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Analog Devices Inc. LTC6800HMS8#TRPBF
- Part No.:
- LTC6800HMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6800HMS8#TRPBF.pdf
- Description:
- IC INST AMP 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,569
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Product details
Overview
LTC6800HMS8#TRPBF from Analog Devices (acquired Linear Technology) is a precision rail-to-rail input/output instrumentation amplifier with 116dB CMRR independent of gain, ±100µV max input offset voltage, and –40°C to 125°C operation. It uses charge-balanced sampled-data architecture and zero-drift op-amp amplification for high-accuracy signal conditioning in thermocouple, strain gauge, and medical sensor front-ends.
For engineers reviewing the LTC6800HMS8#TRPBF datasheet, LTC6800HMS8#TRPBF pinout, LTC6800HMS8#TRPBF application, or LTC6800HMS8#TRPBF equivalent, key selection criteria include guaranteed offset drift ≤250nV/°C over temperature, rail-to-rail output swing down to 20mV above V–, and compatibility with 2.7V–5.5V single-supply systems requiring stable DC gain accuracy.
Technical Context
The LTC6800HMS8#TRPBF implements a switched-capacitor front-end that samples differential input voltage onto internal capacitor CS, translates its common-mode level to REF, then amplifies the resulting signal using an internal zero-drift op amp. Gain is set externally via resistor ratio at RG and REF pins, supporting unity to high gain configurations without degrading CMRR.
Its architecture delivers 116dB CMRR across full input common-mode range (0V to VS), maintains 100ppm gain nonlinearity at G=1, and achieves 200kHz internal op-amp gain bandwidth with 0.2V/µs slew rate - enabling accurate settling within 333µs per bit for N-bit resolution at 3kHz sampling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CMRR | 116dB typical, independent of gain - ensures rejection of interference common to both inputs regardless of configured gain setting. |
| Input Offset Voltage | ±100µV max - enables sub-100µV error budget in precision bridge or thermocouple measurement paths. |
| Offset Drift | ≤250nV/°C over –40°C to 125°C - guarantees minimal thermal-induced error in industrial and automotive environments. |
| Supply Range | 2.7V to 5.5V - supports direct interface with 3.3V and 5V logic/system rails without level-shifting. |
| Output Swing | Rail-to-rail, low-side down to 20mV above V– - maximizes dynamic range in single-supply data acquisition. |
| Gain Bandwidth | 200kHz - provides sufficient bandwidth for DC-coupled sensor signals up to ~10kHz with <0.1% gain error. |
| Sampling Frequency | 3kHz - defines maximum update rate for continuous monitoring of slow-varying physical parameters. |
Pinout & Package
The LTC6800HMS8#TRPBF is housed in an 8-lead plastic MSOP (MS8) package, 3.00mm × 3.00mm × 1.10mm, with exposed pad internally connected to V– for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NC (Pin 1) | No connect | Unused terminal; must be left floating or tied to V– for mechanical stability. |
| –IN (Pin 2) | Inverting input | Differential input node; accepts rail-to-rail common-mode voltage up to V+ – 1.3V. |
| +IN (Pin 3) | Noninverting input | Differential input node; matched to –IN for optimal CMRR and bias current cancellation. |
| V– (Pin 4) | Negative supply | Ground reference for internal circuitry and output swing; connects to exposed pad. |
| REF (Pin 5) | Reference voltage input | Sets output common-mode level; determines DC offset of amplified signal relative to V–. |
| RG (Pin 6) | Inverting input of internal op amp | External feedback node for gain-setting resistor; enables programmable gain via R1/R2 ratio. |
| OUT (Pin 7) | Amplifier output | Single-ended rail-to-rail output; drives loads ≥2kΩ with <20mV headroom to V–. |
| V+ (Pin 8) | Positive supply | Primary power rail; requires 0.1µF ceramic bypass capacitor directly between V+ and V–. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of supply rails in single-supply systems, preserving signal fidelity across entire input range. |
| 116dB CMRR independent of gain | Eliminates need for gain-dependent calibration or trimming; maintains noise immunity at all gain settings. |
| ±100µV max input offset voltage | Reduces initial calibration burden in high-resolution systems (e.g., 16-bit+ ADC interfaces). |
| –40°C to 125°C operating range | Supports deployment in under-hood automotive, industrial motor control, and outdoor instrumentation. |
| Charge-balanced sampled-data architecture | Rejects 1/f noise and eliminates chopper-related switching artifacts while retaining DC precision. |
Applications
| Thermocouple Amplifiers | Electronic Scales |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in furnace controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier providing gain, common-mode rejection, and rail-to-rail output for ADC input stage. Use Value: 116dB CMRR suppresses heater-induced EMI; ±100µV offset ensures <0.5°C absolute error at 0°C reference junction. |
Use Scenario: Conditioning mV outputs from load-cell bridges in commercial weighing platforms. IC Role / Device Role / Timing Role: Low-drift signal conditioner converting differential bridge voltage into single-ended signal for sigma-delta ADC. Use Value: ≤250nV/°C drift minimizes temperature-induced zero-point drift; rail-to-rail output matches 3.3V ADC input range. |
| Medical Instrumentation | Strain Gauge Amplifiers |
Use Scenario: Front-end amplification of biopotential signals (e.g., ECG leads) in portable patient monitors. IC Role / Device Role / Timing Role: High-CMRR, low-noise instrumentation amplifier rejecting 50/60Hz mains interference. Use Value: 116dB CMRR at 60Hz rejects line noise without notch filtering; 2.7V min supply enables battery-powered operation. |
