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Analog Devices Inc. LTC6363IDCB#TRMPBF
- Part No.:
- LTC6363IDCB#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6363IDCB#TRMPBF.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,277
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Product details
Overview
LTC6363IDCB#TRMPBF from Analog Devices is a precision, low-power, fully differential amplifier optimized as an ADC driver for SAR converters. It features user-settable gain via external resistors, 2.9nV/√Hz input-referred noise, 2mA max supply current at 5V, and rail-to-rail differential outputs. It operates from ±1.4V to ±5.5V supplies and supports ground-referenced single-ended input conversion in battery-powered instrumentation and high-resolution data acquisition systems.
For engineers reviewing the LTC6363IDCB#TRMPBF datasheet, LTC6363IDCB#TRMPBF pinout, LTC6363IDCB#TRMPBF application, or LTC6363IDCB#TRMPBF equivalent, key selection criteria include its 35MHz –3dB bandwidth, 720ns settling to 18-bit (4ppm), 94dB min CMRR, 100µV max offset voltage, and compatibility with 16-/18-/20-bit SAR ADCs such as the LTC2378-20.
Technical Context
The LTC6363IDCB#TRMPBF implements a fully differential architecture with internal matched feedback nodes enabling precise single-ended-to-differential conversion. Its input common mode range includes ground, and VOCM pin allows flexible output common-mode level setting across 0.5V to 9.5V depending on supply.
It integrates a high-speed, low-noise op-amp core with 500MHz gain-bandwidth product and 75V/µs slew rate, supporting fast settling for high-resolution SAR ADC sampling. Shutdown mode reduces supply current to 20µA at 3V, with 4µs turn-on time for power-gated applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Configuration | User-settable via external resistor network - enables flexible signal scaling without fixed-gain limitations. |
| Input Noise Density | 2.9nV/√Hz - ensures minimal added noise when driving 18–20-bit SAR ADCs at full resolution. |
| Supply Current (Active) | 1.8mA max at 5V - enables ultra-low-power operation in portable and energy-constrained systems. |
| Settling Time | 720ns to 18-bit (4ppm) - meets timing budgets for 1Msps+ SAR ADCs like LTC2378-20. |
| CMRR | 94dB min - rejects common-mode interference in noisy industrial or mixed-signal PCB environments. |
| Input Offset Voltage | 100µV max - preserves DC accuracy in precision sensor front-ends and weigh-scale interfaces. |
| Supply Range | 2.8V to 11V (±1.4V to ±5.5V) - supports single-supply and split-supply configurations with wide headroom. |
Pinout & Package
Package: 8-Lead (2mm × 3mm) Plastic DFN (DCB package). Exposed pad (Pin 9) must be connected to V– for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–IN) | Inverting input | Differential input node; accepts ground-referenced or biased single-ended signals. |
| 2 (VOCM) | Output common-mode control | Sets midpoint voltage of differential output pair; externally driven or self-biased (1.5V at 3V supply). |
| 3 (V+) | Positive supply | Connects to main positive rail; supports up to 11V total supply (V+ – V–). |
| 4 (+OUT) | Positive differential output | Rail-to-rail output delivering half of differential swing; drives +IN of SAR ADC. |
| 5 (+IN) | Non-inverting input | Differential input node; used with –IN to define gain and common-mode rejection path. |
| 6 (SHDN) | Shutdown control | Logic-controlled enable/disable; pulls high (>V+/2 + 1.2V) to activate, low to enter 20µA shutdown. |
| 7 (V–) | Negative supply | Connects to ground or negative rail; exposed pad must tie to this pin for thermal integrity. |
| 8 (–OUT) | Negative differential output | Rail-to-rail output delivering complementary half of differential swing; drives –IN of SAR ADC. |
Key Features
| Feature | Design Value |
|---|---|
| Low power shutdown | 20µA at 3V supply - enables duty-cycled operation in battery-powered data loggers. |
| Input common mode range | Includes ground (0V) at 3V supply - eliminates need for input level-shifting circuitry. |
| Fast settling | 720ns to 18-bit (4ppm) - supports 1Msps+ sampling without aperture uncertainty penalty. |
| High PSRR | 90dB min differential PSRR - maintains gain accuracy despite supply ripple in shared-rail systems. |
| Ultralow distortion | 118dB SFDR at 2kHz, 18VP-P - preserves dynamic range in high-fidelity measurement front-ends. |
Applications
| High-Resolution Data Acquisition | Battery-Powered Instrumentation |
|---|---|
|
Use Scenario: Digitizing low-level sensor outputs (e.g., strain gauges, RTDs) with 20-bit SAR ADCs like LTC2378-20. IC Role / Device Role / Timing Role: Precision single-ended-to-differential converter and ADC driver with rail-to-rail output swing. Use Value: 2.9nV/√Hz noise and 100µV offset ensure >102dB SNR and <101.8dB SINAD at 1Msps. |
Use Scenario: Portable multimeters and handheld analyzers requiring long battery life and high DC accuracy. IC Role / Device Role / Timing Role: Low-power analog front-end amplifier with 20µA shutdown mode and ground-sensing inputs. Use Value: 1.8mA active current and 720ns settling enable 10kSps continuous sampling with sub-ppm linearity. |
| Industrial Process Monitoring | Medical Sensor Interfaces |
|
Use Scenario: Isolated analog input modules in PLCs measuring 4–20mA loop signals with anti-aliasing filtering. IC Role / Device Role / Timing Role: Differential driver stage preceding sigma-delta or SAR ADC, rejecting common-mode noise on long traces. Use Value: 94dB CMRR and 78–90dB input CMRRI suppress EMI/EMC interference in factory-floor environments. |
