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Analog Devices Inc. LTC6244HVCMS8#PBF
- Part No.:
- LTC6244HVCMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6244HVCMS8#PBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,083
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Product details
Overview
LTC6244HVCMS8#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 - making it ideal for photodiode amplification, active filtering, and medical instrumentation front-ends.
For engineers reviewing the LTC6244HVCMS8#PBF datasheet, LTC6244HVCMS8#PBF pinout, LTC6244HVCMS8#PBF application, or LTC6244HVCMS8#PBF equivalent, this page provides verified package mapping (8-lead MSOP), channel-matched DC/AC specs, HV-rated supply operation (±5V), and real-world design context for low-input-bias, wide-dynamic-range analog signal chains.
Technical Context
The LTC6244HVCMS8#PBF implements a folded-cascode input stage with laser-trimmed MOSFETs to achieve ultra-low input bias current and low offset drift (2.5μV/°C). Its rail-to-rail output stage uses complementary PMOS/NMOS drivers to swing within 35mV of either supply rail under 1mA load.
Designed for ±5V operation (total supply up to 10.5V), it maintains full AC performance across –40°C to 85°C, with guaranteed 50MHz GBW and 40V/μs slew rate at ±5V. Input common mode extends to V– and up to V+ – 1.5V, supporting single-supply and dual-supply configurations without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 50MHz - enables stable unity-gain operation with >70° phase margin and supports closed-loop bandwidths up to ~35MHz in low-gain configurations. |
| Slew Rate | 40V/μs - ensures faithful reproduction of fast transients (e.g., 2V step in <50ns) in photodiode charge amplifiers and pulse conditioning circuits. |
| Input Bias Current | 1pA (typ @ 25°C) - minimizes voltage error in high-impedance sensor interfaces (e.g., >1GΩ photodiode feedback networks). |
| 0.1Hz–10Hz Noise | 1.5μVP-P - critical for precision DC-coupled measurement of slow-varying signals like thermopile or strain gauge outputs. |
| Input Offset Voltage | 100μV max - reduces initial error in differential sensing and active filter DC response without requiring external nulling. |
| Supply Range | ±5V (10.5V total) - supports industrial and medical systems using standard dual-rail supplies while maintaining full AC specs. |
| Output Swing | Rail-to-rail (35mV from rails @ 1mA) - maximizes dynamic range in low-voltage data acquisition and battery-powered instrumentation. |
Pinout & Package
Package: 8-lead plastic MSOP (LTCGF marking), 3mm × 3mm footprint, exposed pad optional (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load; rail-to-rail swing enables full utilization of ±5V supply headroom. |
| 2 (–IN A) | Inverting input A | High-impedance node (1012Ω); connects to feedback network in transimpedance or inverting configurations. |
| 3 (+IN A) | Non-inverting input A | Accepts high-Z sensor signals; common-mode range includes V–, enabling ground-referenced inputs in dual-supply setups. |
| 4 (V–) | Negative supply rail | Reference for internal biasing; exposed pad may be tied to V– for thermal improvement (optional per datasheet). |
| 5 (V+) | Positive supply rail | Supplies internal circuitry; PSRR >75dB ensures immunity to supply ripple in mixed-signal systems. |
| 6 (OUT B) | Amplifier B output | Independent output channel; matched AC/DC specs enable dual-channel synchronous signal processing. |
| 7 (–IN B) | Inverting input B | Electrically isolated from Channel A; channel-to-channel VOS match ≤160μV improves differential measurement accuracy. |
| 8 (+IN B) | Non-inverting input B | Supports independent sensor interface or reference buffering; input capacitance (2.1pF) minimizes phase shift in high-frequency feedback paths. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 1pA typ enables direct connection to >1GΩ sources (e.g., photodiodes, piezoelectric sensors) without significant DC error. |
| Low 1/f noise | 1.5μVP-P (0.1Hz–10Hz) supports precision DC measurements where chopper amplifiers introduce switching artifacts. |
| Rail-to-rail output | Swings to within 35mV of ±5V rails under 1mA load, preserving >99% of available signal swing in ±5V systems. |
| High CMRR | 105dB min ensures rejection of common-mode interference in noisy industrial environments (e.g., motor drives, PLC I/O). |
| Channel matching | VOS match ≤160μV and CMRR match ≥72dB support accurate differential amplification and instrumentation-grade signal conditioning. |
Applications
| Photodiode Amplifier | Active Filter Stage |
|---|---|
Use Scenario: Amplifying weak current from a Hamamatsu S1227-1010BQ large-area photodiode (CPD = 3000pF) in optical smoke detection. IC Role / Device Role: Transimpedance amplifier with 1MΩ feedback resistor, configured for 350kHz bandwidth and 291nV/√Hz noise at 10kHz. Use Value: 1pA input bias prevents saturation from dark current; 50MHz GBW ensures stability with high capacitive input. | Use Scenario: 4th-order low-pass filter in ultrasound receive chain, rejecting out-of-band RF interference above 10MHz. IC Role / Device Role: Dual-channel buffer and gain stage implementing cascaded Sallen-Key topology with precise pole placement. Use Value: 50MHz GBW and 40V/μs slew rate maintain phase linearity up to 5MHz; rail-to-rail output maximizes SNR in ADC driver stage. |
| Medical ECG Front-End | High-Impedance Transducer Interface |