Use Scenario: Signal conditioning for bonded foil strain gauges in structural health monitoring sensors. IC Role / Device Role / Timing Role: Precision gain block translating microstrain-induced resistance changes into measurable voltage. Use Value: 100ppm gain nonlinearity preserves linearity over full mechanical range; 3kHz sampling supports real-time vibration analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2053IMS8#TRPBF | 10µV max offset, 50nV/°C max drift, rail-to-rail I/O, but fixed G=100 only; no external gain programming. | Better DC precision but less flexible gain configuration; suited for factory-calibrated systems where gain is fixed. | Select LTC2053IMS8#TRPBF when ultra-low offset and drift outweigh need for adjustable gain. |
| LT1167CS8#PBF | 7.5nV/√Hz input noise, single-resistor gain (G = 1–10,000), 120dB CMRR at G=100, but 125°C max temp rating not guaranteed. | Superior AC performance and wider gain range, but lacks guaranteed –40°C to 125°C operation and higher offset (±50µV). | Select LT1167CS8#PBF when wide-bandwidth sensor signals require lower noise and broader gain flexibility. |
Compared with LTC2053IMS8#TRPBF and LT1167CS8#PBF, the LTC6800HMS8#TRPBF uniquely balances guaranteed high-temperature operation, externally programmable gain, and 116dB CMRR independent of gain - making it optimal for uncalibrated, field-deployed industrial sensors requiring long-term DC stability.
Availability
LTC6800HMS8#TRPBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, medical instrumentation, strain gauge amplifiers, and high-resolution data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for LTC6800HMS8#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 acquired Linear Technology in 2017 and continues its legacy of high-performance analog ICs, with headquarters in Norwood, MA and global design/manufacturing infrastructure.
The LTC6800HMS8#TRPBF belongs to Linear Technology's precision instrumentation amplifier product line, designed specifically for DC-coupled, high-accuracy sensor signal conditioning in harsh thermal environments.
FAQ
What is the maximum guaranteed input offset voltage for LTC6800HMS8#TRPBF over temperature?
The LTC6800HMS8#TRPBF has a maximum input offset voltage of ±100µV over the full –40°C to 125°C operating range. This specification is guaranteed by design and characterization, and applies under standard test conditions with VCM = 200mV. The device's zero-drift architecture ensures this limit holds across temperature without requiring external calibration.
Does LTC6800HMS8#TRPBF support true rail-to-rail input common-mode range?
Yes, the LTC6800HMS8#TRPBF supports rail-to-rail input common-mode voltage from V– to V+, subject to the constraint V– ≤ (V+IN – V–IN) + VREF ≤ V+ – 1.3V. This allows direct interfacing with sensors whose output swings near supply rails, such as bridge circuits powered from the same 3.3V or 5V rail used by the LTC6800HMS8#TRPBF.
How is gain programmed on LTC6800HMS8#TRPBF?
Gain on the LTC6800HMS8#TRPBF is set externally using two resistors: one between RG (Pin 6) and OUT (Pin 7), and another between RG and REF (Pin 5). The gain equation is G = 1 + R2/R1, where R2 connects RG to OUT and R1 connects RG to REF. This configuration mirrors traditional op-amp feedback and maintains CMRR independence from gain setting.
What is the purpose of the REF pin on LTC6800HMS8#TRPBF?
The REF pin (Pin 5) on the LTC6800HMS8#TRPBF sets the output common-mode voltage level. The amplifier output is referenced to this pin, allowing precise control of DC offset - for example, biasing the output at mid-supply for bipolar ADC interfaces or at ground for single-ended systems. It also serves as the translation reference for the internal switched-capacitor front-end.
Can LTC6800HMS8#TRPBF operate from a 3.3V supply?
Yes, the LTC6800HMS8#TRPBF operates from 2.7V to 5.5V, making 3.3V fully compliant. At 3.3V, it delivers rail-to-rail output swing with high-side down to 3.15V and low-side up to 20mV above V–, and maintains 116dB CMRR and ±100µV offset specifications. A 0.1µF ceramic capacitor must be placed between V+ and V– for stable operation.
LTC6800HMS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- 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:
- Rail-to-Rail
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 1.3mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6800HMS8#TRPBF FAQ
1.How can I place an order for LTC6800HMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6800HMS8#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 LTC6800HMS8#TRPBF reliable?
The price and inventory of LTC6800HMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6800HMS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6800HMS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6800HMS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6800HMS8#TRPBF?
LTC6800HMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6800HMS8#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 LTC6800HMS8#TRPBF?
For technical support, including LTC6800HMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6800HMS8#TRPBF requirements.
6.How does Aetrix verify that LTC6800HMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6800HMS8#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 LTC6800HMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6800HMS8#TRPBF?
All LTC6800HMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6800HMS8#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 LTC6800HMS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6800HMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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