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Analog Devices Inc. LTC6244HVIMS8#PBF
- Part No.:
- LTC6244HVIMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6244HVIMS8#PBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:482
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Product details
Overview
LTC6244HVIMS8#PBF from Analog Devices (formerly Linear Technology) is a dual, high-speed, rail-to-rail output CMOS operational amplifier optimized for low-noise, high-precision signal conditioning in ±5V supply systems. It delivers 50MHz gain bandwidth, 40V/μs slew rate, 1pA input bias current, 1.5μVP-P (0.1Hz–10Hz) noise, and 100μV max input offset voltage - enabling photodiode amplification, charge-coupled signal processing, and medical front-end instrumentation.
For engineers reviewing the LTC6244HVIMS8#PBF datasheet, LTC6244HVIMS8#PBF pinout, LTC6244HVIMS8#PBF application, or LTC6244HVIMS8#PBF equivalent, key selection criteria include its HV-rated ±5.25V operation, MS8 package thermal performance (θJA = 250°C/W), guaranteed 2.5μV/°C offset drift, and validated rail-to-rail output swing within 35mV of either supply rail under 1mA load.
Technical Context
The LTC6244HVIMS8#PBF employs a folded-cascode input stage with laser-trimmed MOSFETs to achieve ultra-low input bias current and low 1/f noise. Its differential drive generator enables true rail-to-rail output swing while maintaining unity-gain stability across 2.8V to ±5.25V supplies.
Designed specifically for the HV variant, it extends input common-mode range to –5V (relative to V–) and guarantees full AC performance at ±5V, unlike standard LTC6244 variants rated only up to 7V total supply. CMRR exceeds 80dB over –5V ≤ VCM ≤ 3.5V, supporting high-impedance transducer interfaces in bipolar supply environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 50MHz - supports stable closed-loop gain ≥10 at 5MHz or ≥2 at 25MHz for active filter and wideband sensor interface designs. |
| Slew Rate | 40V/μs - enables clean 3VP-P output at ≥3.7MHz full-power bandwidth into 1kΩ load without distortion. |
| Input Offset Voltage | 220μV max (–40°C to 85°C) - ensures <±0.5mV error in 10V-scale precision amplification without trimming. |
| 0.1Hz–10Hz Noise | 1.5μVP-P - critical for DC-coupled photodiode and piezoelectric sensor front-ends where low-frequency drift dominates error budget. |
| Input Bias Current | 1pA typ at 25°C - preserves signal integrity in >1GΩ source impedance applications like electrophysiology electrodes or radiation detectors. |
| Supply Range | ±2.8V to ±5.25V - allows direct interfacing with ±5V industrial control buses and legacy analog signal chains without level-shifting. |
| Output Swing | Within 35mV of rails at 1mA - maximizes dynamic range in low-voltage data acquisition systems using 10-bit+ ADCs. |
Pinout & Package
Package: 8-Lead Plastic MSOP (MS8), 3mm × 3mm footprint, exposed pad connected to V– (PCB connection optional). Thermal resistance θJA = 250°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Amplifier A output | Rail-to-rail capable; drives loads down to 1kΩ while maintaining 50MHz GBW. |
| 2 - –IN A | Inverting input A | High-impedance node (1012Ω); accepts signals from V– to (V+ – 1.5V) without phase inversion. |
| 3 - +IN A | Non-inverting input A | Matches –IN A in offset, drift, and noise; enables precision differential sensing with matched pair. |
| 4 - V– | Negative supply rail | Reference for exposed pad; must be solidly connected for thermal and EMI performance. |
| 5 - V+ | Positive supply rail | Accepts up to +5.25V; PSRR >75dB ensures immunity to digital supply noise coupling. |
| 6 - OUT B | Amplifier B output | Independent channel; identical AC specs to OUT A - supports dual-path signal processing. |
| 7 - –IN B | Inverting input B | Channel-to-channel VOS match ≤250μV (–40°C to 85°C) enables accurate instrumentation amplifier configurations. |