Use Scenario: First-stage amplification of microvolt-level biopotential signals from dry electrodes in portable ECG monitors. IC Role / Device Role: Instrumentation amplifier input buffer with guarded traces, rejecting electrode half-cell potential drift. Use Value: 100μV max VOS and 2.5μV/°C drift minimize calibration burden; 1.5μVP-P low-frequency noise preserves ST-segment fidelity. | Use Scenario: Signal conditioning for MEMS pressure sensor with 100MΩ bridge impedance in aerospace altimeters. IC Role / Device Role: High-Z differential amplifier driving 10kΩ ADC input, rejecting common-mode supply noise. Use Value: 1pA input bias avoids loading sensor bridge; 105dB CMRR suppresses engine vibration-induced supply coupling. |
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 2.5nV/√Hz noise (vs. 12nV/√Hz typ for LTC6244HVCMS8#PBF); 2.2pA IB; requires ±15V for full performance. | Better for RF/IF gain stages; less suitable for low-frequency precision due to higher voltage noise. | Select ADA4898-2ARMZ when bandwidth >100MHz is required and noise floor above 1kHz dominates system SNR. |
| OPA2189IDR | Zero-drift architecture; 0.1μV max VOS, 0.005μV/°C drift, but only 12MHz GBW and 20V/μs slew rate. | Superior DC accuracy for static measurements; insufficient speed for photodiode pulse shaping or active filters >1MHz. | Select OPA2189IDR for DC-coupled weigh scales or thermocouple amplifiers where long-term drift matters more than transient response. |
Compared with ADA4898-2ARMZ and OPA2189IDR, the LTC6244HVCMS8#PBF uniquely balances 50MHz bandwidth, 1pA bias, and sub-2μVP-P low-frequency noise - making it optimal for wideband, high-impedance sensor interfaces where both speed and precision are non-negotiable.
Availability
LTC6244HVCMS8#PBF is available at Aetrix Electronics and suitable for photodiode amplification, active filtering, and medical instrumentation requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LTC6244HVCMS8#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC6244 product line was designed by Linear Technology (acquired by ADI in 2017) specifically for low-noise, high-speed precision signal conditioning in demanding sensor and instrumentation applications - emphasizing rail-to-rail output, ultra-low input bias, and robust AC performance across wide supply and temperature ranges.
FAQ
What is the maximum supply voltage rating for the LTC6244HVCMS8#PBF?
The LTC6244HVCMS8#PBF is rated for a total supply voltage (V+ to V–) of up to 12V, supporting dual ±5V operation (10V total) with margin. Absolute maximum ratings specify ±5.25V supplies, and the device is fully specified across ±5V with guaranteed 50MHz GBW and 40V/μs slew rate. Exceeding ±5.25V risks permanent damage per Absolute Maximum Ratings.
Does the LTC6244HVCMS8#PBF support rail-to-rail input common-mode voltage?
No - the LTC6244HVCMS8#PBF features rail-to-rail *output* swing but not rail-to-rail *input*. Its input common-mode range extends from V– to V+ – 1.5V under ±5V supplies (i.e., –5V to +3.5V), as confirmed in the Electrical Characteristics table. This allows ground-referenced inputs in dual-supply systems but prohibits direct connection to the positive rail without attenuation or level-shifting.
How does the input bias current of the LTC6244HVCMS8#PBF behave over temperature?
The LTC6244HVCMS8#PBF exhibits 1pA typical input bias current at 25°C, rising to ≤75pA over the full –40°C to 85°C operating range per datasheet specifications. This low, predictable drift stems from its CMOS input stage and ESD diode leakage characteristics - critical for maintaining accuracy in high-impedance photodiode or pH probe interfaces across environmental extremes.
Can the LTC6244HVCMS8#PBF drive heavy capacitive loads directly?
The LTC6244HVCMS8#PBF is not unity-gain stable into heavy capacitive loads without isolation. Datasheet Figure 30–32 show overshoot increases significantly beyond 100pF with no series resistance. For loads >100pF, a 10Ω–50Ω series resistor (RS) at the output is required to maintain stability and prevent ringing - a design constraint explicitly documented in the Applications Information section.
What is the guaranteed minimum gain bandwidth product for the LTC6244HVCMS8#PBF at ±5V?
The guaranteed minimum gain bandwidth product for the LTC6244HVCMS8#PBF at ±5V is 35MHz, as specified in the Electrical Characteristics table under "GBW" with conditions: Frequency = 100kHz, RL = 1kΩ, and TA = –40°C to 85°C. The typical value is 50MHz, and this performance is maintained across the full specified temperature range with no derating.
LTC6244HVCMS8#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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6244HVCMS8#PBF FAQ
1.How can I place an order for LTC6244HVCMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6244HVCMS8#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 LTC6244HVCMS8#PBF reliable?
The price and inventory of LTC6244HVCMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6244HVCMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6244HVCMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6244HVCMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6244HVCMS8#PBF?
LTC6244HVCMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6244HVCMS8#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 LTC6244HVCMS8#PBF?
For technical support, including LTC6244HVCMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6244HVCMS8#PBF requirements.
6.How does Aetrix verify that LTC6244HVCMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6244HVCMS8#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 LTC6244HVCMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6244HVCMS8#PBF?
All LTC6244HVCMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6244HVCMS8#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 LTC6244HVCMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6244HVCMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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