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Analog Devices Inc. LTC6242HVCGN#PBF
- Part No.:
- LTC6242HVCGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC6242HVCGN#PBF.pdf
- Description:
- IC CMOS 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,471
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Product details
Overview
LTC6242HVCGN#PBF from Analog Devices (formerly Linear Technology) is a quad, rail-to-rail output, low-noise CMOS operational amplifier optimized for precision signal conditioning in high-impedance sensor interfaces. It delivers 18MHz gain bandwidth, 10V/μs slew rate, 550nVP-P 0.1Hz–10Hz noise, 125μV max input offset voltage, and operates on supplies up to ±5V - enabling high-fidelity amplification in medical instrumentation and photodiode front-ends.
For engineers reviewing the LTC6242HVCGN#PBF datasheet, LTC6242HVCGN#PBF pinout, LTC6242HVCGN#PBF application, or LTC6242HVCGN#PBF equivalent, key selection criteria include guaranteed ±5V operation, 1pA max input bias current at 25°C, H-grade temperature range (–40°C to 125°C), rail-to-rail output swing within 30mV of rails, and quad-channel integration in 16-pin SSOP packaging.
Technical Context
The LTC6242HVCGN#PBF implements a unity-gain-stable CMOS input stage with ultra-low input bias current (≤1pA max) and low input capacitance (3.5pF differential), making it suitable for charge-sensitive and high-Z transducer applications. Its architecture supports stable operation across supply voltages from 2.8V to ±5.5V and maintains rail-to-rail output swing down to 30mV from each rail under load.
It features matched channel performance (e.g., ≤325μV VOS match over –40°C to 85°C), 83dB min CMRR over –5V to +3.5V common-mode range, and 104dB PSRR - enabling accurate differential signal processing in noisy industrial environments without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 18MHz - enables stable closed-loop gain ≥10 at 1.8MHz or ≥2 at 9MHz for anti-aliasing or active filtering. |
| Input Offset Voltage | 125μV max - ensures ≤0.25% error in 50mV full-scale sensor outputs without calibration. |
| 0.1Hz–10Hz Noise | 550nVP-P - critical for DC-coupled EEG, ECG, and strain gauge amplifiers requiring sub-μV resolution. |
| Input Bias Current | 1pA max (25°C) - preserves signal integrity in photodiode and piezoelectric sensor circuits with >1GΩ source impedances. |
| Supply Range | ±5V max (HV version) - supports bipolar signal conditioning in industrial control and test equipment without dual-supply scaling. |
| Output Swing | Within 30mV of rails - maximizes dynamic range in 3.3V or ±5V systems, reducing need for level-shifting. |
| Operating Temperature | –40°C to 125°C (H-grade) - qualified for under-hood automotive and industrial motor drive feedback loops. |
Pinout & Package
The LTC6242HVCGN#PBF is housed in a 16-lead plastic SSOP (GN) package with exposed pad (not electrically connected). Pin 1 is marked by a dot or notch; the package footprint matches JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load; rail-to-rail capable with 10mA sink/source capability. |
| 2 (–IN A) | Inverting input A | High-impedance node (1012Ω); sensitive to PCB leakage and guarding requirements. |
| 3 (+IN A) | Non-inverting input A | Accepts common-mode signals from –5V to +3.5V when powered at ±5V. |
| 4 (V+) | Positive supply | Connects to +5V (or +6V max); decoupling capacitor required within 1cm. |
| 5 (+IN B) | Non-inverting input B | Independent input for second amplifier; shares no internal nodes with Channel A. |
| 6 (–IN B) | Inverting input B | Matched to Channel A for differential pair configurations (e.g., instrumentation amps). |
| 7 (OUT B) | Amplifier B output | Electrically isolated from OUT A; supports independent feedback networks. |
| 8 (NC) | No connect | Not bonded; leave unconnected and unstubbed to avoid parasitic coupling. |
| 9 (OUT D) | Amplifier D output | Fourth output; identical AC/DC specs to OUT A; usable as buffer or summing node. |
| 10 (–IN D) | Inverting input D | Supports multi-channel synchronous sampling; VOS match ≤400μV vs. Channel A. |
| 11 (+IN D) | Non-inverting input D | Valid common-mode range extends to negative rail - enables single-supply sensor biasing. |
