My Inquiry
My Account
Analog Devices Inc. LTC6269HMS8E-10#PBF
- Part No.:
- LTC6269HMS8E-10#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC6269HMS8E-10#PBF.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,189
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC6269HMS8E-10#PBF from Analog Devices (formerly Linear Technology) is a dual-channel, decompensated, gain-of-10 stable FET-input operational amplifier optimized for ultra-low input bias current (±3 fA typ. at 25°C), ultra-low input capacitance (0.45 pF common-mode), and high-speed transimpedance amplification. It operates from 3.1V to 5.25V, delivers 4 GHz gain-bandwidth product, ±1500 V/µs slew rate, and rail-to-rail output swing - enabling precision photodiode signal conditioning in optical time-of-flight and LIDAR front-ends.
For engineers reviewing the LTC6269HMS8E-10#PBF datasheet, LTC6269HMS8E-10#PBF pinout, LTC6269HMS8E-10#PBF application, or LTC6269HMS8E-10#PBF equivalent, key selection criteria include femtoamp-level input bias stability over –40°C to 125°C, sub-0.5 pF input capacitance for TIA bandwidth optimization, shutdown control timing (360 ns turn-on), and MSOP-8 exposed-pad thermal performance (θJA = 40°C/W).
Technical Context
The LTC6269HMS8E-10#PBF employs a CMOS input buffer with bootstrapped protection diodes and complementary differential input stages to maintain ultra-low bias current across its full input common-mode range (–0.1 V to 4.5 V). Its decompensated architecture requires minimum noise gain of 10 for stability, making it unsuitable for unity-gain configurations without external compensation.
Each channel features independent shutdown control (active-low SHDN pin), rail-to-rail output stage using common-emitter topology, and low-noise design with 4.0 nV/√Hz voltage noise at 1 MHz and 7 fA/√Hz current noise at 100 kHz - enabling high-fidelity amplification of weak photocurrents while minimizing Johnson and 1/f noise contributions in high-impedance sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 4 GHz - enables stable 210 MHz transimpedance amplifier designs with 20 kΩ feedback resistor. |
| Input Bias Current | ±3 fA (typ, 25°C); 4 pA (max, 125°C) - preserves signal integrity in femtoamp photodiode and electrophysiology applications. |
| Input Capacitance | 0.45 pF (common-mode) - minimizes pole formation with feedback networks, critical for >100 MHz TIA bandwidth. |
| Slew Rate | +1500 V/µs / –1000 V/µs - supports fast transient response in pulsed optical detection systems. |
| Supply Range | 3.1 V to 5.25 V - compatible with standard 3.3 V and 5 V industrial and test equipment rails. |
| Operating Temp | –40°C to +125°C - qualified for automotive under-hood and industrial harsh-environment deployment. |
| Quiescent Current | 16.5 mA per amplifier - balances speed and power in battery-constrained portable optical sensors. |
Pinout & Package
The LTC6269HMS8E-10#PBF is housed in an 8-lead plastic MSOP package with exposed pad (pin 9), which must be soldered to PCB ground for optimal thermal performance (θJA = 40°C/W). The exposed pad is internally connected to V–.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA | Channel A output | Rail-to-rail output capable of sourcing/sinking ≥10 mA into 1 kΩ load. |
| –INA | Channel A inverting input | 0.45 pF common-mode input capacitance; voltage range: V– to V+ – 0.5 V. |
| +INA | Channel A non-inverting input | Matched to –INA for CMRR > 64 dB; same voltage range and leakage specs. |
| V– | Negative supply | Internally tied to exposed pad; bypass with 0.1 µF capacitor to ground. |
| V+ | Positive supply | Accepts 3.1 V to 5.25 V total supply; bypass with 0.1 µF capacitor to ground. |
| OUTB | Channel B output | Independent rail-to-rail output; electrically isolated from OUTA except via shared supplies. |
| –INB | Channel B inverting input | Identical specs to –INA; no crosstalk specified between channels. |
