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Analog Devices Inc. LTC6259HMS8#PBF
- Part No.:
- LTC6259HMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6259HMS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,961
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Product details
Overview
LTC6259HMS8#PBF from Analog Devices is a dual, rail-to-rail input/output, micropower operational amplifier in an 8-lead MSOP package, rated for –40°C to 125°C operation. It delivers 1.3MHz gain-bandwidth, 20µA supply current per amplifier, 400µV max input offset voltage, and drives capacitive loads up to 100nF - enabling precision signal conditioning in battery-powered instrumentation and automotive sensor interfaces.
For engineers reviewing the LTC6259HMS8#PBF datasheet, LTC6259HMS8#PBF pinout, LTC6259HMS8#PBF application, or LTC6259HMS8#PBF equivalent, key selection criteria include shutdown current (≤7µA), EMI rejection ratio (45dB at 1GHz), rail-to-rail I/O swing (within 30–100mV of rails), low-noise density (38nV/√Hz), and guaranteed performance across extended temperature range.
Technical Context
The LTC6259HMS8#PBF uses a dual-input-stage architecture (PNP + NPN differential pairs) that enables true rail-to-rail input operation - with common-mode range extending 0.1V beyond both supply rails. Its C-Load™ compensation ensures unity-gain stability with capacitive loads up to 100nF without external compensation.
It integrates active bias current cancellation, achieving ≤75nA max input bias current over 0.2V–(VS–0.2V) common-mode range, and features a dedicated active-low SHDN pin with 0.6V threshold referenced to V–, enabling fast turn-on (152µs) and turn-off (7µs) transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 1.3MHz - supports stable closed-loop operation up to ~100kHz at unity gain with minimal phase margin degradation. |
| Supply Current per Amplifier | 20µA - enables multi-year battery life in always-on sensor front-ends powered by coin cells or energy harvesters. |
| Input Offset Voltage | ±400µV max - ensures <0.1% error in 4V full-scale precision measurement paths without trimming. |
| Rail-to-Rail Output Swing | Within 30mV of V+ and 40mV of V– at no load - preserves dynamic range in 1.8V–5.25V single-supply systems. |
| EMI Rejection Ratio | 45dB at 1GHz - suppresses RF-induced offset shifts in automotive and industrial environments with high ambient RF noise. |
| Shutdown Current | 7µA max - reduces system standby power by >99% versus active mode, critical for duty-cycled sensing nodes. |
| Operating Temperature Range | –40°C to 125°C - qualified for under-hood automotive, industrial control, and harsh-environment portable equipment. |
Pinout & Package
8-Lead Plastic MSOP (MS8) package, 3mm × 3mm × 1.1mm, exposed pad not connected (non-functional). Pin 1 marked by dot; pin numbering follows standard MSOP convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - rail-to-rail capable, sinks/sources ≥4mA, high-impedance in shutdown. |
| 2 | –INA | Inverting input of Amplifier A - accepts common-mode voltage from V– – 0.1V to V+ + 0.1V. |
| 3 | +INA | Noninverting input of Amplifier A - identical voltage range and bias current behavior as –INA. |
| 4 | V– | Negative supply rail - typically ground; must be bypassed with 0.1µF capacitor near pin. |
| 5 | V+ | Positive supply rail - supports 1.8V to 5.25V; bypass with 0.1µF capacitor near pin. |
| 6 | OUTB | Amplifier B output - electrically identical to OUTA, independent channel operation. |
| 7 | –INB | Inverting input of Amplifier B - fully isolated from Amplifier A inputs and outputs. |
| 8 | +INB | Noninverting input of Amplifier B - matched offset and bias performance to +INA. |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ capacitive-load drive | Stable with ≥100nF load in unity-gain buffer configuration - eliminates need for isolation resistors or external compensation. |
| Rail-to-rail input stage | Operates with input voltages 0.1V beyond V+ and V– - enables direct interfacing to sensors with output ranges spanning supply rails. |
| Low EMI sensitivity | 45dB rejection at 1GHz - prevents RF rectification artifacts in high-noise environments like engine control units or motor drives. |
| Active bias current cancellation | ≤75nA max input bias current over 95% of common-mode range - minimizes voltage error in high-Z sensor interfaces (e.g., pH electrodes). |
| Fast shutdown control | 7µs turn-off / 152µs turn-on - supports microsecond-level power gating in time-sliced data acquisition systems. |
Applications
| Automotive Cabin Pressure Sensor Interface | Portable ECG Front-End Amplifier |
|---|---|
|
Use Scenario: Signal conditioning for piezoresistive pressure transducers in HVAC and occupant detection systems. IC Role / Device Role / Timing Role: Dual-channel amplifier: Channel A buffers reference voltage; Channel B amplifies transducer bridge output with 100× gain. Use Value: Rail-to-rail I/O enables full utilization of 3.3V supply; 20µA quiescent current extends battery life in wireless cabin modules. |
Use Scenario: First-stage amplification of low-amplitude, high-impedance biopotential signals from dry electrodes. IC Role / Device Role / Timing Role: Instrumentation-grade dual op amp configured as differential input stage with 100kΩ input impedance and 38nV/√Hz noise floor. Use Value: 400µV max offset ensures baseline stability; C-Load™ drives 22nF anti-aliasing filter directly without ringing. |
| Industrial Wireless Temperature Transmitter | Low-Power Active Filter for Gas Detection |
|
