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Analog Devices Inc. LTC6362CDD#TRPBF
- Part No.:
- LTC6362CDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6362CDD#TRPBF.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:11,276
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Product details
Overview
LTC6362CDD#TRPBF from Analog Devices (formerly Linear Technology) is a precision, low-power, fully differential op amp optimized as a SAR ADC driver with rail-to-rail input/output swing. It delivers 200 µV max input-referred offset voltage, 3.9 nV/√Hz input noise, 180 MHz gain-bandwidth product, and 550 ns settling to 18-bit (4 ppm) accuracy for 8 VP-P differential output - enabling high-fidelity signal conditioning in battery-powered instrumentation and industrial data acquisition systems.
For engineers reviewing the LTC6362CDD#TRPBF datasheet, LTC6362CDD#TRPBF pinout, LTC6362CDD#TRPBF application, or LTC6362CDD#TRPBF equivalent, key selection criteria include its 1 mA active supply current, 70 µA shutdown mode, 2.8 V to 5.25 V single-supply operation, guaranteed 0°C to 70°C performance, and compatibility with 16-/18-bit SAR ADCs such as the LTC2379-18.
Technical Context
The LTC6362CDD#TRPBF implements a fully differential architecture with independent common-mode feedback via the VOCM pin, enabling precise output common-mode control regardless of input common-mode voltage. Its internal resistor divider sets VOCM = 2.5 V when unconnected under 5 V supply, and the amplifier supports both single-ended-to-differential and fully differential input configurations.
It features matched input bias current (±260 nA max), low distortion (–116 dBc HD2 at 1 kHz, 8 VP-P), fast settling (550 ns to 18-bit), and stable operation into capacitive loads ≥10 pF per output when series-decoupled with 10 Ω–100 Ω resistors - all while maintaining rail-to-rail output swing and 34 MHz –3 dB bandwidth at unity gain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.8 V to 5.25 V single supply - enables direct interface with 3.3 V and 5 V logic/system rails without level-shifting. |
| Supply Current (Active) | 1.06 mA typical at 5 V - supports ultra-low-power portable and sensor-node applications with minimal thermal impact. |
| Input Offset Voltage | 200 µV max (input-referred) - ensures <0.003% gain error in 16-bit systems and <0.0008% in 18-bit systems at full scale. |
| Differential Input Noise | 3.9 nV/√Hz at 100 kHz - contributes <1.2 µVRMS integrated noise over 1 MHz bandwidth, preserving SNR in precision ADC front-ends. |
| Settling Time (18-bit) | 550 ns to 4 ppm (18-bit) for 8 VP-P step - meets timing budgets of 1.6 Msps SAR ADCs like LTC2379-18 without cycle loss. |
| Harmonic Distortion | –116 dBc HD2 / –114.9 dBc HD3 at 1 kHz, 8 VP-P - minimizes spectral contamination in FFT-based measurement and spectral analysis. |
| Gain-Bandwidth Product | 180 MHz - supports stable closed-loop gains up to 10× with >30 MHz usable bandwidth for anti-alias filtering. |
Pinout & Package
Package: 8-lead (3 mm × 3 mm) plastic DFN with exposed pad (Pin 9 = V–), rated for 0°C to 70°C operation. Thermal resistance θJA = 39.7°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| –IN (Pin 1) | Inverting input | Accepts rail-to-rail input signals; forms differential pair with +IN; requires matched feedback network for CMRR optimization. |
| VOCM (Pin 2) | Output common-mode reference | Sets average output voltage (VOUTCM); floats to 2.5 V on 5 V supply; must be driven externally to match ADC reference (e.g., LTC2379-18 VREF/2). |
| V+ (Pin 3) | Positive supply | Connects to main system rail (2.8–5.25 V); supplies internal bias and output stage; decoupling capacitor required near pin. |
| +OUT (Pin 4) | Positive differential output | Rail-to-rail capable; sources/sinks up to 35 mA; requires series resistor (10–100 Ω) if driving >10 pF load to prevent peaking. |
| –OUT (Pin 5) | Negative differential output | Complementary to +OUT; maintains balanced drive for differential ADC inputs; same layout rules apply. |
| V– (Pin 6 / Exposed Pad Pin 9) | Negative supply / thermal ground | Typically 0 V; exposed pad must be soldered to PCB ground plane for thermal and electrical integrity; defines lower supply rail. |