| 12 (V–) | Negative supply | Connects to –5V (or –6V max); ties to exposed pad (optional thermal connection). |
| 13 (+IN C) | Non-inverting input C | Third channel input; CMRR ≥78dB ensures rejection of shared supply noise. |
| 14 (–IN C) | Inverting input C | Matched to other channels for multi-stage filtering or programmable gain stages. |
| 15 (OUT C) | Amplifier C output | Full-swing output; supports 1kΩ load at 10V/μs slew without instability. |
| 16 (NC) | No connect | Unused bond pad; must remain floating per datasheet layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Swings within 30mV of V+ and V– rails at 5mA load - preserves >98% of supply voltage headroom in low-voltage systems. |
| Ultra-low input bias current | ≤1pA max at 25°C - eliminates significant error in femtoamp-level photodiode or ion-selective electrode circuits. |
| Low 1/f noise | 550nVP-P (0.1Hz–10Hz) - enables stable DC baseline in biopotential measurement without notch filtering. |
| High CMRR & PSRR | ≥83dB CMRR and ≥104dB PSRR - rejects power supply ripple and ground bounce in mixed-signal PCBs. |
| H-grade temperature rating | Specified from –40°C to 125°C - eliminates derating concerns in automotive engine control or industrial PLC modules. |
| Quad-channel integration | Four matched amplifiers in one SSOP-16 - reduces board area by ~60% vs. discrete SO-8 op-amps in multi-channel data acquisition. |
Applications
| Photodiode Amplifier | Medical ECG Front-End |
|---|---|
Use Scenario: Amplifying weak current from silicon PIN photodiodes in spectrophotometers or laser power meters. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with 1pA input bias current minimizing dark-current error and 550nVP-P low-frequency noise preserving signal fidelity. Use Value: Enables detection of sub-picoamp photocurrents with <10nA full-scale range and <0.5% total harmonic distortion at 1kHz. | Use Scenario: Conditioning low-amplitude, high-impedance biopotential signals from dry electrodes in portable ECG monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with rail-to-rail output swing and 125μV max VOS to minimize baseline drift. Use Value: Supports 10-bit ADC resolution without offset trimming while maintaining >100dB common-mode rejection at 50/60Hz. |
| Industrial Pressure Sensor Interface | High-Voltage Data Acquisition Channel |
Use Scenario: Signal conditioning for piezoresistive bridge sensors in hydraulic pressure transmitters operating at 125°C ambient. IC Role / Device Role / Timing Role: Precision differential amplifier with matched VOS (≤325μV) and H-grade temp range ensuring stable zero-point calibration over temperature. Use Value: Reduces thermal zero-shift error to <0.05% FS/°C, eliminating need for on-board temperature compensation circuitry. | Use Scenario: Isolated analog input stage in ±5V-powered industrial DAQ modules interfacing to ±10V field sensors. IC Role / Device Role / Timing Role: Level-shifting and buffering amplifier supporting ±5V supplies with 18MHz GBW for anti-aliasing filter implementation. Use Value: Allows direct interface to 16-bit SAR ADCs with <1LSB integral nonlinearity error across full input range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4522-4ARUZ | Zero-drift architecture; 0.3μV max VOS, but 5.6MHz GBW and higher supply current (1.2mA/ch). | Better DC accuracy for µV-level DC measurements; less suitable for >1MHz signal paths. | Select when long-term VOS drift (<50nV/°C) matters more than bandwidth or power. |
| OPA2189IDR | Zero-drift, 2MHz GBW, 5.6nV/√Hz noise at 1kHz, 0.005µV/°C drift; requires ≥4.5V supply. | Superior drift performance for precision weigh scales; lacks ±5V operation and 0.1Hz–10Hz noise spec. | Prefer for battery-powered portable instruments needing ultra-low drift, not high-speed or wide-supply applications. |
Compared with ADA4522-4ARUZ and OPA2189IDR, the LTC6242HVCGN#PBF offers superior small-signal bandwidth (18MHz vs. ≤5.6MHz), guaranteed ±5V operation, and industry-leading 0.1Hz–10Hz noise - making it optimal for high-fidelity, wide-dynamic-range sensor interfaces where speed and low-frequency noise dominate design constraints.
