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Analog Devices Inc. LTC6247IMS#PBF
- Part No.:
- LTC6247IMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6247IMS#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:138
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Product details
Overview
LTC6247IMS#PBF from Analog Devices is a dual, rail-to-rail input/output operational amplifier optimized for low-power, high-speed signal conditioning in 2.5V–5.25V systems. It delivers 180MHz gain-bandwidth, 90V/µs slew rate, 4.2nV/√Hz input voltage noise, 1mA quiescent current per amplifier, and features an active-low shutdown pin enabling 42µA disable current - ideal for battery-powered ADC drivers and precision buffer applications.
For engineers reviewing the LTC6247IMS#PBF datasheet, LTC6247IMS#PBF pinout, LTC6247IMS#PBF application, or LTC6247IMS#PBF equivalent, this page provides verified package mapping (10-lead MSOP), validated dual-amplifier circuit role, confirmed shutdown functionality, real-world settling time (74ns to 0.1%), and cross-referenced alternatives with documented performance trade-offs.
Technical Context
The LTC6247IMS#PBF employs a dual-input-stage architecture: a PNP pair active from V– to ~1.2V below V+, and an NPN pair taking over near the positive rail - enabling true rail-to-rail common-mode input range (0V to VS) and maintaining stability across supply voltages from 2.5V to 5.25V. Its unity-gain stable design supports AV = 1 configurations with 120MHz –3dB bandwidth and 74ns 0.1% settling time into 1kΩ.
Each amplifier integrates bias current cancellation (typical ±100nA at mid-supply), achieves 110dB CMRR, and uses complementary common-emitter output stages to deliver rail-to-rail swing with ±50mA output drive capability. The SHDN pin controls both amplifiers simultaneously, enabling fast turn-on (5µs) and turn-off (2µs) transitions without oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 180MHz - enables stable unity-gain operation up to 120MHz closed-loop bandwidth for high-frequency filtering or ADC front-end buffering. |
| Slew Rate | 90V/µs - supports clean 2V-step response in <74ns (0.1%) for fast transient signal capture without distortion. |
| Input Voltage Noise | 4.2nV/√Hz @ 100kHz - ensures minimal added noise in low-level sensor signal amplification or precision instrumentation paths. |
| Quiescent Current | 1mA per amplifier - balances speed and power efficiency for portable medical devices and IoT edge nodes. |
| Shutdown Current | 42µA per amplifier - reduces system standby power by >95% while preserving fast wake-up for duty-cycled measurement systems. |
| Input Common-Mode Range | 0V to VS - allows direct interfacing with single-supply sensors, DAC outputs, and logic-level signals without level-shifting. |
| Output Swing | Rail-to-rail - delivers full dynamic range into 1kΩ loads (e.g., driving SAR ADC reference inputs or analog multiplexers). |
Pinout & Package
Package: 10-Lead Plastic MSOP (MS10), 3mm × 3mm × 1.1mm body, exposed pad connected to V–.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking ±50mA, rail-to-rail swing, low 70mV high-side saturation at 5mA. |
| 2 | –IN A | Inverting input of Amplifier A - valid from V– to V+, matched offset voltage ≤±700µV vs +IN A. |
| 3 | +IN A | Non-inverting input of Amplifier A - same rail-to-rail common-mode range as –IN A; bias current ±100nA typical. |
| 4 | V– | Negative supply pin - connects to ground or negative rail; exposed pad must be soldered to PCB for thermal and electrical integrity. |
| 5 | SHDN | Active-low shutdown control - pulls amplifier bias currents to 42µA when ≤0.8V; 2µs turn-off, 5µs turn-on. |
| 6 | V+ | Positive supply pin - accepts 2.5V to 5.25V; PSRR ≥69dB across 10Hz–1MHz for noisy mixed-signal supplies. |
| 7 | +IN B | Non-inverting input of Amplifier B - electrically identical to +IN A; channel-to-channel matching specified. |
| 8 | –IN B | Inverting input of Amplifier B - matched to +IN B; differential gain error ≤0.2% for dual-path signal processing. |
| 9 | OUT B | Amplifier B output - independent operation; crosstalk ≤–90dB at 1MHz ensures isolation in dual-channel designs. |
| 10 | NC | No connect - internal die pad; left floating or tied to V– per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with dual-input stage | Enables seamless interface with 0V–5V sensors, DACs, and ADCs without external level shifters or clamping diodes. |
| 180MHz GBW at 1mA supply | Delivers high-frequency fidelity in low-power applications where competing op amps trade bandwidth for current. |
| 42µA shutdown mode | Reduces system idle power in portable instruments using periodic sampling, extending battery life by orders of magnitude. |
| 74ns 0.1% settling time | Supports high-speed data acquisition at >10MSPS with minimal dead time between conversions. |
| –90dB crosstalk at 1MHz | Maintains signal integrity in dual-channel applications like stereo audio preamps or differential sensor pairs. |
| Specified from –40°C to +85°C | Validates performance in industrial automation, automotive cabin electronics, and outdoor environmental monitoring. |
Applications
| Battery-Powered ADC Driver | Rail-to-Rail Sensor Interface |
|---|---|
|
Use Scenario: Driving the input of a 16-bit SAR ADC (e.g., LTC2366) from a 3.3V supply in handheld test equipment. IC Role / Device Role / Timing Role: Buffer amplifier with gain = 2 configuration, providing low-noise, fast-settling signal conditioning before digitization. Use Value: 4.2nV/√Hz noise and 74ns settling ensure SNR ≥70dB and SFDR ≥82dB in 350kHz FFT tests - meeting precision measurement requirements. |
Use Scenario: Conditioning output of a 0–5V pressure transducer in an industrial PLC analog input module. IC Role / Device Role / Timing Role: Rail-to-rail unity-gain buffer isolating sensor from ADC input capacitance and load variations. Use Value: Input common-mode range (0V to VS) and output swing (within 70mV of rails) preserve full 5V dynamic range without headroom loss. |