| SHDN (Pin 7) | Shutdown control | Logic-low (≤0.8 V) disables amplifier, reducing supply current to 70 µA; floating or tied to V+ enables operation. |
| +IN (Pin 8) | Noninverting input | Rail-to-rail input; paired with –IN to define differential input; high-impedance node sensitive to layout-induced imbalance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization across 2.8–5.25 V supplies, maximizing SNR without external level-shifting circuitry. |
| Low 1 mA supply current | Reduces power budget in multi-channel DAQ systems and extends battery life in handheld instruments beyond 100 hours. |
| 70 µA shutdown mode | Allows rapid power gating between conversions in duty-cycled systems, cutting idle power by >93% versus active mode. |
| 200 µV max offset voltage | Eliminates need for system-level offset calibration in 16-bit applications and reduces calibration frequency in 18-bit systems. |
| 3.9 nV/√Hz input noise | Preserves ENOB >17.5 bits in 1 MHz bandwidth applications, critical for high-resolution vibration or audio sensing front-ends. |
| 550 ns 18-bit settling | Supports 1.6 Msps sampling without dead time, enabling real-time processing in motor control and power quality analyzers. |
Applications
| Battery-Powered Portable Instrumentation | Industrial Data Acquisition Systems |
|---|---|
|
Use Scenario: Handheld multimeter or portable oscilloscope acquiring 16-/18-bit DC/low-frequency signals from precision sensors. IC Role / Device Role / Timing Role: Single-ended-to-differential converter and ADC driver, providing rail-to-rail swing and low-noise amplification before digitization. Use Value: 1 mA active current and 70 µA shutdown extend battery life; 200 µV offset ensures <0.001% absolute accuracy without recalibration. |
Use Scenario: PLC analog input module measuring thermocouple, RTD, or strain gauge outputs in noisy factory environments. IC Role / Device Role / Timing Role: Precision differential driver isolating sensor signals from common-mode noise before feeding 18-bit SAR ADCs. Use Value: 3.9 nV/√Hz noise and –116 dBc distortion preserve signal fidelity; VOCM pin allows direct tie to ADC reference for optimal CMRR. |
| Medical Sensor Signal Conditioning | Test & Measurement Equipment |
|
Use Scenario: ECG or EEG front-end amplifying microvolt-level biopotentials with high common-mode rejection. IC Role / Device Role / Timing Role: Low-noise, low-offset differential amplifier converting single-ended electrode signals to balanced differential outputs. Use Value: Rail-to-rail I/O accommodates wide sensor output ranges; 550 ns settling supports high-speed waveform capture at >1 Msps. |
Use Scenario: Benchtop digital multimeter or spectrum analyzer requiring 18-bit resolution and low THD for metrology-grade measurements. IC Role / Device Role / Timing Role: High-accuracy ADC driver in calibrated reference channel, ensuring traceable linearity and low harmonic distortion. Use Value: 260 nA max input bias current prevents errors with high-impedance dividers; PSRR >105 dB rejects supply ripple in sensitive measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential op amp/ADC driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4940-1ACPZ-R7 | Higher supply current (3.6 mA), wider supply range (3–10 V), lower noise (2.9 nV/√Hz), but no shutdown mode. | Better suited for high-speed (>10 Msps) or wide-supply applications; lacks low-power sleep capability. | Select when noise performance is prioritized over power; avoid where <1 mA active current is mandatory. |
| AD8138ARMZ | Higher power (20 mA), higher bandwidth (350 MHz), no rail-to-rail input, fixed-gain configuration options. | Targeted at video and high-frequency communication; not optimized for low-power SAR ADC driving. | Choose only for >50 MSPS applications; unsuitable for battery operation or precision DC/low-frequency use cases. |
Compared with ADA4940-1ACPZ-R7 and AD8138ARMZ, the LTC6362CDD#TRPBF uniquely balances sub-1 mA power, rail-to-rail I/O, integrated shutdown, and 18-bit settling - making it the only option among the three qualified for portable, battery-constrained, high-resolution data acquisition.