| +INB | Channel B non-inverting input | Matched to –INB; supports independent differential configurations per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Femtoamp input bias current | Enables direct connection to high-impedance photodiodes without guard rings or leakage mitigation circuits. |
| 0.45 pF input capacitance | Reduces feedback network phase lag, allowing higher closed-loop bandwidth in TIAs without excessive CF compensation. |
| Gain-of-10 stability | Eliminates need for external compensation in fixed-gain optical receiver stages, simplifying layout and reducing component count. |
| Active-low shutdown | Reduces quiescent current to ≤1.5 mA per channel, enabling duty-cycled operation in portable LIDAR modules. |
| MSOP-8 with exposed pad | Provides 40°C/W thermal resistance - critical for maintaining junction temperature <150°C during sustained 16.5 mA/channel operation. |
Applications
| Photodiode Transimpedance Amplifier | LIDAR Time-of-Flight Receiver |
|---|---|
Use Scenario: Converting weak photocurrents from silicon photomultipliers (SiPM) into measurable voltage signals in medical PET scanners. IC Role / Device Role / Timing Role: Dual-channel TIA front-end with one channel dedicated to signal path and second to reference or background subtraction. Use Value: 0.45 pF input capacitance and 4 GHz GBW enable >200 MHz bandwidth with 20 kΩ RF, improving time resolution below 1 ns. | Use Scenario: Amplifying nanosecond-scale return pulses in automotive long-range LIDAR systems operating at –40°C to 125°C. IC Role / Device Role / Timing Role: High-speed, low-noise dual op amp used in analog front-end for pulse detection and timing discrimination. Use Value: ±3 fA input bias ensures minimal DC offset drift over temperature, preserving accuracy of time-over-threshold measurements. |
| Optical Encoder Signal Conditioning | Electrophysiology Microelectrode Amplifier |
Use Scenario: Boosting low-amplitude sinusoidal signals from diffraction grating-based rotary encoders in factory automation. IC Role / Device Role / Timing Role: Precision dual op amp configured as instrumentation amplifier with matched gain paths. Use Value: 64 dB CMRR and rail-to-rail output allow full utilization of 3.3 V ADC input range without level-shifting circuitry. | Use Scenario: Amplifying extracellular neural spike waveforms (0.1–10 kHz) from glass micropipettes in neuroscience research rigs. IC Role / Device Role / Timing Role: Ultra-high-impedance preamplifier stage with guarded inputs and femtoamp bias control. Use Value: Sub-10 fA input bias prevents electrode polarization and preserves signal fidelity during multi-hour recordings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual FET-input op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4817-2ARMZ | Higher input bias (2 pA max), lower GBW (1 GHz), no shutdown, SOIC-8 package | Not suitable for fA-level photodiode amps; better for general-purpose high-speed buffering | Select when ultra-low bias is not required but lower cost and wider availability are priorities. |
| OPA858IDGKR | Single-channel only, higher input capacitance (1.3 pF), integrated TIA compensation, DFN-8 | Requires two devices for dual-channel use; optimized for 10–100 kΩ TIAs, not ultra-low-CIN designs | Select when designing single-ended TIAs with built-in compensation and lower board space constraints. |
Compared with ADA4817-2ARMZ and OPA858IDGKR, the LTC6269HMS8E-10#PBF uniquely combines dual-channel operation, femtoamp bias, sub-0.5 pF input capacitance, and shutdown capability - making it the only option for compact, thermally efficient, high-bandwidth dual TIA front-ends in harsh environments.
Availability
LTC6269HMS8E-10#PBF is available at Aetrix Electronics and suitable for optical time-of-flight sensing, LIDAR receiver modules, and high-precision photometry systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6269HMS8E-10#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, acquired Linear Technology in 2017 to strengthen its precision amplifier portfolio.
