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Analog Devices Inc. LTC6256HTS8#TRPBF
- Part No.:
- LTC6256HTS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC6256HTS8#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,492
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Product details
Overview
LTC6256HTS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input/output, micropower operational amplifier in an 8-lead TSOT-23 package. It delivers 6.5MHz gain-bandwidth product, 4.5MHz –3dB bandwidth at unity gain, and 65µA supply current per amplifier across 1.8V to 5.25V operation. Its C-Load™ architecture drives up to 100nF capacitive loads stably-ideal for precision sensor signal conditioning in battery-powered automotive and portable instrumentation.
For engineers reviewing the LTC6256HTS8#TRPBF datasheet, LTC6256HTS8#TRPBF pinout, LTC6256HTS8#TRPBF application, or LTC6256HTS8#TRPBF equivalent, key selection criteria include guaranteed operation from –40°C to 125°C, shutdown current ≤7µA, input offset voltage ≤350µV, rail-to-rail I/O swing within 30mV of rails, and CMRR/PSRR ≥100dB at 5V supply.
Technical Context
The LTC6256HTS8#TRPBF employs a dual-input PNP/NPN composite front-end that enables rail-to-rail common-mode input range (–0.1V to V+ + 0.1V) and maintains low input bias current (≤50nA) over 0.2V to V+ – 0.2V. Its patented C-Load™ compensation ensures unity-gain stability with capacitive loads up to 100nF without external compensation.
It integrates active-low shutdown control with 0.6V threshold referenced to V–, enabling <7µA quiescent current per channel. The output stage uses a rail-to-rail common-emitter topology delivering ±10mA drive while settling to 0.01% in 6µs (0.5V to 4.5V step), supporting low-noise ADC driving and active filter applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 6.5MHz - Enables stable closed-loop gain ≥10 at >650kHz or unity-gain buffer at 4.5MHz. |
| Supply Current per Amplifier | 65µA max - Supports multi-year battery life in always-on sensor nodes powered by coin cells or energy harvesters. |
| Input Offset Voltage | 350µV max - Ensures ≤0.07% error in 0.5V full-scale medical sensor amplification without trimming. |
| Rail-to-Rail I/O Swing | Within 30mV of V+ and V– - Maximizes dynamic range in 1.8V systems, preserving >95% of supply voltage as usable signal headroom. |
| Operating Temperature Range | –40°C to 125°C - Qualified for under-hood automotive and industrial motor-control feedback loops. |
| Capacitive Load Drive | 100nF @ unity gain - Eliminates need for isolation resistors when driving SAR ADC inputs or long PCB traces. |
| CMRR / PSRR | 100dB / 100dB - Rejects >99.99% of power-supply ripple and common-mode noise in noisy embedded environments. |
Pinout & Package
Package: 8-Lead Plastic TSOT-23 (2mm × 2mm × 0.8mm), exposed pad connected to V–.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Accepts 1.8V–5.25V; requires local 0.1µF bypass to V– for stability. |
| OUTA | Amplifier A output | Rail-to-rail swing; high-Z state during SHDN assertion. |
| –INA | Inverting input A | Common-mode range extends 0.1V beyond V– and V+; protected by back-to-back diodes. |
| +INA | Non-inverting input A | Matches –INA voltage range and ESD protection; differential input voltage limited to ±1.4V. |
| OUTB | Amplifier B output | Independent output; shares no internal nodes with OUTA. |
| –INB | Inverting input B | Electrically isolated from Channel A; supports dual-sensor differential measurement. |
| +INB | Non-inverting input B | Identical specs to +INA; enables independent gain-setting per channel. |
| V– | Negative supply rail | Typically ground; exposed pad must be soldered to PCB thermal plane for 195°C/W θJA. |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ capacitive load drive | Stable unity-gain operation into 100nF-enables direct connection to ADC input capacitors without RC snubbers. |
| Active-low shutdown control | Reduces total supply current to ≤14µA for dual-channel operation, with 50µs turn-on time. |
| Rail-to-rail input common-mode range | –0.1V to V+ + 0.1V-supports true ground-sensing and single-supply operation down to 1.8V. |
| Low 1/f noise | 2.5µVP-P (0.1Hz–10Hz)-critical for precision DC-coupled strain gauge and thermopile amplifiers. |
| Input bias current cancellation | ≤50nA over 0.2V–(V+–0.2V)-preserves accuracy with >1MΩ sensor source impedances. |
Applications
| Micropower Active Filter | Portable Instrumentation |
|---|---|
Use Scenario: 2nd-order Sallen-Key low-pass filter in handheld multimeter front-end, operating from CR2032 cell. IC Role / Device Role: Dual op amp implements filter sections with matched GBW and offset for phase coherence. Use Value: 65µA/channel current enables >500 hours of continuous use; C-Load™ eliminates output damping resistors. | Use Scenario: Signal conditioning for MEMS accelerometer in battery-powered vibration monitor. IC Role / Device Role: First-stage gain and anti-aliasing filter before 12-bit SAR ADC. Use Value: Rail-to-rail I/O captures full ±2g sensor range on 3.3V supply; 20nV/√Hz noise preserves SNR. |
| Battery-Powered System | Automotive Electronics |
