My Inquiry
My Account
Analog Devices Inc. LTC6242IGN#PBF
- Part No.:
- LTC6242IGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC6242IGN#PBF.pdf
- Description:
- IC CMOS 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:122
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC6242IGN#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 space-constrained industrial and medical systems. It delivers 18MHz gain bandwidth, 10V/μs slew rate, 550nVP-P 0.1Hz–10Hz noise, 150μV max input offset voltage (–40°C to 85°C), and operates from 2.8V to 6V single supply or ±5.5V dual supply.
For engineers reviewing the LTC6242IGN#PBF datasheet, LTC6242IGN#PBF pinout, LTC6242IGN#PBF application, or LTC6242IGN#PBF equivalent, key selection criteria include guaranteed 1pA max input bias current, quad-channel matching performance, SSOP-16 thermal resistance (θJA = 135°C/W), and H-grade temperature support up to 85°C ambient.
Technical Context
The LTC6242IGN#PBF implements a fully differential CMOS input stage with ultra-low input capacitance (3.5pF differential, 3pF common-mode) and high input resistance (>1012 Ω), enabling stable operation with high-impedance sensors. Its unity-gain-stable architecture supports wideband closed-loop configurations without external compensation.
It features rail-to-rail output swing within 30mV of either supply rail and an input common-mode range extending to the negative rail-critical for single-supply instrumentation front-ends. The device is specified across –40°C to +85°C and guarantees PSRR >80dB and CMRR >78dB over full temperature and supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 18MHz - enables stable unity-gain buffers and 10x gain amplifiers up to ~1.8MHz. |
| Input Offset Voltage | 150μV max (–40°C to 85°C) - ensures ≤0.003% error in 5V full-scale 16-bit ADC interfaces. |
| 0.1Hz–10Hz Noise | 550nVP-P - supports sub-μV-level DC-coupled sensor signal recovery (e.g., thermopiles, strain gauges). | Input Bias Current | 1pA max - preserves signal integrity in >1GΩ source impedance applications (e.g., photodiode transimpedance amps). |
| Supply Range | 2.8V to 6V single supply - compatible with Li-ion, USB, and industrial 3.3V/5V rails without level-shifting. |
| Output Swing | Within 30mV of rails - maximizes dynamic range in low-voltage data acquisition systems. |
| Channel Matching (VOS) | 400μV max (–40°C to 85°C) - supports accurate differential signal processing in quad instrumentation topologies. |
Pinout & Package
LTC6242IGN#PBF is housed in a 16-lead plastic SSOP (GN package) with exposed pad option not present; θJA = 135°C/W. Pin 1 is marked with a dot; pin numbering follows standard SSOP convention (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load; rail-to-rail swing supports full-scale analog output stages. |
| 2 (–IN A) | Inverting input A | High-impedance node; 3.5pF differential capacitance minimizes phase shift in high-Z feedback networks. |
| 3 (+IN A) | Non-inverting input A | Accepts DC-coupled sensor signals down to V– rail; CMRR >78dB rejects supply ripple. |
| 4 (V+) | Positive supply | Connects to main system rail (2.8V–6V); decoupling required within 1cm for stability. |
| 5 (+IN B) | Non-inverting input B | Independent channel input; matches A-channel VOS within 400μV for differential pair use. |
| 6 (–IN B) | Inverting input B | Paired with Pin 5 for matched gain stages; low input current avoids mismatch from leakage paths. |
| 7 (OUT B) | Amplifier B output | Electrically isolated from OUT A; supports independent signal paths on shared substrate. |
| 8 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout best practices. |
| 9 (OUT D) | Amplifier D output | Fourth channel output; identical AC/DC specs to OUT A/B/C-enables 4-channel simultaneous sampling. |
| 10 (–IN D) | Inverting input D | Supports multi-channel sensor arrays (e.g., 4-element photodiode stacks) with matched noise performance. |
| 11 (+IN D) | Non-inverting input D | Enables true quad instrumentation amp configuration when combined with external resistors. |
| 12 (V–) | Negative supply / ground | Reference for single-supply operation; connects to PCB ground plane for lowest noise floor. |
| 13 (+IN C) | Non-inverting input C | Third channel input; allows interleaved or parallel signal processing without cross-talk degradation. |