The LTC6269-10 belongs to ADI's ultra-low bias current op amp family, engineered specifically for photonics, scientific instrumentation, and medical diagnostics where femtoamp leakage and sub-picofarad parasitics directly impact measurement validity.
FAQ
What is the maximum operating temperature specification for the LTC6269HMS8E-10#PBF?
The LTC6269HMS8E-10#PBF is fully specified over the –40°C to +125°C operating temperature range, with input bias current guaranteed ≤4 pA and gain-bandwidth product maintained at ≥3.5 GHz across this range. Its MSOP-8 exposed pad package achieves θJA = 40°C/W when properly soldered to PCB ground, supporting reliable operation at junction temperatures up to 150°C.
Does the LTC6269HMS8E-10#PBF require external compensation for stability?
No - the LTC6269HMS8E-10#PBF is decompensated and gain-of-10 stable, meaning it requires minimum noise gain of 10 for unconditional stability. It must not be used in unity-gain or gain-of-2 configurations without external compensation. For transimpedance applications, stability is ensured by selecting appropriate feedback capacitance (CF) based on CIN and RF per the datasheet's damping factor equations.
How does the shutdown feature of the LTC6269HMS8E-10#PBF function electrically?
The LTC6269HMS8E-10#PBF features an active-low SHDN pin (pin 1) with VIH = 1.5 V (enable) and VIL = 0.75 V (disable). When pulled below 0.75 V relative to V–, each amplifier enters high-impedance output state and draws ≤1.5 mA supply current. Turn-on delay is 360 ns; turn-off delay is 183 ns. If left unconnected, the amplifier remains enabled.
Can the LTC6269HMS8E-10#PBF drive a 50 Ω load directly?
The LTC6269HMS8E-10#PBF is not designed for continuous 50 Ω driving: its output short-circuit current is rated at 135 mA peak, but sustained 50 Ω loading at full swing would exceed thermal limits. For 50 Ω interface, use a series 45 Ω resistor to isolate the op amp output while maintaining impedance match - as validated in the datasheet's HD2/HD3 test conditions (RF = 450 Ω, RG = 50 Ω).
What is the input voltage range specification for the LTC6269HMS8E-10#PBF?
The LTC6269HMS8E-10#PBF guarantees input voltage range from V– – 0.2 V to V+ + 0.2 V per absolute maximum ratings, but its usable linear input common-mode range is –0.1 V to 4.5 V (at 5 V supply) or –0.1 V to 2.8 V (at 3.3 V supply), as defined by CMRR specifications. Input pins tolerate up to ±1 mA current with proper external limiting per datasheet Note 2.
LTC6269HMS8E-10#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 1500V/µs
- Gain Bandwidth Product:
- 4 GHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.003 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 16.5mA (x2 Channels)
- Current - Output / Channel:
- 90 mA
- Voltage - Supply Span (Min):
- 3.1 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-EP
LTC6269HMS8E-10#PBF FAQ
1.How can I place an order for LTC6269HMS8E-10#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6269HMS8E-10#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 LTC6269HMS8E-10#PBF reliable?
The price and inventory of LTC6269HMS8E-10#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6269HMS8E-10#PBF is usually 5 days.
3.What payment methods are accepted for LTC6269HMS8E-10#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6269HMS8E-10#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6269HMS8E-10#PBF?
LTC6269HMS8E-10#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6269HMS8E-10#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 LTC6269HMS8E-10#PBF?
For technical support, including LTC6269HMS8E-10#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6269HMS8E-10#PBF requirements.
6.How does Aetrix verify that LTC6269HMS8E-10#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6269HMS8E-10#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 LTC6269HMS8E-10#PBF meets industry standards.
7.What is the process for return or replacement of LTC6269HMS8E-10#PBF?
All LTC6269HMS8E-10#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6269HMS8E-10#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 LTC6269HMS8E-10#PBF part is unused and in its original packaging.
Return procedure for LTC6269HMS8E-10#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6269HMS8E-10#PBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
