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Analog Devices Inc. LTC6240HVIS5#TRMPBF
- Part No.:
- LTC6240HVIS5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC6240HVIS5#TRMPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,761
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Product details
Overview
LTC6240HVIS5#TRMPBF from Analog Devices (formerly Linear Technology) is a single-channel, rail-to-rail output, low-noise CMOS operational amplifier optimized for high-impedance, precision signal conditioning. It delivers 18MHz gain bandwidth, 10V/μs slew rate, 550nVP-P (0.1Hz–10Hz) input noise, ≤125μV max input offset voltage, and guaranteed ≤1pA input bias current at –40°C to +85°C. It is widely used in photodiode amplifiers and medical instrumentation where ultra-low input current and low 1/f noise are critical.
For engineers reviewing the LTC6240HVIS5#TRMPBF datasheet, LTC6240HVIS5#TRMPBF pinout, LTC6240HVIS5#TRMPBF application, or LTC6240HVIS5#TRMPBF equivalent, key selection criteria include its H-grade temperature range (–40°C to +85°C), HV-series ±5V supply capability, 5-pin TSOT-23 package constraints, and verified performance in low-current sensor front-ends and battery-powered precision analog stages.
Technical Context
The LTC6240HVIS5#TRMPBF employs a proprietary CMOS input stage with guarded input traces and optimized layout to achieve sub-picoampere bias current across its full operating temperature range. Its unity-gain-stable architecture supports direct use in transimpedance configurations without external compensation.
It features a rail-to-rail output stage that swings within 30mV of either supply rail under 5mA load, and an input common-mode range extending to the negative rail - enabling true single-supply operation down to 2.8V total supply. The HV variant supports ±5V supplies while maintaining identical noise and offset specs as the standard version.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 18MHz - enables stable closed-loop gain ≥10 at 1.8MHz or ≥2 at 9MHz for anti-aliasing or active filtering. |
| Input Bias Current | ≤1pA max (–40°C to +85°C) - preserves signal integrity in >1GΩ source impedance applications like photodiode or pH electrode interfaces. |
| 0.1Hz–10Hz Noise | 550nVP-P - ensures minimal baseline drift in DC-coupled medical sensors and precision weigh-scale amplifiers. |
| Input Offset Voltage | ≤125μV max - reduces initial error in 16-bit+ data acquisition systems without trimming. |
| Slew Rate | 10V/μs - supports fast settling of 2V steps in <1.1μs (0.1%); sufficient for multiplexed sensor arrays with moderate update rates. |
| Supply Range | 2.8V to ±5.5V - allows flexible use in 3.3V single-supply systems or ±5V industrial signal chains without level-shifting. |
| Operating Temp | –40°C to +85°C - qualified for automotive cabin electronics, industrial PLC I/O modules, and portable diagnostic equipment. |
Pinout & Package
The LTC6240HVIS5#TRMPBF is housed in a 5-lead plastic TSOT-23 (S5) package with exposed pad (not electrically connected). Pin 1 is marked by a dot; the package is lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail swing (within 30mV of V+ or V–) into ≥10kΩ loads; requires local 0.1μF bypass at V+. |
| 2 (V–) | Negative supply | Reference for internal biasing; connects to ground (single-supply) or negative rail (dual-supply); undersides metal may be tied to V– for thermal relief. |
| 3 (+IN) | Non-inverting input | High-impedance CMOS node; guard ring routing recommended on PCB to minimize leakage paths. |
| 4 (–IN) | Inverting input | Matches +IN in offset and bias current; used for feedback in transimpedance or difference amplifier topologies. |
| 5 (V+) | Positive supply | Accepts 2.8V to 6V (single) or ±2.75V (dual); decoupling capacitor must be placed within 2mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | Guaranteed ≤1pA max over –40°C to +85°C - eliminates significant error in high-Z sensor interfaces without guard rings or T-networks. |
| Low 1/f noise | 550nVP-P (0.1Hz–10Hz) - enables stable DC measurements in electrochemical and biopotential applications without chopper stabilization. |
| Rail-to-rail output | Swings to within 30mV of either rail at 5mA - maximizes dynamic range in low-voltage (3.3V) systems, reducing need for level-shifting. |
| HV-series dual-supply support | Operates up to ±5.5V while retaining same noise/offset specs - simplifies migration from single- to dual-supply designs without requalification. |
| Unity-gain stable | No external compensation required - reduces BOM count and board space in transimpedance amplifiers for photodiodes and ion-selective electrodes. |
Applications
| Photodiode Amplifier | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying nanoamp-level photocurrent from a reverse-biased silicon photodiode in a pulse oximeter sensor module. IC Role / Device Role: Transimpedance amplifier (TIA) with 10MΩ feedback resistor, configured for DC-coupled, low-drift output. Use Value: ≤1pA input bias current prevents saturation; 550nVP-P 0.1–10Hz noise ensures clean R-wave detection without baseline wander. | Use Scenario: First-stage amplification of microvolt-level cardiac signals in a battery-powered wearable ECG patch. IC Role / Device Role: High-input-impedance, low-noise instrumentation amplifier input buffer (gain = 1). Use Value: Rail-to-rail output delivers full 3.3V ADC range; 125μV max offset minimizes calibration burden in Class III medical devices. |
| Capacitive Touch Sensor Interface | Industrial Thermocouple Signal Conditioning |
Use Scenario: Charge amplifier for a 10pF capacitive touch button in an IP65-rated HMI panel. IC Role / Device Role: Integrator-based charge-to-voltage converter with guarded input and low-leakage feedback path. Use Value: Sub-pA bias current prevents integration drift over 100ms sampling windows; 18MHz GBW supports fast touch response (<5ms). | Use Scenario: Cold-junction compensation and amplification of Type-K thermocouple outputs in a programmable logic controller (PLC) analog input module. IC Role / Device Role: Precision, low-drift buffer and gain stage preceding a 24-bit ΣΔ ADC. Use Value: 2.5μV/°C max offset drift ensures <0.5°C measurement error over –25°C to +70°C ambient; ±5V HV operation matches PLC backplane rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, low-input-bias op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4530-1ARMZ | 0.1fA typical input bias current (vs. 1pA max), higher 1/f noise (8μVP-P), 2MHz GBW | Better for femtoamp current measurement; unsuitable for >10kHz signal bandwidths | Select when ultra-low IB dominates over speed/noise; avoid if >5MHz closed-loop bandwidth needed. |
| OPA377AIDBVR | 0.2pA typical IB (not guaranteed max), 750nVP-P 0.1–10Hz noise, 10MHz GBW, lower cost | Lower performance ceiling; not specified for ±5V or extended temperature | Acceptable for commercial-grade portable instruments where 125°C rating and HV supply are unnecessary. |
Compared with ADA4530-1ARMZ and OPA377AIDBVR, the LTC6240HVIS5#TRMPBF uniquely balances guaranteed sub-picoampere bias current, 18MHz bandwidth, and –40°C to +85°C HV operation - making it the only option qualified for ruggedized, wide-supply, high-speed precision sensing in industrial and medical edge devices.
