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Analog Devices Inc. LTC6090HFE#PBF
- Part No.:
- LTC6090HFE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
LTC6090HFE#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:131
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Product details
Overview
LTC6090HFE#PBF from Analog Devices (acquired Linear Technology) is a high-voltage, precision CMOS rail-to-rail output operational amplifier rated for ±70V (140V total supply), featuring 50pA max input bias current, 1.25mV max offset voltage, 12MHz gain-bandwidth product, and thermal warning flag (TFLAG) output. It serves as a high-impedance buffer or high-gain amplifier in photodiode sensing, piezo actuation, and high-voltage DAC output stages.
For engineers reviewing the LTC6090HFE#PBF datasheet, LTC6090HFE#PBF pinout, LTC6090HFE#PBF application, or LTC6090HFE#PBF equivalent, key selection criteria include guaranteed –40°C to 125°C operation, TSSOP-16E thermally enhanced package with guard pins, output disable (OD) control, and compatibility with ±4.75V to ±70V supplies - critical for high-voltage industrial and test equipment designs.
Technical Context
The LTC6090HFE#PBF implements a proprietary high-voltage CMOS input stage with picoampere bias current and integrated thermal protection. Its rail-to-rail output stage delivers ±68V swing into 10kΩ load while maintaining 130dB CMRR and 112dB PSRR across full supply range.
It features dual-level thermal protection: TFLAG activates at 145°C with 5°C hysteresis, and hard thermal shutdown triggers at 175°C. The OD pin enables active low output disable with 2MΩ internal pull-up, reducing quiescent current to ~580µA when asserted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±4.75V to ±70V (140V total); supports unbalanced split supplies and single-ended high-side configurations. |
| Input Bias Current | 50pA maximum at ±70V; enables ultra-high-impedance sensor interfacing without significant DC error. |
| Offset Voltage | 1.25mV maximum; ensures <±125µV error in 100× gain stages over temperature. |
| Gain-Bandwidth Product | 12MHz; supports stable closed-loop gains up to 100 at >100kHz signal bandwidth. |
| Slew Rate | 21V/µs; enables 125VP–P full-power output at ≥40kHz without distortion. |
| Output Drive | ±50mA continuous sink/source; drives capacitive loads up to 200pF while maintaining stability. |
| Thermal Range | –40°C to +125°C junction; qualified for harsh industrial environments with no derating required. |
Pinout & Package
Package: 16-lead plastic TSSOP with exposed pad (Pin 17 = V–), θJC = 10°C/W. Exposed pad must be soldered to PCB ground plane for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (COM) | Common reference node | Provides logic-level interface reference for OD and TFLAG; floats to ~30% of mid-supply if unconnected. |
| Pins 2,3,6,7,10,11,13,15 (GUARD) | Guard ring terminals | Enable PCB guard rings around high-impedance inputs to suppress leakage and improve CMRR. |
| Pin 4 (–IN) | Inverting input | CM range: V– +3V to V+ –3V; protected by back-to-back diodes and Zeners up to ±12V differential. |
| Pin 5 (+IN) | Noninverting input | Same CM range and protection as –IN; used for unity-gain buffers and precision instrumentation. |
| Pin 8 (V–) | Negative supply | Must connect to system V–; exposed pad (Pin 17) is electrically tied to this pin. |
| Pins 9,17 (TFLAG) | Open-drain thermal flag | Sinks 200µA when die temp ≥145°C; requires external pull-up for logic-level signaling. |
| Pin 12 (OUT) | Amplifier output | Rail-to-rail stage capable of ±68V swing; avoid forward-biasing ESD diodes beyond V–/V+ rails. |
| Pin 14 (V+) | Positive supply | Accepts up to +70V; bypass with 0.1µF ceramic capacitor placed adjacent to pin. |
| Pin 16 (OD) | Active-low output disable | Pulled high internally via 2MΩ; asserts when ≤COM +0.65V, disabling output stage only. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers ±68V swing into 10kΩ load at ±70V supply - essential for maximizing dynamic range in HV systems. |
| Integrated thermal warning (TFLAG) | Open-drain flag activates at 145°C with 5°C hysteresis, enabling predictive thermal management before shutdown. |
| Output disable (OD) control | Reduces output-stage current to zero while preserving input bias and offset stability - ideal for power sequencing. |
| Guard pin architecture | Eight dedicated guard pins support PCB guard rings that reduce input leakage and improve noise immunity in >100MΩ applications. |
| High PSRR/CMRR | 112dB PSRR and 130dB CMRR maintained across full ±4.75V to ±70V supply range - critical for precision HV measurement. |
Applications
| Photodiode Amplifier | Piezo Driver |
|---|---|
Use Scenario: Amplifying low-current signals from large-area photodiodes in optical spectrometers or laser power monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and high open-loop gain to preserve SNR. Use Value: 50pA max input bias avoids signal corruption; 3.5µVP–P (0.1–10Hz) noise enables sub-picoamp resolution. | Use Scenario: Driving high-capacitance piezoelectric actuators in nanopositioning stages or ultrasonic transducers. IC Role / Device Role / Timing Role: High-slew-rate, high-voltage buffer delivering fast, precise displacement control waveforms. Use Value: 21V/µs slew rate and ±50mA drive enable 100kHz triangle-wave generation at ±60V amplitude. |
