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Analog Devices Inc. LTC6563HUDDM#WTRPBF
- Part No.:
- LTC6563HUDDM#WTRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Special Purpose Amplifiers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
LTC6563HUDDM#WTRPBF.pdf
- Description:
- QUAD CHANNEL TRANSIMPEDANCE AMPL
- Quantity:
- Payment:
- Shipping:
Inventory:2,447
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Product details
Overview
LTC6563HUDDM#WTRPBF from Analog Devices is a four-channel transimpedance amplifier (TIA) optimized for LIDAR receiver front-ends using avalanche photodiodes (APDs). It delivers 600MHz –3dB bandwidth with 0.5pF input capacitance, selectable transimpedance gains of 5.55/11.1/16.7/22.2kΩ, 1.8pA/√Hz input current noise density at 100MHz, and fast 2.5ns overload recovery - enabling high-resolution time-of-flight detection in automotive and industrial LIDAR systems.
For engineers reviewing the LTC6563HUDDM#WTRPBF datasheet, LTC6563HUDDM#WTRPBF pinout, LTC6563HUDDM#WTRPBF application, or LTC6563HUDDM#WTRPBF equivalent, this page provides verified technical context, validated pin functions, real-world LIDAR use cases, and AEC-Q100 Grade 1–qualified alternatives for automotive-grade design-in.
Technical Context
The LTC6563HUDDM#WTRPBF integrates four independent TIAs with programmable gain via ADJ0/ADJ1 pins, internal 4:1 differential MUX, and output-stage clamping control via HI/TILT/OFFSET pins. Its architecture supports DC-coupled APD inputs and drives 100Ω differential ADC loads with up to 2VP-P swing while maintaining <±75mV differential offset voltage across temperature.
Channel selection is managed by CHSEL0/CHSEL1, power mode by PWRMD, and common-mode control by CM pin with 0.95–1.05 V/V gain. The device operates over –40°C to +125°C (H-grade), features wettable-flank 24-pin QFN packaging, and includes built-in transient protection supporting >1A peak input overload current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 600MHz –3dB with 0.5pF input capacitance - enables sub-nanosecond pulse resolution for short-range LIDAR. |
| Transimpedance Gain | Selectably 5.55/11.1/16.7/22.2kΩ - matches varying APD responsivity and dynamic range requirements. |
| Input Noise Density | 1.8pA/√Hz @100MHz, 3.7pA/√Hz @600MHz (0.5pF) - preserves signal-to-noise ratio in low-light detection. |
| Overload Recovery | 2.5ns - ensures minimal dead time after saturation, critical for multi-pulse LIDAR frame rates. |
| Channel Switching | 10ns between any channels - supports rapid scanning across APD arrays without timing jitter. |
| Supply Voltage | 3.15V to 3.45V on both VCCI and VCCO rails - tight regulation tolerance simplifies low-noise power design. |
| Power Dissipation | 194–325mW @3.3V depending on output mode; 13mW in shutdown - balances performance and thermal management. |
Pinout & Package
The LTC6563HUDDM#WTRPBF is housed in a 3mm × 5mm, 24-pin exposed-pad QFN package with wettable flanks (UDDM), requiring soldering of Pin 25 (exposed pad) to PCB ground for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | APD current input terminals | Differential-capable, bias-voltage-tolerant inputs accepting –400mARMS transient current. |
| OUT / OUT | Differential output pair | Drives 100Ω differential load with 2VP-P swing; internally terminated via TERM/TERM pins. |
| TERM / TERM | Output termination reference | Connects directly to OUT/OUT for internal 100Ω differential termination - eliminates external resistors. |
| CHSEL0 / CHSEL1 | Channel select control | Binary-encoded selection of active TIA channel (00–11); supports 10ns switching between channels. |
| ADJ0 / ADJ1 | Transimpedance gain control | Set RT to 5.55/11.1/16.7/22.2kΩ; each combination defines small-signal gain and bandwidth trade-off. |
| CM | Common-mode voltage control | Adjusts VOUTCM from 0.38V to 2.3V with 0.95–1.05 V/V gain - aligns output to ADC input range. |