| 14 (–IN C) | Inverting input C | Matches C-channel offset and drift; supports precision summing or averaging functions. |
| 15 (OUT C) | Amplifier C output | Completes quad set; all four outputs drive 10kΩ loads while maintaining 10V/μs slew rate. |
| 16 (NC) | No connect | Internally unconnected; no routing or stitching required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range in 3.3V systems-reduces need for level-shifting or supply boosting. |
| 1pA max input bias current | Enables direct connection to >1GΩ sources (e.g., pH electrodes, piezoelectric sensors) without signal attenuation. |
| 550nVP-P 0.1Hz–10Hz noise | Supports DC-coupled, low-frequency measurement chains where 1/f noise dominates (e.g., ECG front-ends). |
| Quad-channel matching | VOS match ≤400μV ensures consistent gain and offset across all four amplifiers in multi-channel data loggers. |
| Unity-gain stable | Operates reliably in buffer, follower, and active filter configurations without external compensation components. |
| –40°C to +85°C operation | Qualified for industrial environments including factory automation, motor control feedback, and outdoor instrumentation. |
Applications
| Photodiode Amplifier | Medical Instrumentation |
|---|---|
Use Scenario: High-sensitivity optical detection using reverse-biased silicon photodiodes in portable pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photocurrent to voltage with minimal added noise and offset. Use Value: 1pA input bias current prevents diode leakage-induced gain error; 550nVP-P noise preserves weak signal integrity at DC–10Hz. | Use Scenario: Front-end amplification of biopotential signals (ECG, EEG) in battery-powered diagnostic devices. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail input/output instrumentation amplifier stage with high CMRR. Use Value: Input common-mode range to V– enables single-supply 3.3V designs; 150μV max VOS avoids baseline drift in DC-coupled leads. |
| High-Impedance Transducer Amplifier | Low-Noise Signal Processing |
Use Scenario: Conditioning output from ceramic strain gauges and piezoresistive pressure sensors in structural health monitoring. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with matched quad channels for multi-sensor synchronization. Use Value: 400μV max channel-to-channel VOS match ensures consistent calibration across sensor array outputs. | Use Scenario: Post-processing stage in wideband data acquisition systems requiring <1μV noise floor and >10MHz bandwidth. IC Role / Device Role / Timing Role: Fast-settling (1100ns to 0.1%) gain block driving SAR ADC inputs. Use Value: 18MHz GBW and 10V/μs slew rate support 12-bit accuracy at 1MSPS sampling rates with minimal settling error. |
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 |
|---|---|---|---|
| AD8604ARUZ | Lower GBW (8MHz), higher VOS (300μV max), 0.5pA typical IB but not guaranteed ≤1pA | Less suitable for >500kHz closed-loop bandwidths or ultra-high-Z sensor interfaces | Select when cost sensitivity outweighs bandwidth/noise requirements and 1pA guarantee is unnecessary |
| TSV914IQ4T | Higher noise (1.8μVRMS/√Hz @1kHz), wider VOS spread (1.3mV max), rail-to-rail input only | Not viable for precision DC-coupled photodiode or ECG front-ends due to noise and offset limitations | Consider only for general-purpose quad buffering where sub-μV noise and pA bias are not required |
Compared with AD8604ARUZ and TSV914IQ4T, LTC6242IGN#PBF provides superior 0.1Hz–10Hz noise performance and guaranteed 1pA input bias current-making it uniquely suited for high-precision, high-impedance, low-frequency sensor signal chains where offset drift and current leakage directly impact measurement fidelity.
Availability
LTC6242IGN#PBF is available at Aetrix Electronics and suitable for industrial automation, portable medical diagnostics, and test equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for LTC6242IGN#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 LTC6242IGN#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 space-constrained, battery-operated, and high-reliability instrumentation systems.
FAQ
What is the maximum guaranteed input bias current for LTC6242IGN#PBF over its operating temperature range?