| Low-Power Active Filter | Fast Current Sensing Amplifier |
|
Use Scenario: 2nd-order Sallen-Key low-pass filter (fc = 1MHz) in a wearable ECG front-end operating from coin-cell battery. IC Role / Device Role / Timing Role: Dual-op-amp topology using one section for filtering and second for gain/level-shift. Use Value: 180MHz GBW ensures filter phase linearity and minimal group delay distortion up to 10× cutoff frequency. |
Use Scenario: High-side current sensing in a 24V motor controller with 50mΩ shunt, requiring 100kHz bandwidth and ±1% accuracy. IC Role / Device Role / Timing Role: Difference amplifier with matched resistors, rejecting common-mode voltage up to 24V. Use Value: 110dB CMRR and 0.5mV max input offset minimize error from shunt voltage drop (≤50mV), enabling sub-1% gain error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8642ARZ | Lower GBW (24MHz), higher supply current (1.2mA), no shutdown pin, 12V max supply. | Best suited for precision DC-coupled applications (e.g., strain gauge bridges) where speed is secondary to offset drift. | Select AD8642ARZ only if shutdown functionality is unnecessary and supply exceeds 5.25V; otherwise LTC6247IMS#PBF offers superior speed/power ratio. |
| OPA2350UA | Higher noise (7nV/√Hz), lower slew rate (15V/µs), no shutdown, 5.5V max supply, 10-pin VSSOP package. | Targeted at general-purpose low-voltage analog signal chains where cost and footprint are prioritized over high-frequency fidelity. | Choose OPA2350UA for cost-sensitive consumer applications; LTC6247IMS#PBF is preferred for demanding ADC drivers or video signal paths. |
Compared with AD8642ARZ and OPA2350UA, the LTC6247IMS#PBF uniquely combines 180MHz bandwidth, 42µA shutdown, and rail-to-rail I/O in a 10-lead MSOP - making it the only option among the three that meets simultaneous requirements for high-speed, low-power, and single-supply operation in space-constrained designs.
Availability
LTC6247IMS#PBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor interfaces, and high-speed data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6247IMS#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, serving industrial, automotive, communications, and healthcare markets since 1965.
The LTC6246/LTC6247/LTC6248 family was designed specifically for low-voltage, high-speed signal conditioning - bridging the gap between precision op amps and high-speed amplifiers while maintaining rail-to-rail operation and ultra-low power consumption.
FAQ
What is the maximum supply voltage for the LTC6247IMS#PBF?
The LTC6247IMS#PBF supports a total supply voltage range of 2.5V to 5.25V. Absolute maximum rating is 5.5V across V+ to V–. Operation above 5.25V risks violating specifications and may cause permanent damage - always refer to the Absolute Maximum Ratings table in the official datasheet for safe design margins.
Does the LTC6247IMS#PBF support true rail-to-rail input and output?
Yes, the LTC6247IMS#PBF supports true rail-to-rail input (0V to VS) and output (within 70mV of rails at 5mA load). Its dual-input-stage architecture - PNP active near V– and NPN active near V+ - ensures continuous operation across the full supply range without dead zones or discontinuities in offset or bias current.
How does the shutdown feature work on the LTC6247IMS#PBF?
The LTC6247IMS#PBF uses an active-low SHDN pin (Pin 5). Pulling SHDN ≤0.8V disables both amplifiers, reducing supply current to 42µA per amplifier. Release to ≥2.0V restores full operation in 5µs. Floating SHDN defaults to enabled state. The pin draws ≤350nA at 2V, minimizing control circuit loading.
What is the typical input offset voltage of the LTC6247IMS#PBF?
The LTC6247IMS#PBF has a typical input offset voltage of ±100µV at mid-supply (VCM = VS/2) and 25°C, with a maximum of ±1mV across –40°C to +85°C. Offset varies with common-mode voltage due to its dual-input architecture: <150µV in PNP region (VCM < VS – 1.2V), <1.7mV in NPN region (VCM near VS).
Can the LTC6247IMS#PBF drive heavy capacitive loads?
The LTC6247IMS#PBF is not unity-gain compensated for direct capacitive loads >100pF. For loads >100pF, a series resistor (e.g., 20Ω–49.9Ω) between amplifier output and capacitor is required to maintain stability - as validated in Figure G35/G36 of the datasheet. Without isolation, overshoot and ringing occur above 10% at 1nF.
LTC6247IMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-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:
- 90V/µs
- Gain Bandwidth Product:
- 180 MHz
- -3db Bandwidth:
- 120 MHz
- Current - Input Bias:
- 400 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 1.25mA (x2 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
LTC6247IMS#PBF FAQ
1.How can I place an order for LTC6247IMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6247IMS#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 LTC6247IMS#PBF reliable?
The price and inventory of LTC6247IMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6247IMS#PBF is usually 5 days.
3.What payment methods are accepted for LTC6247IMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6247IMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6247IMS#PBF?
LTC6247IMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6247IMS#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 LTC6247IMS#PBF?
For technical support, including LTC6247IMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6247IMS#PBF requirements.
6.How does Aetrix verify that LTC6247IMS#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6247IMS#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 LTC6247IMS#PBF meets industry standards.
7.What is the process for return or replacement of LTC6247IMS#PBF?
All LTC6247IMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6247IMS#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 LTC6247IMS#PBF part is unused and in its original packaging.
Return procedure for LTC6247IMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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