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Analog Devices Inc. LT6020HDD#PBF
- Part No.:
- LT6020HDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6020HDD#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,022
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Product details
Overview
LT6020HDD#PBF from Analog Devices (formerly Linear Technology) is a dual micropower, precision rail-to-rail output operational amplifier in an 8-lead 3mm × 3mm DFN package. It delivers 5V/µs slew rate, 400kHz gain-bandwidth product, ≤100µA supply current per amplifier, ≤30µV max input offset voltage, and operates from 3V to 30V supplies across –40°C to 125°C. It is optimized for multiplexed ADC front-ends and low-power portable instrumentation.
For engineers reviewing the LT6020HDD#PBF datasheet, LT6020HDD#PBF pinout, LT6020HDD#PBF application, or LT6020HDD#PBF equivalent, key selection criteria include guaranteed H-grade temperature performance, rail-to-rail output swing within 100mV of rails at 125°C, low 0.5µV/°C offset drift, high dynamic input impedance during 5V input transients, and absence of output phase inversion under overdrive.
Technical Context
The LT6020HDD#PBF employs a proprietary bipolar input stage combining NPN and PNP differential pairs to maintain high input impedance during large input voltage steps up to ±5V-critical for multiplexer channel switching. Its enhanced slew rate architecture achieves 5V/µs without increasing quiescent current beyond 100µA per amplifier.
It features no output phase inversion when inputs exceed common-mode limits, supports rail-to-rail output swing (VOH ≤ 190mV, VOL ≤ 300mV at 125°C into 10kΩ), and maintains 120dB CMRR and PSRR across its full 3V–30V supply range-enabling stable operation in noisy industrial and battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 5V/µs (AV = 1, 10V step); enables fast settling in MUX-driven data acquisition |
| Supply Current | 100µA/amplifier max at –40°C to 125°C; supports ultra-low-power portable designs |
| Input Offset Voltage | 30µV max (MS8 package, H-grade); ensures <1 LSB error in 18-bit DAC buffer applications |
| Offset Drift | 0.5µV/°C max (MS8 package); minimizes thermal drift in wide-temperature industrial sensors |
| Gain-Bandwidth | 400kHz; sufficient for anti-aliasing and post-DAC filtering up to ~50kHz |
| Rail-to-Rail Output | VOH ≤ 190mV, VOL ≤ 300mV at 125°C into 10kΩ; preserves full dynamic range near supply rails |
| Common-Mode Range | V– + 1.2V to V+ – 1.4V; allows use in noninverting gain ≥2 without rail-to-rail inputs |
Pinout & Package
LT6020HDD#PBF uses an 8-lead (3mm × 3mm) plastic DFN package with exposed pad connected to V–. Pin 1 is marked by top-side dot; exposed pad is solder-plated and may be connected to V– on PCB for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A | Amplifier A output | Drives load directly; rail-to-rail swing; high-impedance in shutdown (LT6020-1 only) |
| –IN A | Inverting input of Amp A | Accepts differential signals; protected by 5.5V Zener diodes for >5V transient immunity |
| +IN A | Noninverting input of Amp A | High-impedance node; bias current ±1nA typical; sensitive to thermocouple errors |
| V– | Negative power supply | Reference for both amplifiers; exposed pad internally tied to this pin |
| V+ | Positive power supply | Supports 3V–30V operation; requires local bypass capacitance |
| OUT B | Amplifier B output | Independent output; identical specs to OUT A; enables dual-channel signal conditioning |
| –IN B | Inverting input of Amp B | Electrically isolated from Amp A inputs; shares same V+/V– rails |
| +IN B | Noninverting input of Amp B | Same input structure as +IN A; enables independent dual-sensor buffering |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced slew rate topology | Delivers 5V/µs at 100µA supply current-3× faster than typical micropower op-amps without sacrificing precision |
| High-dynamic-input-impedance input stage | Zener-protected inputs sustain 5V transients without diode conduction, eliminating settling delay in multiplexer applications |
| No output phase inversion | Guaranteed stable polarity even when inputs exceed VICM, preventing latch-up in overdriven sensor interfaces |
| Low 0.5µV/°C offset drift (MS8) | Reduces calibration frequency in field-deployed equipment operating across –40°C to 125°C |
| Rail-to-rail output with low saturation | VOL ≤ 300mV and VOH ≤ 190mV at 125°C enables full-scale utilization of 16-bit DAC outputs |
Applications
| 16-Bit DAC Amplifier | Multiplexed ADC Front-End |
|---|---|
Use Scenario: Buffering and level-shifting output of a 16-bit DAC (e.g., LTC2642) with ±10V swing in precision test equipment. IC Role / Device Role / Timing Role: Precision voltage follower and gain stage ensuring monotonicity and minimal code-dependent offset. Use Value: 30µV max offset and 0.5µV/°C drift preserve <±0.5 LSB accuracy over temperature without recalibration. | Use Scenario: Driving successive-approximation ADC inputs after analog multiplexer switching in data loggers. IC Role / Device Role / Timing Role: High-impedance, fast-settling buffer that absorbs 5V channel-switch transients without injecting recovery current into the MUX. Use Value: 5V/µs slew rate and Zener-protected inputs achieve 0.0015% settling in <14µs-enabling 70ksps sampling with 18-bit resolution. |
| Low-Power Wireless Sensor Node | Precision Industrial Signal Conditioning |
Use Scenario: Amplifying thermocouple or RTD signals in battery-powered mesh nodes with duty-cycled operation. IC Role / Device Role / Timing Role: Low-quiescent-current signal conditioner active only during measurement bursts. Use Value: 100µA per amplifier enables >5-year battery life in 1-second wake/sleep cycles; rail-to-rail output maximizes ADC utilization. | Use Scenario: Isolating and scaling 4–20mA loop signals in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision I/V converter and filter driver operating from wide 3V–30V supply with high PSRR. Use Value: 120dB PSRR and 120dB CMRR reject power supply noise and common-mode interference in electrically noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture; 0.02µV/°C drift vs. LT6020HDD#PBF's 0.5µV/°C; higher 17µA supply current; 350kHz GBW | Better long-term drift stability but slower settling and higher power; unsuitable for >50kHz MUX applications | Select OPA2333AIDR only when microvolt-level drift over years matters more than speed or power |
| AD8638ARZ-REEL7 | Zero-drift; 0.03µV/°C drift; 125µA supply current; 1.2MHz GBW; SOIC-8 package only | Higher bandwidth and lower drift, but larger SOIC-8 footprint and 25% higher supply current limit battery life | Choose AD8638ARZ-REEL7 for space-tolerant designs needing sub-µV drift and >100kHz closed-loop bandwidth |
Compared with OPA2333AIDR and AD8638ARZ-REEL7, LT6020HDD#PBF uniquely balances 5V/µs slew rate, 100µA quiescent current, and H-grade 125°C operation in a 3mm × 3mm DFN-making it optimal for compact, fast, low-power industrial and portable instrumentation where zero-drift isn't mandatory.