Availability
LTC6242HVCGN#PBF is available at Aetrix Electronics and suitable for medical instrumentation, industrial sensor signal chains, and high-reliability test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6242HVCGN#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 LTC6242HVCGN#PBF belongs to ADI's legacy Linear Technology precision op amp portfolio, engineered specifically for low-noise, low-input-bias, rail-to-rail signal conditioning in demanding sensor and instrumentation applications.
FAQ
What is the maximum supply voltage for the LTC6242HVCGN#PBF?
The LTC6242HVCGN#PBF supports a total supply voltage of up to 12V, enabling operation on ±5V supplies (10V total) with 2V headroom. Absolute maximum ratings specify V+ to V– ≤12V; exceeding this risks permanent damage. The HV suffix explicitly denotes enhanced high-voltage capability versus standard LTC6242 variants rated only to 7V.
Does the LTC6242HVCGN#PBF require external compensation for unity-gain stability?
No, the LTC6242HVCGN#PBF is internally compensated for unity-gain stability across its full operating range. It drives capacitive loads up to 5pF without oscillation and maintains ≥45° phase margin with 1kΩ load and 5pF capacitive feedback - verified in the datasheet's Gain Bandwidth vs. Temperature and Phase Margin plots.
What is the input common-mode voltage range of the LTC6242HVCGN#PBF when operated on ±5V supplies?
When powered on ±5V supplies, the LTC6242HVCGN#PBF guarantees an input common-mode voltage range of –5V to +3.5V, as specified in the HV-grade electrical characteristics table. This allows direct interfacing to bipolar sensor outputs and accommodates inputs extending to the negative rail - a key advantage over many rail-to-rail input op amps limited to V– + 0.1V.
How does the LTC6242HVCGN#PBF's 0.1Hz–10Hz noise performance compare to standard precision op amps?
The LTC6242HVCGN#PBF achieves 550nVP-P 0.1Hz–10Hz noise - significantly lower than typical precision op amps (e.g., OP27: 2.3μVP-P; ADA4077: 0.75μVP-P). This enables high-resolution DC measurements in ECG, pH meters, and thermopile amplifiers where 1/f noise dominates system error budgets.
Is the LTC6242HVCGN#PBF pin-compatible with other packages in the LTC6242 family?
No - the LTC6242HVCGN#PBF uses a 16-pin SSOP (GN) package, while the LTC6242HVCDHC#PBF uses a 16-pin DFN (DHC) package with different pinout and thermal pad configuration. Neither is pin-compatible with the SO-8 or DFN variants of the single/dual versions (LTC6240/LTC6241). Board redesign is required when changing packages.
LTC6242HVCGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.5 pA
- Voltage - Input Offset:
- 60 µV
- Current - Supply:
- 2.5mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LTC6242HVCGN#PBF FAQ
1.How can I place an order for LTC6242HVCGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6242HVCGN#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 LTC6242HVCGN#PBF reliable?
The price and inventory of LTC6242HVCGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6242HVCGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC6242HVCGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6242HVCGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6242HVCGN#PBF?
LTC6242HVCGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6242HVCGN#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 LTC6242HVCGN#PBF?
For technical support, including LTC6242HVCGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6242HVCGN#PBF requirements.
6.How does Aetrix verify that LTC6242HVCGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6242HVCGN#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 LTC6242HVCGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC6242HVCGN#PBF?
All LTC6242HVCGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6242HVCGN#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 LTC6242HVCGN#PBF part is unused and in its original packaging.
Return procedure for LTC6242HVCGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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