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Analog Devices Inc. LT6370HMS8#TRPBF
- Part No.:
- LT6370HMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT6370HMS8#TRPBF.pdf
- Description:
- IC INST AMP 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,993
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Product details
Overview
LT6370HMS8#TRPBF from Analog Devices is a high-precision, gain-programmable instrumentation amplifier in an 8-pin MSOP package, delivering 25µV max input offset voltage, 0.3µV/°C drift, 94dB CMRR at G=1, and 3.1MHz bandwidth. It enables accurate low-level signal conditioning in bridge and thermocouple interfaces across –40°C to 125°C.
For engineers reviewing the LT6370HMS8#TRPBF datasheet, LT6370HMS8#TRPBF pinout, LT6370HMS8#TRPBF application, or LT6370HMS8#TRPBF equivalent, this page provides verified DC precision specs, thermal stability data, EMI-filtered input architecture, and real-world transducer interface guidance - all confirmed for the H-grade MSOP variant.
Technical Context
The LT6370HMS8#TRPBF implements a laser-trimmed, three-op-amp instrumentation topology with proprietary bipolar process technology. Its preamp stage uses matched Q1/Q2 transistors and trimmed 12.1kΩ resistors (R1/R2) to achieve 0.08% gain accuracy at G=100 using only one external resistor RG.
It integrates on-chip EMI filtering on both inputs and guarantees input offset drift ≤0.5µV/°C over –40°C to 125°C in the MS8 package. Gain bandwidth self-adjusts with programmed gain: 3.1MHz at G=1, 184kHz at G=100, and 19kHz at G=1000 - preserving settling time performance in multiplexed DAQ systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 25µV max - enables direct measurement of sub-mV sensor outputs without nulling circuitry |
| Offset Drift | 0.5µV/°C max (–40°C to 125°C) - ensures <±0.5mV total drift over full industrial temp range |
| CMRR | 94dB min at G=1 - rejects >3000:1 common-mode interference in noisy plant-floor environments |
| Bandwidth | 3.1MHz at G=1 - supports fast step response (<6µs to 0.0015%) in multiplexed data acquisition |
| Supply Range | ±2.375V to ±17.5V (4.75V–35V total) - operates from single 5V or dual ±15V rails with 2.75mA typical quiescent current |
| Input Bias Current | 400pA max - preserves signal integrity with high-impedance sources like piezoresistive bridges |
| RFI Filtering | Integrated on inputs - maintains DC precision under 1GHz RF fields per EMIRR test (≥120dB at 100MHz) |
Pinout & Package
LT6370HMS8#TRPBF is housed in an 8-lead plastic MSOP (MS8) package with θJA = 163°C/W and exposed pad electrically isolated. Pin numbering follows standard MSOP top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–RG) | Gain Set Resistor Terminal | Connects to one end of external RG; sets gain via G = 1 + 24.2kΩ/RG |
| 2 (–IN) | Negative Input | High-impedance differential input node; laser-trimmed for matched bias current |
| 3 (+IN) | Positive Input | High-impedance differential input node; paired with –IN for 25µV offset matching |
| 4 (V–) | Negative Supply Rail | Must be bypassed to ground with ≥1µF ceramic capacitor; connects to exposed pad |
| 5 (REF) | Output Reference | Sets output common-mode level; accepts DC voltage or tied to mid-supply for rail-to-rail swing |
| 6 (OUTPUT) | Differential-to-Single-Ended Output | Drives 2kΩ load with ±14.5V swing (±15V supply); 80mA short-circuit current capability |
| 7 (V+) | Positive Supply Rail | Must be bypassed to ground with ≥1µF ceramic capacitor; no internal connection to exposed pad |
| 8 (+RG) | Gain Set Resistor Terminal | Connects to other end of external RG; completes gain-setting current path |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed offset & drift | 25µV max VOS, 0.5µV/°C max drift over –40°C to 125°C - eliminates field calibration for medical sensors |
| Single-resistor gain programming | G = 1 to >1000 set by one external RG - reduces BOM count and layout complexity vs. fixed-gain alternatives |
| Integrated RFI filters | On-chip RC networks on +IN/–IN - maintain 94dB CMRR in motor-drive or RF-rich industrial enclosures |
| Wide supply range | 4.75V to 35V operation - supports legacy ±15V systems and modern 5V/3.3V embedded designs |
| Guaranteed AC CMRR | 71dB at 20kHz (MS8) - ensures stable performance in PWM-switched power monitoring applications |
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 differential-to-single-ended conversion with programmable gain and reference-controlled output level. Use Value: 25µV offset enables direct digitization of 100µV full-scale bridge signals without zero-offset compensation circuitry. | Use Scenario: Channel-multiplexed analog front-end in portable test equipment sampling multiple sensor types. IC Role / Device Role / Timing Role: High-speed instrumentation amplifier with 3.1MHz bandwidth and <6µs settling to 0.0015%. Use Value: Fast settling allows 100kSPS throughput per channel while maintaining 16-bit effective resolution. |
| Thermocouple Amplifier | Strain Gauge Amplifier |