Availability
LT6020HDD#PBF is available at Aetrix Electronics and suitable for precision signal processing, multiplexed ADC front-ends, and low-power wireless sensor networks requiring stable component supply across extended temperature ranges.
Supply support for LT6020HDD#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 integrity applications.
The LT6020 family was designed specifically for micropower precision amplification in multiplexed data acquisition and portable instrumentation-prioritizing slew rate, input transient immunity, and wide-temperature stability over zero-drift or ultra-low-noise.
FAQ
What is the maximum operating temperature for LT6020HDD#PBF?
The LT6020HDD#PBF is rated for continuous operation from –40°C to +125°C ambient temperature. This H-grade specification is confirmed in the Order Information table and Electrical Characteristics sections, where parameters like input offset voltage (≤100µV), offset drift (≤0.8µV/°C), and output swing (VOL ≤ 300mV, VOH ≤ 190mV) are explicitly guaranteed across this full range. The DFN package's θJA = 43°C/W supports reliable thermal performance at 125°C.
Does LT6020HDD#PBF have shutdown capability?
No, LT6020HDD#PBF does not include shutdown functionality. Shutdown is exclusive to the LT6020-1 variants (e.g., LT6020HDD-1#PBF), which feature EN and DGND pins. The LT6020HDD#PBF is the standard dual amplifier version-pin-compatible with LT6020IDD#PBF but rated for the extended H-grade temperature range. Its supply current remains at ~100µA per amplifier regardless of signal activity.
What is the input common-mode voltage range for LT6020HDD#PBF?
The input common-mode voltage range for LT6020HDD#PBF is specified as V– + 1.2V to V+ – 1.4V across the full –40°C to 125°C range. This is not rail-to-rail input, but enables robust operation in noninverting configurations with gain ≥2 and inverting configurations where inputs are held at a fixed bias (e.g., VREF). Exceeding this range reduces open-loop gain and increases input bias current, but does not cause phase inversion.
Can LT6020HDD#PBF drive capacitive loads?
Yes, LT6020HDD#PBF can drive up to 100pF capacitive loads in unity-gain configuration, as verified in Typical Performance Characteristics (Figure G15). Stability improves with higher closed-loop gain; adding a small series resistor (e.g., 10–50Ω) between output and load further extends usable capacitance. For loads >100pF, external compensation (e.g., feedback capacitor) or gain adjustment is recommended to maintain phase margin.
Is LT6020HDD#PBF pin-compatible with other LT6020 package variants?
Yes, LT6020HDD#PBF (8-lead DFN) shares identical pinout with LT6020IMS8#PBF (8-lead MSOP) and LT6020IDD#PBF (8-lead DFN, I-grade). All three use the same 8-pin arrangement: OUT A, –IN A, +IN A, V–, V+, OUT B, –IN B, +IN B. This allows direct PCB footprint reuse across temperature grades and package types-only thermal and layout considerations (e.g., DFN exposed pad connection) differ.
LT6020HDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5V/µs
- Gain Bandwidth Product:
- 400 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 90µA (x2 Channels)
- Current - Output / Channel:
- 11 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LT6020HDD#PBF FAQ
1.How can I place an order for LT6020HDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6020HDD#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 LT6020HDD#PBF reliable?
The price and inventory of LT6020HDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6020HDD#PBF is usually 5 days.
3.What payment methods are accepted for LT6020HDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6020HDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6020HDD#PBF?
LT6020HDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6020HDD#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 LT6020HDD#PBF?
For technical support, including LT6020HDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6020HDD#PBF requirements.
6.How does Aetrix verify that LT6020HDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT6020HDD#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 LT6020HDD#PBF meets industry standards.
7.What is the process for return or replacement of LT6020HDD#PBF?
All LT6020HDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6020HDD#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 LT6020HDD#PBF part is unused and in its original packaging.
Return procedure for LT6020HDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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