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Analog Devices Inc. LT6370AHS8E#PBF
- Part No.:
- LT6370AHS8E#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
LT6370AHS8E#PBF.pdf
- Description:
- IC INST AMP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:107
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Product details
Overview
LT6370AHS8E#PBF from Analog Devices is a precision gain-programmable instrumentation amplifier in an 8-lead SOIC (S8E) package, delivering 25µV max input offset voltage, 0.3µV/°C max drift, 94dB min DC CMRR at G=1, 3.1MHz bandwidth, and integrated RFI filtering - enabling high-fidelity bridge and thermocouple signal conditioning in industrial sensor interfaces.
For engineers reviewing the LT6370AHS8E#PBF datasheet, LT6370AHS8E#PBF pinout, LT6370AHS8E#PBF application, or LT6370AHS8E#PBF equivalent, this page provides verified DC precision specs, thermal stability data, gain-setting resistor guidance, and A-grade S8E package validation for high-reliability transducer amplification across –40°C to 125°C.
Technical Context
The LT6370AHS8E#PBF implements a laser-trimmed, three-op-amp instrumentation topology with proprietary bipolar process technology, ensuring matched input transistors (Q1/Q2), trimmed 12.1kΩ internal resistors (R1/R2), and automated on-chip testing for guaranteed drift performance. Its preamp stage transconductance scales with external RG, enabling self-adjusting bandwidth.
It features integrated EMI filtering on both inputs, REF pin with ±10ppm gain error and 20kΩ input resistance, and rail-to-rail output swing capability (±14.5V at ±15V supply). The A-grade S8E variant is characterized for superior DC specs over –40°C to 125°C, including tighter input offset voltage distribution and lower drift vs standard grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 25µV max - enables sub-100µV signal resolution without calibration drift over temperature. |
| Input Offset Drift | 0.3µV/°C max - ensures <±0.5µV total drift across full –40°C to 125°C operating range. |
| DC CMRR (G = 1) | 94dB min - rejects >180mV common-mode error at 1V differential input, critical for bridge sensors. |
| –3dB Bandwidth | 3.1MHz at G = 1 - supports fast multiplexed acquisition of multiple low-level sensor channels. |
| Supply Range | ±2.375V to ±17.5V (4.75V–35V total) - compatible with legacy ±15V and modern 5V/12V industrial rails. |
| Input Bias Current | 400pA max - minimizes voltage error across high-impedance sources like thermocouples and strain gauges. |
| Gain Programmability | G = 1 to >1000 via single external resistor RG - simplifies design scalability without changing IC footprint. |
Pinout & Package
LT6370AHS8E#PBF uses the industry-standard 8-lead plastic SOIC (S8E) package with exposed pad floating or connected to V+ per datasheet requirement. Thermal resistance θJA = 33°C/W, θJC = 5°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–RG) | Negative gain-set terminal | Connects to one end of external RG resistor; forms current path defining transconductance of preamp stage. |
| 2 (–IN) | Negative input | High-impedance differential input node; laser-trimmed for matched bias current and offset with +IN. |
| 3 (+IN) | Positive input | High-impedance differential input node; paired with –IN for 94dB CMRR and 25µV offset performance. |
| 4 (V–) | Negative supply rail | Must be bypassed to ground; supplies internal preamp and difference amplifier stages. |
| 5 (REF) | Output reference | Sets output common-mode level; 20kΩ input resistance allows direct connection to DAC or mid-supply divider. |
| 6 (OUTPUT) | Differential-to-single-ended output | Delivers amplified, referenced output; drives 2kΩ load with ±14.5V swing at ±15V supply. |
| 7 (V+) | Positive supply rail | Must be bypassed to ground; powers all internal amplifier stages and EMI filters. |
| 8 (+RG) | Positive gain-set terminal | Connects to other end of RG; completes gain-setting loop with –RG to define G = 1 + 24.2kΩ/RG. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed input offset & drift | 25µV max offset and 0.3µV/°C max drift guaranteed on A-grade S8E package via automated test. |
| Integrated RFI filtering | On-chip RC filters on +IN/–IN pins maintain accuracy in noisy industrial environments (e.g., motor drives, PLCs). |
| Self-adjusting bandwidth | Bandwidth increases with gain (3.1MHz @ G=1 → 19kHz @ G=1000), preserving settling time vs. fixed-G amps. |
| Single-resistor gain programming | G = 1 + 24.2kΩ/RG enables precise integer gains (e.g., G=100 with 243Ω ±0.1% RG) without layout changes. |
| Wide supply and temp range | Operates from 4.75V–35V total supply and –40°C to 125°C, supporting harsh industrial and automotive under-hood use. |
Applications
| Bridge Amplifier | Data Acquisition |
|---|---|
|
Use Scenario: Amplifying mV-level outputs from load cells and pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier providing differential-to-single-ended conversion with 94dB CMRR and 25µV offset. Use Value: Enables 16-bit+ resolution without software calibration, reducing system cost and improving long-term stability. |
Use Scenario: Front-end signal conditioning for multi-channel industrial DAQ modules sampling thermocouples and RTDs. IC Role / Device Role / Timing Role: High-speed, low-drift gain stage with 3.1MHz bandwidth and 5.8µs settling to 0.0015%. Use Value: Supports 100kSPS multiplexed sampling while maintaining <0.01% gain error and <±0.5µV offset drift over temperature. |
| Thermocouple Amplifier | Strain Gauge Amplifier |
|
Use Scenario: Cold-junction compensated thermocouple measurement in furnace controllers and HVAC systems. IC Role / Device Role / Timing Role: Low-bias-current (400pA max), high-input-impedance amplifier rejecting EMI from heating elements. Use Value: Eliminates external filtering and offset trimming, achieving ±0.5°C accuracy over –40°C to 125°C ambient. |