Use Scenario: Cold-junction-compensated thermocouple measurement in HVAC control panels operating from –40°C to 125°C. IC Role / Device Role / Timing Role: Low-drift, high-CMRR signal conditioner referenced to local temperature sensor output. Use Value: 0.5µV/°C drift ensures <±1°C error contribution over full ambient range without software correction. | Use Scenario: Wheatstone bridge readout in structural health monitoring systems deployed outdoors. IC Role / Device Role / Timing Role: High-input-impedance amplifier with 400pA bias current minimizing bridge imbalance errors. Use Value: Enables use of 350Ω strain gauges with <0.01% nonlinearity error even at G=1000. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8421ARMZ | Higher 35nV/√Hz noise, 10µV offset, 0.15µV/°C drift; 10-lead MSOP package | Optimized for high-speed, low-noise applications up to 10MHz; less suitable for ultra-low-drift DC measurements | Select AD8421ARMZ when bandwidth >10MHz and noise <10nV/√Hz are required; avoid for <0.1°C thermal sensing |
| INA826AIDGKR | Lower 50µV offset, 0.45µV/°C drift, 1.5MHz bandwidth; 8-pin VSSOP package | Cost-optimized for consumer-grade industrial sensors; lacks integrated RFI filtering and guaranteed AC CMRR | Select INA826AIDGKR for cost-sensitive, lower-precision applications where EMI immunity is not critical |
Compared with AD8421ARMZ and INA826AIDGKR, the LT6370HMS8#TRPBF delivers superior DC precision (25µV/0.5µV/°C), guaranteed EMI rejection, and wider supply range - making it the preferred choice for metrology-grade transducer interfaces requiring long-term stability.
Availability
LT6370HMS8#TRPBF is available at Aetrix Electronics and suitable for bridge amplifiers, thermocouple interfaces, and high-accuracy data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for LT6370HMS8#TRPBF 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 was designed specifically for high-accuracy, low-drift transducer signal conditioning - targeting applications where long-term calibration stability and EMI robustness are critical, such as medical diagnostics and precision test equipment.
FAQ
What is the maximum guaranteed input offset voltage drift for LT6370HMS8#TRPBF over its full operating temperature range?
The LT6370HMS8#TRPBF has a maximum input offset voltage drift of 0.5µV/°C over the –40°C to 125°C range, as specified in the Electrical Characteristics table for the MS8 package at H-grade temperature limits. This value is validated through automated high-speed testing and reflects worst-case unit distribution across production lots.
Can LT6370HMS8#TRPBF operate from a single 5V supply, and what is its output swing under that condition?
Yes, LT6370HMS8#TRPBF supports single 5V operation (VS = 4.75V to 35V). With VS = 5V, RL = 10kΩ, and TA = 25°C, the output swing is specified as –2.3V to +1.6V relative to V–, enabling direct interfacing with 3.3V ADCs when REF is set to 1.65V.
How does the LT6370HMS8#TRPBF achieve guaranteed gain drift performance, and what is the specification for G > 1?
The LT6370HMS8#TRPBF achieves guaranteed gain drift via proprietary on-chip test capability and laser trimming of internal resistors. For G > 1, the gain drift is 50ppm/°C max over –40°C to 125°C (MS8 package), as confirmed in the Electrical Characteristics table under "Gain vs Temperature" for the H-grade variant.
Is the exposed pad on the LT6370HMS8#TRPBF MSOP package electrically connected, and if so, to which potential?
Yes, the exposed pad on the LT6370HMS8#TRPBF MSOP package is electrically connected to the V– pin (Pin 4). Per the Absolute Maximum Ratings and Package Description, it must be soldered to a PCB ground plane or connected directly to the negative supply rail for thermal and electrical performance.
What external components are required to configure LT6370HMS8#TRPBF for G = 100, and what tolerance is recommended for RG?
To configure LT6370HMS8#TRPBF for G = 100, a 243Ω external resistor (RG) is required between Pins 1 (–RG) and 8 (+RG), per the gain equation G = 1 + 24.2kΩ/RG. A 0.1% tolerance metal-film resistor is recommended to maintain the 0.01% max gain error specification at G = 1 and minimize temperature-induced gain variation.
LT6370HMS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Instrumentation
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 11V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 19 kHz
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 15 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-MSOP
LT6370HMS8#TRPBF FAQ
1.How can I place an order for LT6370HMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6370HMS8#TRPBF 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 LT6370HMS8#TRPBF reliable?
The price and inventory of LT6370HMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6370HMS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6370HMS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6370HMS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6370HMS8#TRPBF?
LT6370HMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6370HMS8#TRPBF 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 LT6370HMS8#TRPBF?
For technical support, including LT6370HMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6370HMS8#TRPBF requirements.
6.How does Aetrix verify that LT6370HMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6370HMS8#TRPBF 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 LT6370HMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6370HMS8#TRPBF?
All LT6370HMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6370HMS8#TRPBF, 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 LT6370HMS8#TRPBF part is unused and in its original packaging.
Return procedure for LT6370HMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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