| 8 - +IN B | Non-inverting input B | Matched to +IN A; supports common-mode rejection >78dB when used with matched external resistors. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 1pA typ enables use with >10GΩ feedback networks in photodiode TIA designs without significant DC error. |
| Low 1/f noise floor | 1.5μVP-P (0.1Hz–10Hz) avoids baseline wander in EEG/ECG front-ends where chopper amps introduce switching artifacts. |
| Rail-to-rail output stage | Swings within 35mV of V+ and V– at 1mA load - preserves >99% of 10V full-scale range in ±5V systems. |
| Extended input common-mode range | VCM = –5V to +3.5V (vs V–) supports direct interfacing with bipolar sensors and DAC outputs without level shifters. |
| High CMRR & PSRR | 80dB CMRR and 75dB PSRR minimize error from ground bounce and supply ripple in mixed-signal PCB layouts. |
| Unity-gain stable | No external compensation required - simplifies layout and reduces bill-of-materials for gain-of-1 buffer and active filter stages. |
Applications
| Photodiode Amplification | Medical Instrumentation |
|---|---|
|
Use Scenario: Amplifying weak current from Hamamatsu S1227-1010BQ large-area photodiode (CPD = 3000pF) in optical blood oximetry. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1MΩ feedback resistor; sets system bandwidth at 350kHz and contributes 291nV/√Hz noise at 10kHz. Use Value: 1pA input bias current prevents saturation from dark current; rail-to-rail output drives 12-bit SAR ADC directly. |
Use Scenario: Front-end amplification of low-amplitude biopotential signals (e.g., EEG scalp electrodes) with >1GΩ source impedance. IC Role / Device Role / Timing Role: First-stage gain block with selectable gain (1–100); provides 50MHz bandwidth for artifact rejection filtering. Use Value: 1.5μVP-P 0.1Hz–10Hz noise ensures sub-μV baseline stability; 2.5μV/°C drift avoids recalibration during patient temperature shifts. |
| Active Filter Design | Industrial Sensor Interface |
|
Use Scenario: 4th-order Butterworth anti-aliasing filter preceding 1MSPS precision ADC in vibration monitoring system. IC Role / Device Role / Timing Role: Dual op-amp implementing two 2-pole sections; each section uses unity-gain stable topology with 50MHz GBW headroom. Use Value: 40V/μs slew rate prevents slew-induced distortion on 5VP-P 100kHz sinusoidal inputs; low CIN (2.1pF) minimizes Q-factor degradation. |
Use Scenario: Conditioning output of ±5V-output industrial pressure transducer with mV/V sensitivity and 100kΩ output impedance. IC Role / Device Role / Timing Role: Precision buffer and level shifter converting bipolar sensor output to 0–5V for microcontroller ADC input. Use Value: ±5.25V supply rating matches transducer rail; 100μV max VOS limits zero-point error to <0.01% FS; CMRR >80dB rejects common-mode noise from motor drives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4898-2ARMZ | Higher 1GHz GBW but 2.4nV/√Hz input noise (vs 8nV/√Hz typ for LTC6244HVIMS8#PBF); 2.5pA IB; requires ±12V min supply. | Better for RF/IF gain stages; unsuitable for low-noise DC-coupled sensor amps due to higher noise floor. | Select ADA4898-2ARMZ only when bandwidth >200MHz is required and noise <5nV/√Hz is not critical. |
| OPA211IDR | Lower 1.1nV/√Hz noise but only 45MHz GBW; 1.2pA IB; single-supply rated (2.7–36V); no HV ±5V guarantee. | Preferred for ultra-low-noise DC precision; less suitable for fast settling in bipolar ±5V data acquisition. | Choose OPA211IDR when 0.1Hz–10Hz noise <1μVP-P is mandatory and 50MHz bandwidth is excessive. |
Compared with ADA4898-2ARMZ and OPA211IDR, the LTC6244HVIMS8#PBF uniquely balances 50MHz bandwidth, 1.5μVP-P low-frequency noise, and guaranteed ±5V operation in an MSOP package - making it optimal for cost-sensitive, space-constrained industrial and medical signal chains requiring both speed and precision.