The LTC6242IGN#PBF guarantees ≤1pA maximum input bias current across its full specified operating temperature range of –40°C to +85°C, as confirmed in the Electrical Characteristics table under "IB Input Bias Current" for LTC6242 GN package variants. This specification applies to all four amplifiers and is critical for preserving accuracy in high-impedance sensor interfaces such as photodiode transimpedance amplifiers and pH electrode circuits. The LTC6242IGN#PBF achieves this via proprietary CMOS input stage design with guarded input structures.
Does LTC6242IGN#PBF support true rail-to-rail input operation?
No, LTC6242IGN#PBF features rail-to-rail *output* swing but only extends its input common-mode range to the negative supply rail (V–), not to the positive rail. Per the datasheet, VCM is guaranteed from 0V to 3.5V on 5V supplies and 0V to 1.5V on 3V supplies-meaning the upper limit is typically V+ – 1.5V. This architecture optimizes input stage linearity and PSRR while retaining compatibility with single-supply sensor interfaces where the signal remains near ground. The LTC6242IGN#PBF does not include PMOS input pairs required for full rail-to-rail input capability.
What is the thermal resistance (θJA) of the LTC6242IGN#PBF in its GN (SSOP-16) package?
The LTC6242IGN#PBF in the 16-lead plastic SSOP (GN) package has a junction-to-ambient thermal resistance (θJA) of 135°C/W, as specified in the Pin Configuration section of the datasheet. This value assumes standard JEDEC 2-layer board conditions (1-inch² copper pad). For reliable operation at maximum ambient temperature (85°C), power dissipation must be limited to ≤(150°C – 85°C)/135°C/W ≈ 482mW total (120.5mW per amplifier), consistent with its 2.2mA per amplifier supply current at 5V. The LTC6242IGN#PBF requires adequate PCB copper area and thermal vias for sustained full-load operation.
Can LTC6242IGN#PBF operate from a ±5V dual supply?
Yes, LTC6242IGN#PBF supports dual-supply operation up to ±5.5V (total supply voltage ≤11V), as stated in the Absolute Maximum Ratings and confirmed in HV-version electrical tables. However, the standard LTC6242IGN#PBF variant (non-HV) is characterized and guaranteed for ±5V operation per the "LTC6242C/I" and "LTC6242HVC/I" electrical specifications sections. At ±5V, it delivers enhanced PSRR (>85dB) and CMRR (>83dB), while maintaining 18MHz GBW and 10V/μs slew rate. The LTC6242IGN#PBF is not rated for ±6V or higher-exceeding ±5.5V violates absolute maximum ratings and risks permanent damage.
How many amplifiers does LTC6242IGN#PBF contain, and are their parameters individually specified?
The LTC6242IGN#PBF contains four independent, matched operational amplifiers in a single 16-pin SSOP package. All key parameters-including input offset voltage (150μV max), input bias current (1pA max), noise (550nVP-P), gain bandwidth (18MHz), and slew rate (10V/μs)-are specified for each individual amplifier and verified across the full –40°C to +85°C temperature range. Channel-to-channel matching (e.g., VOS match ≤400μV) is also explicitly characterized, enabling precision differential and multi-channel applications. The LTC6242IGN#PBF datasheet provides separate min/typ/max columns for single-amplifier and matching performance metrics.
LTC6242IGN#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:
- 1.8mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LTC6242IGN#PBF FAQ
1.How can I place an order for LTC6242IGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6242IGN#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 LTC6242IGN#PBF reliable?
The price and inventory of LTC6242IGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6242IGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC6242IGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6242IGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6242IGN#PBF?
LTC6242IGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6242IGN#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 LTC6242IGN#PBF?
For technical support, including LTC6242IGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6242IGN#PBF requirements.
6.How does Aetrix verify that LTC6242IGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6242IGN#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 LTC6242IGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC6242IGN#PBF?
All LTC6242IGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6242IGN#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 LTC6242IGN#PBF part is unused and in its original packaging.
Return procedure for LTC6242IGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6242IGN#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…