Use Scenario: Amplifying and level-shifting RTD or thermistor bridge outputs for 16-bit ADC digitization in LoRaWAN nodes. IC Role / Device Role / Timing Role: Precision gain stage with programmable offset correction; shutdown pin synchronized to ADC conversion cycle. Use Value: 7µA shutdown current reduces average system power to <1µA during sleep; 125°C rating supports deployment near motors or boilers. |
Use Scenario: 10kHz bandpass filtering of electrochemical sensor outputs in handheld gas analyzers. IC Role / Device Role / Timing Role: Dual op amp implementing 2nd-order active filter topology with unity-gain buffers on input and output. Use Value: 1.3MHz GBW ensures flat passband response; 45dB EMI rejection prevents RF interference from cellular radios corrupting ppm-level readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9002IDR | Lower GBW (1MHz), higher supply current (60µA), no shutdown pin, 400µV offset (typ) | Not suitable for 1.3MHz filter design or ultra-low-power (<25µA) systems requiring shutdown | Choose TLV9002IDR only if cost is primary constraint and 1.3MHz bandwidth is unnecessary. |
| MAX44260ASA+ | Higher supply current (35µA), wider supply range (1.8V–5.5V), 100µV offset (max), no C-Load™ | Requires external isolation resistor for >10nF loads; better for precision DC-coupled apps needing lower offset | Select MAX44260ASA+ when sub-200µV offset is mandatory and capacitive load ≤10nF. |
Compared with TLV9002IDR and MAX44260ASA+, the LTC6259HMS8#PBF uniquely balances 1.3MHz bandwidth, 20µA supply current, integrated shutdown, and guaranteed 100nF capacitive-load drive - making it optimal for battery-powered signal chains requiring both speed and ultra-low power.
Availability
LTC6259HMS8#PBF is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical devices, and industrial wireless sensor networks requiring stable component supply across extended temperature and long product lifecycles.
Supply support for LTC6259HMS8#PBF 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6259HMS8#PBF belongs to the LTC6258/LTC6259/LTC6260 family - designed specifically for micropower, rail-to-rail, wide-supply-voltage signal conditioning in space- and energy-constrained applications where traditional op amps fail.
FAQ
What is the maximum capacitive load the LTC6259HMS8#PBF can drive stably in unity-gain configuration?
The LTC6259HMS8#PBF is specified to drive up to 100nF capacitive load stably in unity-gain buffer 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 series isolation resistors in anti-aliasing or output filtering applications.
Does the LTC6259HMS8#PBF require external components for shutdown functionality?
No, the LTC6259HMS8#PBF includes an integrated active-low SHDN pin (Pin 8 in MS8 package) that requires only a logic-level control signal. Pulling SHDN ≤0.6V relative to V– places the device in shutdown mode (≤7µA total supply current); leaving it unconnected or pulled high to V+ enables normal operation.
How does the LTC6259HMS8#PBF achieve rail-to-rail input operation beyond the supply rails?
The LTC6259HMS8#PBF uses a dual-input-stage architecture: a PNP pair active near V– and an NPN pair active near V+, seamlessly transitioning between them. This allows the input common-mode range to extend 0.1V beyond both V+ and V–, enabling true ground-sensing and interface with sensors whose outputs exceed supply limits.
What is the typical input voltage noise density of the LTC6259HMS8#PBF at 1kHz?
The LTC6259HMS8#PBF has a typical input voltage noise density of 38nV/√Hz at 1kHz, with a 0.1Hz–10Hz peak-to-peak noise of 2µV. This low-noise performance is maintained across the full 1.8V–5.25V supply range and supports high-resolution signal acquisition in low-frequency sensor applications.
Is the LTC6259HMS8#PBF pin-compatible with other members of the LTC6258/LTC6259/LTC6260 family?
No - the LTC6259HMS8#PBF (dual, 8-pin MSOP) is not pin-compatible with the single LTC6258 (6-pin TSOT-23 or DFN) or quad LTC6260 (16-pin MSOP). Pinouts differ across package types and channel counts; PCB layout must be specific to the LTC6259HMS8#PBF's 8-lead MSOP footprint and dual-amplifier pin assignment.
LTC6259HMS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.24V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 20µA (x2 Channels)
- Current - Output / Channel:
- 10 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:
- 8-MSOP
LTC6259HMS8#PBF FAQ
1.How can I place an order for LTC6259HMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6259HMS8#PBF 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 LTC6259HMS8#PBF reliable?
The price and inventory of LTC6259HMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6259HMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6259HMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6259HMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6259HMS8#PBF?
LTC6259HMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6259HMS8#PBF 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 LTC6259HMS8#PBF?
For technical support, including LTC6259HMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6259HMS8#PBF requirements.
6.How does Aetrix verify that LTC6259HMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6259HMS8#PBF 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 LTC6259HMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6259HMS8#PBF?
All LTC6259HMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6259HMS8#PBF, 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 LTC6259HMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6259HMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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