Use Scenario: Wheatstone bridge readout in structural health monitoring and weigh-scale electronics. IC Role / Device Role / Timing Role: Ultra-low-drift (0.3µV/°C) amplifier with integrated RFI filters suppressing 2.4GHz WiFi interference. Use Value: Maintains <10ppm linearity error across full temperature range, enabling Class III legal-for-trade certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8421ARZ | Higher input bias current (1nA), wider bandwidth (12MHz), but higher offset drift (1µV/°C) and no integrated RFI filter. | Better for high-speed, low-noise applications where EMI immunity is less critical than slew rate. | Select AD8421ARZ when bandwidth >10MHz is required and thermal drift can be managed via calibration. |
| INA128UA | Lower bandwidth (1.3MHz), higher offset (125µV), no A-grade option, but lower cost and wider availability. | Suitable for cost-sensitive, non-critical industrial sensors where ±1°C accuracy suffices. | Choose INA128UA for budget-constrained designs where 25µV offset and 0.3µV/°C drift are not mandatory. |
Compared with AD8421ARZ and INA128UA, the LT6370AHS8E#PBF uniquely combines A-grade 0.3µV/°C drift, integrated RFI filtering, and single-resistor programmability - making it optimal for high-stability, EMI-prone transducer interfaces demanding minimal calibration overhead.
Availability
LT6370AHS8E#PBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, precision data acquisition systems, and automotive under-hood monitoring requiring stable component supply across extended temperature ranges.
Supply support for LT6370AHS8E#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT6370 product line delivers ultra-precision instrumentation amplifiers optimized for transducer signal conditioning in harsh environments - emphasizing low drift, high CMRR, and robust EMI rejection over wide temperature ranges.
FAQ
What is the guaranteed input offset voltage specification for LT6370AHS8E#PBF?
The LT6370AHS8E#PBF is specified with a maximum input offset voltage of 25µV over the full –40°C to 125°C operating temperature range. This A-grade performance is validated on the S8E package using automated on-chip testing and laser trimming, distinguishing it from the standard LT6370HS8E#PBF which has a 125µV max limit.
Does LT6370AHS8E#PBF require external filtering for RF immunity?
No, the LT6370AHS8E#PBF integrates on-chip RFI filters on both +IN and –IN pins, maintaining DC precision in the presence of strong RF fields up to 2.4GHz. This eliminates the need for external RC networks in industrial environments with variable-frequency drives or wireless transceivers, as confirmed by EMIRR test data showing >120dB rejection at 100MHz.
How is gain set on LT6370AHS8E#PBF, and what resistor value gives G = 100?
Gain on the LT6370AHS8E#PBF is set by a single external resistor RG connected between pins 1 (–RG) and 8 (+RG), using the formula G = 1 + 24.2kΩ/RG. For G = 100, RG = 243Ω (±0.1% tolerance recommended); this value is explicitly listed in the datasheet's Table 1 and validated for <0.01% gain error at 25°C.
What is the thermal performance of LT6370AHS8E#PBF in the S8E package?
The LT6370AHS8E#PBF in the 8-lead SOIC (S8E) package has a junction-to-ambient thermal resistance (θJA) of 33°C/W and junction-to-case (θJC) of 5°C/W. Its A-grade characterization guarantees 0.3µV/°C max input offset drift over –40°C to 125°C, with typical distribution tightly clustered around ±0.2µV/°C per production lot data.
Can LT6370AHS8E#PBF operate from a single 5V supply?
Yes, the LT6370AHS8E#PBF supports total supply voltages from 4.75V to 35V, including single 5V operation. When powered from +5V and GND, the input common-mode range is V– + 2.4V to V+ – 2V (i.e., 2.4V to 3V), and output swing reaches ±1.5V into 10kΩ, as verified in the Electrical Characteristics table for VS = ±2.375V conditions.
LT6370AHS8E#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Instrumentation
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 11V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 3.1 MHz
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 9 µV
- Current - Supply:
- 2.65mA
- Current - Output / Channel:
- 55 mA
- Voltage - Supply Span (Min):
- 4.75 V
- Voltage - Supply Span (Max):
- 35 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
LT6370AHS8E#PBF FAQ
1.How can I place an order for LT6370AHS8E#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6370AHS8E#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 LT6370AHS8E#PBF reliable?
The price and inventory of LT6370AHS8E#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6370AHS8E#PBF is usually 5 days.
3.What payment methods are accepted for LT6370AHS8E#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6370AHS8E#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6370AHS8E#PBF?
LT6370AHS8E#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6370AHS8E#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 LT6370AHS8E#PBF?
For technical support, including LT6370AHS8E#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6370AHS8E#PBF requirements.
6.How does Aetrix verify that LT6370AHS8E#PBF is sourced from the original manufacturer or authorized distributors?
All LT6370AHS8E#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 LT6370AHS8E#PBF meets industry standards.
7.What is the process for return or replacement of LT6370AHS8E#PBF?
All LT6370AHS8E#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6370AHS8E#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 LT6370AHS8E#PBF part is unused and in its original packaging.
Return procedure for LT6370AHS8E#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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