Availability
LTC6244HVIMS8#PBF is available at Aetrix Electronics and suitable for photodiode amplification, medical instrumentation, and industrial sensor interface applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC6244HVIMS8#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.
The LTC6244HVIMS8#PBF belongs to ADI's precision high-speed op amp product line, engineered for applications demanding low noise, rail-to-rail output, and robust operation in bipolar supply environments - especially photodiode, transducer, and medical front-end signal chains.
FAQ
What is the maximum supply voltage rating for the LTC6244HVIMS8#PBF?
The LTC6244HVIMS8#PBF is rated for total supply voltage up to 12V, supporting operation from ±2.8V to ±5.25V. This HV designation distinguishes it from the standard LTC6244 (max 7V total), enabling reliable use in legacy ±5V systems without derating. Absolute maximum ratings specify V+ to V– ≤12V, with indefinite short-circuit capability when heatsinked.
Does the LTC6244HVIMS8#PBF support rail-to-rail input common-mode voltage?
The LTC6244HVIMS8#PBF does not support rail-to-rail input common-mode range. Its input common-mode voltage is specified from V– to (V+ – 1.5V) - i.e., –5V to +3.5V when operated at ±5V supplies. Exceeding this range by more than ~1V below V+ may cause instability; however, the input stage fully extends to the negative rail (V–), enabling true single-supply sensor interfacing with proper biasing.
What is the typical input capacitance of the LTC6244HVIMS8#PBF and why does it matter?
The LTC6244HVIMS8#PBF has 2.1pF common-mode and 3.5pF differential-mode input capacitance. This low value minimizes interaction with high-impedance sources (e.g., photodiodes, piezoelectrics) and reduces Q-factor degradation in active filter designs. In transimpedance amplifiers, it directly impacts phase margin and stability - necessitating careful compensation when CPD exceeds ~100pF.
How does the LTC6244HVIMS8#PBF perform in terms of channel-to-channel matching?
The LTC6244HVIMS8#PBF guarantees channel-to-channel input offset voltage match ≤250μV over –40°C to 85°C, CMRR match ≥78dB, and PSRR match ≥73dB. These matching specifications enable high-accuracy instrumentation amplifier topologies and dual-path synchronous sampling without per-channel calibration - critical for differential sensor interfaces and precision data acquisition.
Is the LTC6244HVIMS8#PBF suitable for driving ADC inputs directly?
Yes - the LTC6244HVIMS8#PBF is well-suited for direct ADC driving. Its rail-to-rail output swings within 35mV of both supply rails at 1mA, delivering >99% of full-scale range into typical 10kΩ–100kΩ ADC inputs. With 50MHz GBW and 40V/μs slew rate, it settles 2V steps in <330ns (0.1%), supporting >1MSPS SAR and sigma-delta converters without external buffering.
LTC6244HVIMS8#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:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 40V/µs
- Gain Bandwidth Product:
- 50 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 6.25mA (x2 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6244HVIMS8#PBF FAQ
1.How can I place an order for LTC6244HVIMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6244HVIMS8#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 LTC6244HVIMS8#PBF reliable?
The price and inventory of LTC6244HVIMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6244HVIMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6244HVIMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6244HVIMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6244HVIMS8#PBF?
LTC6244HVIMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6244HVIMS8#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 LTC6244HVIMS8#PBF?
For technical support, including LTC6244HVIMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6244HVIMS8#PBF requirements.
6.How does Aetrix verify that LTC6244HVIMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6244HVIMS8#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 LTC6244HVIMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6244HVIMS8#PBF?
All LTC6244HVIMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6244HVIMS8#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 LTC6244HVIMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6244HVIMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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