Use Scenario: Biopotential amplification (ECG, EEG) feeding 18-bit medical-grade ADCs with strict low-noise requirements. IC Role / Device Role / Timing Role: First-stage differential gain block converting single-ended electrode signals to balanced ADC inputs. Use Value: 0.5ppm/°C gain drift and 0.45µV/°C offset drift maintain calibration stability over patient-room temperature ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4940-1ACPZ-R7 | Fixed unity-gain configuration; 1.8nV/√Hz noise; 3.3mA supply current; no shutdown pin. | Optimized for fixed-gain, higher-speed (500MHz GBW) applications; lacks user-configurable gain and low-power shutdown. | Select when lowest noise and highest speed are prioritized over power savings and gain flexibility. |
| THS4561IRGET | 10.5nV/√Hz noise; 4.2mA supply current; 1.5V to 5.5V supply; integrated RG/RF options. | Designed for lower-voltage, cost-sensitive systems; higher noise limits use in >18-bit systems. | Select for 3.3V-only designs where moderate noise and simplified layout outweigh ultra-precision needs. |
Compared with ADA4940-1ACPZ-R7 and THS4561IRGET, the LTC6363IDCB#TRMPBF uniquely balances ultra-low noise (2.9nV/√Hz), user-defined gain, and micropower shutdown (20µA), making it optimal for portable, high-resolution, and configurable analog front-ends.
Availability
LTC6363IDCB#TRMPBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, battery-powered instrumentation, and industrial process monitoring requiring stable component supply and guaranteed long-term availability.
Supply support for LTC6363IDCB#TRMPBF 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets.
The LTC6363 family was designed specifically as precision, low-power differential ADC drivers for SAR converters - emphasizing noise, offset, settling, and power efficiency in high-resolution measurement systems.
FAQ
What is the operating temperature range for the LTC6363IDCB#TRMPBF?
The LTC6363IDCB#TRMPBF is rated for operation from –40°C to +85°C. This industrial temperature grade is confirmed in the order information table and absolute maximum ratings section of the official Analog Devices datasheet Rev. C. The 'I' suffix in the part number denotes the –40°C to 85°C range, distinct from the 'H' grade (–40°C to 125°C).
Does the LTC6363IDCB#TRMPBF require external resistors to set gain?
Yes, the LTC6363IDCB#TRMPBF is the base member of the LTC6363 family and requires four external resistors to configure gain. Unlike the LTC6363-1 or LTC6363-2 variants, it does not contain internal matched gain-setting resistors - enabling full design flexibility but requiring careful layout for matching and thermal tracking.
Can the LTC6363IDCB#TRMPBF drive the LTC2378-20 20-bit SAR ADC?
Yes, the LTC6363IDCB#TRMPBF is explicitly validated to drive the LTC2378-20, as shown in the "Typical Application" diagram and FFT performance plots (HD2 = –119.5dBc, SFDR = 118.3dB). Its 720ns settling time to 18-bit, 2.9nV/√Hz noise, and rail-to-rail output swing meet all critical interface requirements for that ADC.
What is the function of the VOCM pin on the LTC6363IDCB#TRMPBF?
The VOCM pin on the LTC6363IDCB#TRMPBF sets the common-mode voltage of the differential output pair. It can be driven externally (e.g., by an ADC reference or DAC) or left floating to self-bias - at 3V supply, it defaults to ~1.5V. This pin decouples output level setting from input common-mode constraints, simplifying level-shifting in mixed-supply systems.
Is the exposed thermal pad on the DCB package required to be connected?
Yes, the exposed pad (Pin 9) of the LTC6363IDCB#TRMPBF's 8-lead DFN package must be connected to V–. Per the datasheet pin configuration diagram and thermal specs (θJA = 64°C/W), this connection is mandatory for both thermal dissipation and electrical stability - failure to do so risks exceeding junction temperature limits and degrading PSRR or offset performance.
LTC6363IDCB#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential, Rail-to-Rail
- Slew Rate:
- 75V/µs
- Gain Bandwidth Product:
- 500 MHz
- -3db Bandwidth:
- 35 MHz
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 25 µV
- Current - Supply:
- 1.9mA
- Current - Output / Channel:
- 55 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x3)
LTC6363IDCB#TRMPBF FAQ
1.How can I place an order for LTC6363IDCB#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6363IDCB#TRMPBF 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 LTC6363IDCB#TRMPBF reliable?
The price and inventory of LTC6363IDCB#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6363IDCB#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6363IDCB#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6363IDCB#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6363IDCB#TRMPBF?
LTC6363IDCB#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6363IDCB#TRMPBF 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 LTC6363IDCB#TRMPBF?
For technical support, including LTC6363IDCB#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6363IDCB#TRMPBF requirements.
6.How does Aetrix verify that LTC6363IDCB#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6363IDCB#TRMPBF 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 LTC6363IDCB#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6363IDCB#TRMPBF?
All LTC6363IDCB#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6363IDCB#TRMPBF, 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 LTC6363IDCB#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6363IDCB#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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