Availability
LTC6362CDD#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial data acquisition systems, and medical sensor signal conditioning requiring stable component supply, long-term lifecycle support, and guaranteed 0°C to 70°C performance.
Supply support for LTC6362CDD#TRPBF 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 LTC6362CDD#TRPBF belongs to ADI's precision differential amplifier product line, designed specifically to address the low-power, low-noise, high-DC-accuracy requirements of modern SAR ADC front-ends in portable and embedded measurement systems.
FAQ
What is the operating temperature range specified for the LTC6362CDD#TRPBF?
The LTC6362CDD#TRPBF is characterized and guaranteed over 0°C to 70°C ambient temperature. This grade ('C') is distinct from the 'I' (–40°C to 85°C) and 'H' (–40°C to 125°C) variants. The DFN package's thermal design supports reliable operation within this range when mounted with proper PCB copper area for the exposed V– pad.
Can the LTC6362CDD#TRPBF drive the LTC2379-18 18-bit SAR ADC directly?
Yes - the LTC6362CDD#TRPBF is explicitly validated in the datasheet for driving the LTC2379-18. Its 550 ns 18-bit settling time, rail-to-rail output swing, and VOCM pin compatibility with the ADC's reference midpoint enable seamless interface without external level-shifting or buffering components.
How does the VOCM pin function in the LTC6362CDD#TRPBF?
The VOCM pin sets the output common-mode voltage (VOUTCM = (V+OUT + V–OUT)/2). When left open, it defaults to ~2.5 V on a 5 V supply via an internal resistor divider. For optimal ADC interface, tie VOCM directly to the ADC's reference midpoint (e.g., VREF/2) - the 170 kΩ input impedance ensures minimal loading.
What is the recommended layout practice for the LTC6362CDD#TRPBF's exposed pad?
The exposed pad (Pin 9) is electrically connected to V– and serves as the primary thermal path. It must be soldered to a solid PCB ground plane using ≥4 thermal vias (0.3 mm diameter) spaced evenly under the pad. Failure to do so risks exceeding the 150°C maximum junction temperature under sustained 35 mA output current.
Does the LTC6362CDD#TRPBF support single-supply operation below 3 V?
Yes - the LTC6362CDD#TRPBF operates down to 2.8 V supply (V+ – V–), supporting 3 V nominal systems. At 3 V, typical supply current is 0.96 mA, offset voltage remains ≤200 µV, and rail-to-rail output swing is maintained from 0 V to 3 V, enabling compatibility with modern low-voltage microcontrollers and ADCs.
LTC6362CDD#TRPBF 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:
- 45V/µs
- Gain Bandwidth Product:
- 180 MHz
- -3db Bandwidth:
- 34 MHz
- Current - Input Bias:
- 75 nA
- Voltage - Input Offset:
- 75 µV
- Current - Supply:
- 1mA
- Current - Output / Channel:
- -
- 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-DFN (3x3)
LTC6362CDD#TRPBF FAQ
1.How can I place an order for LTC6362CDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6362CDD#TRPBF 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 LTC6362CDD#TRPBF reliable?
The price and inventory of LTC6362CDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6362CDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6362CDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6362CDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6362CDD#TRPBF?
LTC6362CDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6362CDD#TRPBF 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 LTC6362CDD#TRPBF?
For technical support, including LTC6362CDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6362CDD#TRPBF requirements.
6.How does Aetrix verify that LTC6362CDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6362CDD#TRPBF 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 LTC6362CDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6362CDD#TRPBF?
All LTC6362CDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6362CDD#TRPBF, 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 LTC6362CDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC6362CDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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