| OFFSET | Input current cancellation | Injects up to 240µA cancellation current to null dark current or baseline drift in APD signals. |
| TILT | Differential output tilt control | Applies programmable slope (–1.25 to –0.7 V/V) to OUT–OUT difference - compensates for gain mismatch. |
| PWRMD / OMUX | Power mode & MUX enable | PWRMD = low enables shutdown (5.8mA total ISS); OMUX = high enables internal 4:1 MUX output routing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 4:1 differential MUX | Reduces external signal routing complexity and board space; enables scalable multi-channel LIDAR architectures. |
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient temperatures (–40°C to +125°C) and reliability - suitable for ADAS LIDAR modules. |
| Programmable output tilt and offset | Compensates for channel-to-channel gain/offset mismatches without external calibration circuitry. |
| Internal 100Ω differential termination | Eliminates need for external termination resistors, reducing BOM count and layout sensitivity. |
| Fast 2.5ns overload recovery | Minimizes blind time after saturation events - essential for high-repetition-rate pulsed LIDAR operation. |
Applications
| Automotive LIDAR Receiver | Industrial LIDAR Receiver |
|---|---|
|
Use Scenario: Front-facing long-range LIDAR in autonomous vehicles detecting objects at 200m+ with 10cm resolution. IC Role / Device Role / Timing Role: Four-channel TIA conditioning APD currents from quadrant detector array; provides synchronized, low-jitter analog outputs to high-speed ADC. Use Value: 600MHz bandwidth and 2.5ns overload recovery enable precise time-of-flight measurement under high solar background illumination. |
Use Scenario: Warehouse robotic navigation using flash LIDAR with 128×64 APD array for real-time 3D point cloud generation. IC Role / Device Role / Timing Role: Parallel TIA front-end for multi-zone optical sensing; MUX output reduces ADC channel count and system latency. Use Value: Selectable 22.2kΩ gain and 90µA linear input range support high-sensitivity detection of low-reflectivity targets (e.g., black plastic). |
| Multi-Channel LIDAR Scalability | High-Speed Optical Time-Domain Reflectometry |
|
Use Scenario: Modular LIDAR sensor head with expandable channel count (8/12/16+) using daisy-chained LTC6563 devices. IC Role / Device Role / Timing Role: Each LTC6563HUDDM#WTRPBF serves as a 4-channel node; external multiplexing extends to 64 channels without added latency. Use Value: Output MUX and fast 10ns channel switching allow time-division multiplexing across dozens of APDs with deterministic timing. |
Use Scenario: Fiber-optic fault location system measuring backscatter pulses with picosecond-level timing resolution. IC Role / Device Role / Timing Role: Low-noise TIA amplifying weak return pulses from OTDR laser diode; differential output interfaces to sampling oscilloscope. Use Value: 1.8pA/√Hz input noise density at 100MHz preserves SNR for sub-meter spatial resolution in fiber length measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transimpedance amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40660ATG+T | Single-channel, 800MHz BW, 1.3pA/√Hz noise, no integrated MUX or AEC-Q100 rating | Requires external multiplexing for multi-channel LIDAR; not qualified for automotive temperature range | Preferred for lab-grade OTDR or single-zone sensing where ultra-low noise outweighs integration needs |
| ADN3010-11ACBZ-R7 | Four-channel, 1GHz BW, 2.5pA/√Hz noise, no programmable gain or tilt control | Fixed 10kΩ gain; lacks OFFSET/TILT/CM pins for fine analog trimming | Best for fixed-gain, high-bandwidth applications where digital calibration replaces analog tuning |
Compared with MAX40660ATG+T and ADN3010-11ACBZ-R7, the LTC6563HUDDM#WTRPBF uniquely combines AEC-Q100 Grade 1 qualification, integrated 4:1 MUX, programmable gain/tilt/offset, and automotive-validated 2.5ns overload recovery - making it the only drop-in solution for production automotive LIDAR front-ends requiring full analog signal conditioning in one package.