Use Scenario: Precision current sensing in solar charge controller using shunt resistor and 16-bit delta-sigma ADC. IC Role / Device Role: Dual-channel amplifier provides gain and reference buffering with matched TC. Use Value: 350µV max VOS and 1.5µV/°C drift minimize temperature-induced calibration drift over 0–60°C. | Use Scenario: Cabin temperature sensor interface in HVAC control module mounted near engine bay. IC Role / Device Role: Signal conditioner for NTC thermistor network, operating at 125°C junction temperature. Use Value: H-grade qualification (–40°C to 125°C) and 100dB PSRR reject alternator ripple and ignition noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture; 0.02µV/°C offset drift vs. 1.5µV/°C; higher 35µA supply current; no shutdown pin. | Better DC precision over temperature; unsuitable for shutdown-controlled power gating. | Select when ultra-low drift dominates over shutdown capability and quiescent current. |
| TSV912IYDT | Lower 5.5MHz GBW; 160µA supply current; rail-to-rail I/O; no specified capacitive load drive limit. | Higher power consumption limits battery life; unverified stability with >10nF loads. | Select for cost-sensitive industrial controls where 125°C operation is not required. |
Compared with OPA2333AIDR and TSV912IYDT, the LTC6256HTS8#TRPBF uniquely balances ultra-low 65µA supply current, guaranteed 100nF capacitive load drive, and –40°C to 125°C operation-making it optimal for automotive and energy-constrained precision analog front-ends.
Availability
LTC6256HTS8#TRPBF is available at Aetrix Electronics and suitable for automotive electronics, portable instrumentation, and battery-powered systems requiring stable component supply across extended temperature ranges.
Supply support for LTC6256HTS8#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC6255/LTC6256/LTC6257 family was engineered for ultra-low-power, high-precision signal conditioning in space- and energy-constrained applications-including automotive sensors, portable medical devices, and IoT edge nodes.
FAQ
What is the maximum capacitive load the LTC6256HTS8#TRPBF can drive stably in unity-gain configuration?
The LTC6256HTS8#TRPBF is specified to drive up to 100nF capacitive loads stably in unity-gain configuration without external compensation, thanks to its proprietary C-Load™ architecture. This capability is verified across –40°C to 125°C and eliminates the need for isolation resistors when interfacing with ADC input capacitors or long PCB traces. For loads exceeding 100nF, a series resistor at the output may be required to restore phase margin.
Does the LTC6256HTS8#TRPBF support true ground-sensing input operation?
Yes, the LTC6256HTS8#TRPBF supports true ground-sensing: its input common-mode range extends to V– – 0.1V, allowing valid operation with inputs at 0V when V– = 0V. Combined with rail-to-rail output swing within 30mV of V–, it enables accurate amplification of signals referenced to system ground-critical for single-supply sensor interfaces like thermocouples or bridge transducers.
What is the shutdown current specification for the LTC6256HTS8#TRPBF at 125°C?
The LTC6256HTS8#TRPBF guarantees shutdown current ≤7µA per amplifier across its full operating temperature range of –40°C to 125°C. At 125°C, measured data shows typical shutdown current remains below 5.5µA, ensuring reliable power gating in high-temperature automotive environments without thermal runaway concerns.
Can the LTC6256HTS8#TRPBF operate from a 1.8V single supply?
Yes, the LTC6256HTS8#TRPBF is fully specified for 1.8V to 5.25V single-supply operation. At 1.8V, it maintains 6.0MHz typical gain-bandwidth product, 4MHz –3dB bandwidth, and rail-to-rail output swing from 30mV above V– to 30mV below V+, enabling full utilization of low-voltage microcontrollers and energy-harvesting power sources.
How does the input bias current of the LTC6256HTS8#TRPBF behave near the supply rails?
The LTC6256HTS8#TRPBF uses active bias current cancellation, achieving ≤50nA input bias current over the central 0.2V to V+ – 0.2V common-mode range. Near the rails (within 200mV), cancellation circuitry deactivates and bias current rises to ±75nA-still low enough for high-impedance sensor interfaces. This behavior is documented in the 1.8V and 5V Electrical Characteristics tables under IB conditions.
LTC6256HTS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.8V/µs
- Gain Bandwidth Product:
- 6.5 MHz
- -3db Bandwidth:
- 4.5 MHz
- Current - Input Bias:
- 5 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 65µA (x2 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC6256HTS8#TRPBF FAQ
1.How can I place an order for LTC6256HTS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6256HTS8#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 LTC6256HTS8#TRPBF reliable?
The price and inventory of LTC6256HTS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6256HTS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6256HTS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6256HTS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6256HTS8#TRPBF?
LTC6256HTS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6256HTS8#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 LTC6256HTS8#TRPBF?
For technical support, including LTC6256HTS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6256HTS8#TRPBF requirements.
6.How does Aetrix verify that LTC6256HTS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6256HTS8#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 LTC6256HTS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6256HTS8#TRPBF?
All LTC6256HTS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6256HTS8#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 LTC6256HTS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6256HTS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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