photocurrents (<1nA) from scientific-grade photodiodes. IC Role / Device Role / Timing Role: Ultra-low-input-bias-current op-amp converting photocurrent to voltage with minimal dark-current error. Use Value: 50pA max IB and 11nV/√Hz noise density preserve signal integrity in low-light detection. |
| High-Voltage DAC Buffer | Optical Networking Bias Control |
Use Scenario: Buffering 16-bit DAC outputs in programmable high-voltage power supplies for test equipment. IC Role / Device Role / Timing Role: Precision voltage follower isolating DAC from load variations while delivering ±70V compliance. Use Value: 12MHz GBW and 21V/µs slew rate support fast settling (<2.5µs to 0.1%) for dynamic calibration sequences. | Use Scenario: Biasing laser diodes and avalanche photodiodes (APDs) in fiber-optic transceivers requiring stable ±60V control. IC Role / Device Role / Timing Role: Low-drift, high-PSRR amplifier regulating bias voltage despite switching noise on shared power rails. Use Value: ≥112dB PSRR and ±5µV/°C drift maintain APD gain stability across telecom temperature ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA454IDDA | Wider supply range (±100V), higher IB (200pA typ), no TFLAG/OD pins, DDA package lacks exposed pad. | Preferred for >±70V systems; unsuitable where thermal monitoring or logic-controlled shutdown is required. | Select when absolute maximum voltage exceeds ±70V and thermal flag functionality is unnecessary. |
| ADA4700-1ARMZ | Lower supply (±50V), lower IB (0.3pA typ), no thermal flag, MSOP-8 package with no exposed pad. | Better for ultra-low-leakage <1pA applications below ±50V; lacks high-voltage drive and thermal safety features. | Select for femtoampere photodiode amps where voltage range is constrained to ±50V. |
Compared with OPA454IDDA and ADA4700-1ARMZ, the LTC6090HS8E#PBF uniquely combines ±70V operation, integrated thermal flag, output disable, and SOIC-8E thermal performance-making it optimal for industrial high-voltage systems requiring functional safety and long-term stability.
Availability
LTC6090HS8E#PBF is available at Aetrix Electronics and suitable for piezo driver circuits, photodiode amplifiers, and high-voltage DAC buffer designs requiring stable component supply across extended temperature ranges.
Supply support for LTC6090HS8E#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 continues its legacy of high-performance analog ICs for precision, power, and signal-chain applications.
The LTC6090HS8E#PBF belongs to Linear's high-voltage precision op-amp family, engineered for applications demanding rail-to-rail output, picoampere input bias, and robust thermal protection in harsh industrial and test environments.
FAQ
What is the maximum supply voltage rating for the LTC6090HS8E#PBF?
The LTC6090HS8E#PBF has an absolute maximum total supply voltage of 150V (V+ to V–), with recommended operation up to ±70V (140V). Exceeding ±70V risks violating input common-mode limits and may degrade long-term reliability, even if within absolute maximum ratings.
How does the TFLAG pin function in the LTC6090HS8E#PBF?
The TFLAG pin on the LTC6090HS8E#PBF is an open-drain output that sinks 200µA typical when the die temperature reaches 145°C. It includes 5°C hysteresis, deactivating at 140°C. When tied to the OD pin, it automatically disables the output stage during thermal overload, protecting downstream circuitry.
Can the LTC6090HS8E#PBF drive capacitive loads, and what is the limit?
Yes, the LTC6090HS8E#PBF is specified to drive up to 200pF of capacitive load while maintaining stability at unity gain. For loads >100pF, adding a small series resistor (e.g., 10–50Ω) between OUT and the capacitor improves phase margin without compromising DC accuracy.
What is the purpose of the COM pin on the LTC6090HS8E#PBF?
The COM pin on the LTC6090HS8E#PBF establishes a logic reference for OD and TFLAG signals. It allows interfacing with 3.3V/5V microcontrollers by defining voltage thresholds relative to low-voltage ground-not V–-preventing latch-up and enabling safe level translation in mixed-voltage systems.
Is the LTC6090HS8E#PBF suitable for photodiode transimpedance applications?
Yes, the LTC6090HS8E#PBF is well-suited for photodiode transimpedance amplifiers due to its ≤50pA input bias current, 11nV/√Hz input voltage noise, and 5pF differential input capacitance. Its rail-to-rail output supports wide dynamic range, and the exposed V– pad ensures thermal stability during long integration periods.
LTC6090HS8E#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 21V/µs
- Gain Bandwidth Product:
- 12 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 330 µV
- Current - Supply:
- 2.8mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 9.5 V
- Voltage - Supply Span (Max):
- 140 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
LTC6090HS8E#PBF FAQ
1.How can I place an order for LTC6090HS8E#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6090HS8E#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 LTC6090HS8E#PBF reliable?
The price and inventory of LTC6090HS8E#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6090HS8E#PBF is usually 5 days.
3.What payment methods are accepted for LTC6090HS8E#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6090HS8E#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6090HS8E#PBF?
LTC6090HS8E#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6090HS8E#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 LTC6090HS8E#PBF?
For technical support, including LTC6090HS8E#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6090HS8E#PBF requirements.
6.How does Aetrix verify that LTC6090HS8E#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6090HS8E#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 LTC6090HS8E#PBF meets industry standards.
7.What is the process for return or replacement of LTC6090HS8E#PBF?
All LTC6090HS8E#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6090HS8E#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 LTC6090HS8E#PBF part is unused and in its original packaging.
Return procedure for LTC6090HS8E#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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