Availability
LTC6240HVIS5#TRMPBF is available at Aetrix Electronics and suitable for photodiode amplifiers, portable ECG front-ends, and industrial thermocouple signal conditioning requiring stable component supply across automotive, medical, and industrial production cycles.
Supply support for LTC6240HVIS5#TRMPBF 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 LTC6240 family belongs to ADI's precision op amp product line, designed specifically for ultra-low-input-bias, low-noise, rail-to-rail signal conditioning in high-impedance sensor interfaces and battery-constrained medical devices.
FAQ
What is the maximum guaranteed input bias current for LTC6240HVIS5#TRMPBF over temperature?
The LTC6240HVIS5#TRMPBF guarantees ≤1pA maximum input bias current across its full operating temperature range of –40°C to +85°C. This specification is explicitly stated in the Absolute Maximum Ratings and Electrical Characteristics tables for the H-grade (industrial) version, and is validated per Note 7 in the datasheet. This makes LTC6240HVIS5#TRMPBF suitable for photodiode and piezoelectric sensor interfaces where leakage current directly impacts accuracy.
Does LTC6240HVIS5#TRMPBF support dual-supply operation, and what is its maximum total supply voltage?
Yes, LTC6240HVIS5#TRMPBF supports dual-supply operation up to ±5.5V (11V total), as confirmed by its HV-series designation and Absolute Maximum Ratings table. It maintains identical low-noise and low-offset performance at ±5V as at 3V or 5V single supplies. This dual-supply capability is essential for bipolar signal conditioning in industrial analog I/O modules and legacy test equipment, and is a key differentiator from non-HV variants limited to 6V total supply.
What is the 0.1Hz to 10Hz input noise voltage of LTC6240HVIS5#TRMPBF, and why is it important for sensor applications?
The LTC6240HVIS5#TRMPBF specifies 550nVP-P input noise in the 0.1Hz to 10Hz band - a critical metric for DC and low-frequency sensor signals. This low 1/f noise minimizes baseline drift in applications such as ECG, EEG, and strain-gauge bridges, where signal frequencies lie below 10Hz. Unlike chopper-stabilized amplifiers, LTC6240HVIS5#TRMPBF achieves this without switching artifacts, preserving signal fidelity in sensitive biomedical measurements.
Can LTC6240HVIS5#TRMPBF drive capacitive loads directly, and what is its phase margin at 5pF?
LTC6240HVIS5#TRMPBF is unity-gain stable and characterized with 5pF capacitive load (CL) in its Typical Performance Characteristics. At CL = 5pF and RL = 1kΩ, phase margin remains ≥60° across –55°C to +125°C (Figure G13), ensuring robust stability in transimpedance amplifier configurations with photodiode junction capacitance. No external isolation resistor is required, simplifying layout and improving SNR in high-gain TIA designs using LTC6240HVIS5#TRMPBF.
What package type and pin count does LTC6240HVIS5#TRMPBF use, and is the exposed pad electrically connected?
LTC6240HVIS5#TRMPBF uses a 5-lead plastic TSOT-23 (S5) package, with pin 1 marked by a dot. The underside metal pad is not electrically connected - it serves solely as a thermal relief path and may be left floating or soldered to a thermal pad for improved power dissipation. This compact 1mm height package enables high-density layouts in space-constrained portable medical and IoT sensor nodes, and is compatible with standard SMT reflow profiles.
LTC6240HVIS5#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.5 pA
- Voltage - Input Offset:
- 60 µV
- Current - Supply:
- 2.7mA
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LTC6240HVIS5#TRMPBF FAQ
1.How can I place an order for LTC6240HVIS5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6240HVIS5#TRMPBF 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 LTC6240HVIS5#TRMPBF reliable?
The price and inventory of LTC6240HVIS5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6240HVIS5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6240HVIS5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6240HVIS5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6240HVIS5#TRMPBF?
LTC6240HVIS5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6240HVIS5#TRMPBF 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 LTC6240HVIS5#TRMPBF?
For technical support, including LTC6240HVIS5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6240HVIS5#TRMPBF requirements.
6.How does Aetrix verify that LTC6240HVIS5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6240HVIS5#TRMPBF 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 LTC6240HVIS5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6240HVIS5#TRMPBF?
All LTC6240HVIS5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6240HVIS5#TRMPBF, 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 LTC6240HVIS5#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6240HVIS5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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