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Analog Devices Inc. LTC6256CTS8#TRMPBF
- Part No.:
- LTC6256CTS8#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC6256CTS8#TRMPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:134
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Product details
Overview
LTC6256CTS8#TRMPBF 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 ultra-low 65µA supply current per amplifier across 1.8V to 5.25V supply range. Its C-Load™ architecture drives up to 100nF capacitive loads stably - ideal for low-power sensor signal conditioning in portable instrumentation.
For engineers reviewing the LTC6256CTS8#TRMPBF datasheet, LTC6256CTS8#TRMPBF pinout, LTC6256CTS8#TRMPBF application, or LTC6256CTS8#TRMPBF equivalent, key selection criteria include shutdown capability (7µA max), ±350µV offset voltage, 100dB CMRR/PSRR, rail-to-rail I/O swing within 30mV of rails, and compatibility with 1.8V battery-powered systems requiring precision and stability.
Technical Context
The LTC6256CTS8#TRMPBF employs a dual-input PNP/NPN composite front-end that enables true rail-to-rail input operation (–0.1V to V+ + 0.1V) and maintains low input bias current (≤50nA) over 0.2V–(V+–0.2V) common-mode range. Its patented C-Load™ compensation ensures unity-gain stability with capacitive loads up to 100nF without external compensation.
It integrates active low SHDN control (VIH = 1.5V, VIL = 0.6V) enabling fast turn-on/off (tON = 50µs, tOFF = 20µs at 5V) and high-impedance output state during shutdown. The device operates across –40°C to 85°C (I-grade), with guaranteed 100dB CMRR and PSRR over full temperature and supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 6.5MHz - enables stable unity-gain buffer or gain-of-10 amplification up to 650kHz without phase margin loss. |
| Supply Current per Amplifier | 65µA max - supports >1-year battery life in coin-cell–powered IoT sensors with 200µA system budget. |
| Input Offset Voltage | ±350µV max - ensures <0.1% error in 3.3V full-scale 12-bit ADC front-ends without trimming. |
| Rail-to-Rail I/O Swing | Within 30mV of V– and V+ - preserves dynamic range in 1.8V single-supply systems with 0–1.8V input signals. |
| Capacitive Load Drive | 100nF stable in unity gain - eliminates need for isolation resistor when driving SAR ADC sample capacitors or LCD bias networks. |
| CMRR / PSRR | 100dB min - rejects power rail noise and common-mode interference in noisy automotive or industrial environments. |
| Shutdown Current | 7µA max - reduces system standby power by >90% versus active mode, critical for duty-cycled sensor nodes. |
Pinout & Package
Package: 8-Lead Plastic TSOT-23 (TS8), 2.9mm × 1.6mm × 0.8mm, exposed pad not connected (non-functional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Accepts 1.8V–5.25V; bypass with 0.1µF ceramic capacitor directly to V– for stability. |
| OUTA | Amplifier A output | Rail-to-rail capable; high-impedance during SHDN assertion. |
| –INA | Inverting input A | Operates from V– – 0.1V to V+ + 0.1V; protected by back-to-back diodes. |
| +INA | Non-inverting input A | Same voltage range as –INA; matched bias current cancellation improves CMRR. |
| OUTB | Amplifier B output | Independent output; shares no internal nodes with OUTA - suitable for dual-channel filtering. |
| –INB | Inverting input B | Electrically isolated from channel A; enables independent feedback networks. |
| +INB | Non-inverting input B | Full rail-to-rail common-mode range; identical specs to +INA. |
| V– | Negative supply rail | Typically ground; supports split supplies if V+–V– ∈ [1.8V, 5.25V]. |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ capacitive drive | Stable with 100nF load in unity gain - eliminates external isolation resistors in ADC driver and filter applications. |
| Rail-to-rail input/output | Input range extends 100mV beyond rails; output swings to within 30mV - maximizes signal headroom in 1.8V systems. |
| Low-noise architecture | 20nV/√Hz input voltage noise at 1kHz - preserves SNR in low-level sensor amplification (e.g., thermopile, bridge). |
| Active low shutdown | SHDN pin reduces supply current to ≤7µA; output enters high-Z state - enables multiplexed analog front-ends. |
| Wide supply range | Operates from 1.8V to 5.25V - compatible with Li-ion, coin cell, and USB-powered designs without LDO overhead. |
| High PSRR/CMRR | 100dB minimum over –40°C to 85°C - maintains accuracy in electrically noisy environments like automotive ECUs. |
Applications
| Micropower Active Filter | Portable Instrumentation |
|---|---|
Use Scenario: 2nd-order Sallen-Key low-pass filter for ECG front-end with 100Hz cutoff and 1.8V supply. IC Role / Device Role / Timing Role: Dual op-amp implements filter stages with matched GBW and low bias current to minimize component count and drift. Use Value: 65µA per amplifier enables continuous 24/7 monitoring on CR2032 battery; C-Load™ stability avoids damping resistors that degrade SNR. |
Use Scenario: Signal conditioning for handheld multimeter measuring µA–mA currents via shunt resistor. IC Role / Device Role / Timing Role: Precision I/V converter and buffer with rail-to-rail input to capture full 0–1.8V shunt voltage range. Use Value: ±350µV offset ensures <0.02% reading error at 1.8V full scale; 100dB PSRR rejects switching regulator noise from display backlight. |
| Battery-Powered Sensor Node | Automotive Cabin Monitoring |
Use Scenario: CO₂ sensor analog front-end with NDIR detector, thermistor compensation, and 12-bit SAR ADC interface. IC Role / Device Role / Timing Role: Dual-channel amplifier: one for detector signal, one for temperature sensing - both shut down between readings. Use Value: 7µA shutdown current extends 2-year battery life; 1.8V operation eliminates DC/DC conversion losses in compact enclosure. |