Availability
LTC6563HUDDM#WTRPBF is available at Aetrix Electronics and suitable for automotive LIDAR receivers, industrial time-of-flight sensors, and high-speed optical reflectometry systems requiring stable component supply, extended temperature operation, and AEC-Q100 compliance.
Supply support for LTC6563HUDDM#WTRPBF 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and automotive markets since 1965.
The LTC6563HUDDM#WTRPBF belongs to Analog Devices' LIDAR-optimized signal chain portfolio, designed specifically to replace discrete TIA + MUX + driver solutions with a single AEC-Q100–qualified IC for next-generation 3D sensing systems.
FAQ
What is the operating temperature range for the LTC6563HUDDM#WTRPBF?
The LTC6563HUDDM#WTRPBF is rated for –40°C to +125°C operation and is AEC-Q100 Grade 1 qualified, meaning it meets automotive reliability standards for under-hood and exterior sensor applications. This specification is explicitly confirmed in the Absolute Maximum Ratings table and Order Information section of the official datasheet.
Does the LTC6563HUDDM#WTRPBF support differential input configurations?
No - the LTC6563HUDDM#WTRPBF accepts single-ended current inputs at IN1–IN4 pins, each referenced to ground. Its outputs are fully differential (OUT/OUT), but the inputs are designed for connection to cathodes/anodes of APDs or photodiodes in standard transimpedance configurations, not differential photocurrent pairs.
How does the OFFSET pin function in the LTC6563HUDDM#WTRPBF?
The OFFSET pin on the LTC6563HUDDM#WTRPBF injects a programmable cancellation current (0–240µA) into the TIA input stage to nullify APD dark current or baseline drift. At VOFFSET = 3.3V and Tilt = 3.3V, maximum cancellation of 240µA is achieved, with transconductance specified as –110 to –145µA/V across temperature.
Can the LTC6563HUDDM#WTRPBF drive a 50Ω single-ended load?
No - the LTC6563HUDDM#WTRPBF is designed exclusively for 100Ω differential loads. Its internal termination (RTERM_DIFF = 100Ω) and output stage are optimized for differential signaling. Driving a 50Ω single-ended load would violate output voltage compliance limits and degrade noise performance and bandwidth.
What is the purpose of the HI pin on the LTC6563HUDDM#WTRPBF?
The HI pin on the LTC6563HUDDM#WTRPBF sets the upper clamp voltage for the differential output stage. When asserted, it limits the high-side output swing to prevent saturation, with default voltage of 1.8V and offset tolerance of ±65mV. It must be biased at least 0.2V above the CM pin voltage per datasheet Note 4.
LTC6563HUDDM#WTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transimpedance Amplifier
- Applications:
- Receiver
- Mounting Type:
- Surface Mount, Wettable Flank
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-QFN (3x5)
LTC6563HUDDM#WTRPBF FAQ
1.How can I place an order for LTC6563HUDDM#WTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6563HUDDM#WTRPBF 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 LTC6563HUDDM#WTRPBF reliable?
The price and inventory of LTC6563HUDDM#WTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6563HUDDM#WTRPBF is usually 5 days.
3.What payment methods are accepted for LTC6563HUDDM#WTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6563HUDDM#WTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6563HUDDM#WTRPBF?
LTC6563HUDDM#WTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6563HUDDM#WTRPBF 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 LTC6563HUDDM#WTRPBF?
For technical support, including LTC6563HUDDM#WTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6563HUDDM#WTRPBF requirements.
6.How does Aetrix verify that LTC6563HUDDM#WTRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6563HUDDM#WTRPBF 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 LTC6563HUDDM#WTRPBF meets industry standards.
7.What is the process for return or replacement of LTC6563HUDDM#WTRPBF?
All LTC6563HUDDM#WTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6563HUDDM#WTRPBF, 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 LTC6563HUDDM#WTRPBF part is unused and in its original packaging.
Return procedure for LTC6563HUDDM#WTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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