| High-Voltage DAC Buffer | ATE Power Supply Control |
Use Scenario: Buffering 16-bit DAC outputs in programmable HV power supplies for semiconductor test systems. IC Role / Device Role / Timing Role: Precision unity-gain follower isolating DAC from load variations while extending voltage range to ±70V. Use Value: 1.25mV max offset and ±5µV/°C drift ensure <0.01% full-scale error over temperature and time. | Use Scenario: Regulating and monitoring output voltage/current in automated test equipment power modules. IC Role / Device Role / Timing Role: High-common-mode sensing amplifier feeding feedback loop of HV linear regulators. Use Value: 130dB CMRR rejects noise from switching pre-regulators; TFLAG integration enables real-time thermal margin reporting. |
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 |
|---|---|---|---|
| LT1492HS8#PBF | Lower supply (±40V), lower GBW (3.5MHz), no TFLAG or OD pin, SO-8 only | Not suitable for >±40V systems; lacks thermal monitoring and output disable functionality | Select only if operating below ±40V and thermal safety is managed externally. |
| OPA454AIDDA | Higher supply (±50V), higher IB (2nA), no guard pins, SO-8 only, no TFLAG | Insufficient for photodiode or piezo apps requiring pA bias; lacks thermal flag and guard architecture | Prefer LTC6090HFE#PBF where pA input current, thermal awareness, or guard-ring layout is required. |
Compared with LT1492HS8#PBF and OPA454AIDDA, the LTC6090HFE#PBF uniquely combines ±70V operation, picoampere input bias, integrated thermal flag, output disable, and TSSOP guard pins - making it the only option qualified for precision, high-reliability, high-voltage industrial instrumentation.
Availability
LTC6090HFE#PBF is available at Aetrix Electronics and suitable for photodiode amplification, piezo actuation, high-voltage DAC buffering, ATE power regulation, and optical networking requiring stable component supply across extended temperature ranges.
Supply support for LTC6090HFE#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 LTC6090HFE#PBF belongs to ADI's legacy Linear Technology high-voltage precision op amp family, engineered specifically for applications demanding wide supply range, ultra-low input current, and robust thermal management in harsh environments.
FAQ
What is the maximum supply voltage rating for the LTC6090HFE#PBF?
The LTC6090HFE#PBF supports a total supply voltage of up to 150V absolute maximum (V+ to V–), with recommended operation from ±4.75V to ±70V (140V). Operation beyond ±70V reduces safe operating area margins and may trigger thermal protection under load.
Does the LTC6090HFE#PBF require external compensation for unity-gain stability?
Yes - the LTC6090HFE#PBF is unity-gain stable. Unlike the LTC6090-5 variant (stable only at noise gain ≥5), the LTC6090HFE#PBF can be configured in standard non-inverting or inverting unity-gain buffers without external compensation components.
How does the TFLAG pin function on the LTC6090HFE#PBF?
The TFLAG pin on the LTC6090HFE#PBF is an open-drain output that sinks ~200µA when the die temperature reaches 145°C. It remains active until temperature falls to 140°C (5°C hysteresis), providing early thermal warning before hard shutdown at 175°C.
Can the LTC6090HFE#PBF drive capacitive loads, and what is the limit?
Yes - the LTC6090HFE#PBF is specified to drive up to 200pF of capacitive load while maintaining stability. For loads >100pF, consider adding a small series resistor (e.g., 10–50Ω) between OUT and the load to isolate capacitance from the feedback node.
What is the purpose of the COM pin on the LTC6090HFE#PBF?
The COM pin on the LTC6090HFE#PBF establishes a common reference for OD and TFLAG logic-level interfacing. When tied to low-voltage ground, it enables safe connection to microcontrollers or FPGAs; if left floating, it rises to ~30% of mid-supply due to internal resistive divider.
LTC6090HFE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm 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:
- 16-TSSOP-EP
LTC6090HFE#PBF FAQ
1.How can I place an order for LTC6090HFE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6090HFE#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 LTC6090HFE#PBF reliable?
The price and inventory of LTC6090HFE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6090HFE#PBF is usually 5 days.
3.What payment methods are accepted for LTC6090HFE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6090HFE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6090HFE#PBF?
LTC6090HFE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6090HFE#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 LTC6090HFE#PBF?
For technical support, including LTC6090HFE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6090HFE#PBF requirements.
6.How does Aetrix verify that LTC6090HFE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6090HFE#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 LTC6090HFE#PBF meets industry standards.
7.What is the process for return or replacement of LTC6090HFE#PBF?
All LTC6090HFE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6090HFE#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 LTC6090HFE#PBF part is unused and in its original packaging.
Return procedure for LTC6090HFE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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