Use Scenario: Occupancy detection using pyroelectric (PIR) sensor with ambient light compensation in vehicle cabin. IC Role / Device Role / Timing Role: Low-noise amplifier for PIR output and rail-to-rail comparator reference buffer. Use Value: 20nV/√Hz noise floor resolves sub-mV PIR signals; –40°C to 85°C rating meets automotive AEC-Q100 Grade 3 requirements. |
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 |
|---|---|---|---|
| TLV9002IDR | Lower GBW (1MHz), higher supply current (60µA typ but 120µA max), no shutdown pin, 3.6V max supply. | Suitable only for non-shutdown, lower-bandwidth (<100kHz) applications with 3.3V supply constraint. | Select TLV9002IDR only if cost sensitivity outweighs need for 6.5MHz BW, shutdown, or 1.8V operation. |
| OPA2313AIDR | Higher offset (±1.25mV), no shutdown, 1.8V–5.5V supply, 1MHz GBW, 50µA supply current. | Acceptable for non-precision, always-on signal chains where 12-bit accuracy is sufficient. | Choose OPA2313AIDR when offset tolerance >1mV is acceptable and PCB space allows larger SOIC-8 vs TSOT-23. |
Compared with TLV9002IDR and OPA2313AIDR, LTC6256CTS8#TRMPBF uniquely combines 6.5MHz GBW, 65µA supply current, active shutdown, and 1.8V operation in a 2.9mm × 1.6mm footprint - making it the only option for high-accuracy, battery-constrained, wide-bandwidth dual-amplifier functions.
Availability
LTC6256CTS8#TRMPBF is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor nodes, and automotive cabin monitoring systems requiring stable component supply and long-term lifecycle support.
Supply support for LTC6256CTS8#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 semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC6256CTS8#TRMPBF belongs to ADI's precision micropower op amp family, designed specifically for ultra-low-power, rail-to-rail signal conditioning in space- and energy-constrained applications such as wearables, remote sensors, and automotive subsystems.
FAQ
What is the maximum capacitive load the LTC6256CTS8#TRMPBF can drive stably in unity-gain configuration?
The LTC6256CTS8#TRMPBF 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 85°C and 1.8V–5.25V supply range, making LTC6256CTS8#TRMPBF ideal for direct interfacing with SAR ADC input capacitors and LC filter outputs.
Does the LTC6256CTS8#TRMPBF support true ground-sensing input operation?
Yes, the LTC6256CTS8#TRMPBF supports true ground-sensing: its inputs operate from V– – 0.1V to V+ + 0.1V, allowing them to accept signals 100mV below ground (e.g., –0.1V with V– = 0V). This enables accurate measurement of transducer outputs referenced to earth or chassis ground without level-shifting circuitry - a key feature confirmed in the LTC6256CTS8#TRMPBF datasheet Absolute Maximum Ratings and Pin Functions sections.
What is the typical turn-on time for the shutdown function of the LTC6256CTS8#TRMPBF?
The LTC6256CTS8#TRMPBF exhibits a typical turn-on time (tON) of 50µs when the SHDN pin transitions from 0V to 5V under 5V supply conditions. This parameter is measured at TA = 25°C with VSUPPLY = 5V and is guaranteed over the full operating temperature range. Fast wake-up makes LTC6256CTS8#TRMPBF suitable for duty-cycled sensor interfaces where microsecond-level responsiveness is required after shutdown.
Can the LTC6256CTS8#TRMPBF operate from a 1.8V single supply while maintaining rail-to-rail output swing?
Yes, the LTC6256CTS8#TRMPBF is fully specified for 1.8V single-supply operation and delivers rail-to-rail output swing - typically within 30mV of both V– (0V) and V+ (1.8V) under 1mA load. This performance is validated in the 1.8V Electrical Characteristics table and Typical Performance Characteristics (e.g., Output Saturation Voltage plots), confirming LTC6256CTS8#TRMPBF's suitability for ultra-low-voltage portable electronics.
What is the input voltage noise density of the LTC6256CTS8#TRMPBF at 1kHz?
The LTC6256CTS8#TRMPBF has a typical input voltage noise density of 20nV/√Hz at 1kHz, as specified in both the 5V and 1.8V Electrical Characteristics tables. This low noise figure, combined with 65µA supply current, gives LTC6256CTS8#TRMPBF best-in-class noise-to-power ratio among dual micropower op amps - critical for amplifying weak signals from piezoresistive or thermal sensors.
LTC6256CTS8#TRMPBF 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC6256CTS8#TRMPBF FAQ
1.How can I place an order for LTC6256CTS8#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6256CTS8#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 LTC6256CTS8#TRMPBF reliable?
The price and inventory of LTC6256CTS8#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6256CTS8#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6256CTS8#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6256CTS8#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6256CTS8#TRMPBF?
LTC6256CTS8#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6256CTS8#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 LTC6256CTS8#TRMPBF?
For technical support, including LTC6256CTS8#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6256CTS8#TRMPBF requirements.
6.How does Aetrix verify that LTC6256CTS8#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6256CTS8#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 LTC6256CTS8#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6256CTS8#TRMPBF?
All LTC6256CTS8#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6256CTS8#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 LTC6256CTS8#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6256CTS8#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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