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Analog Devices Inc. LTC6563HUDDM#PBF
- Part No.:
- LTC6563HUDDM#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Special Purpose Amplifiers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
LTC6563HUDDM#PBF.pdf
- Description:
- QUAD CHANNEL TRANSIMPEDANCE AMPL
- Quantity:
- Payment:
- Shipping:
Inventory:4,002
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Product details
Overview
LTC6563HUDDM#PBF from Analog Devices is a four-channel transimpedance amplifier (TIA) optimized for LIDAR receiver front-ends using avalanche photodiodes (APDs) or photodiodes (PDs). It delivers 600MHz –3dB bandwidth with 0.5pF input capacitance, selectable transimpedance gains of 5.55/11.1/16.7/22.2kΩ, and 90µA linear input current range - enabling high-speed, low-noise optical signal conversion in automotive and industrial LIDAR systems.
For engineers reviewing the LTC6563HUDDM#PBF datasheet, LTC6563HUDDM#PBF pinout, LTC6563HUDDM#PBF application, or LTC6563HUDDM#PBF equivalent, key selection criteria include its integrated 4-to-1 differential output MUX, fast 10ns channel switching, 2.5ns overload recovery, 1.8–3.7pA/√Hz input current noise density (100–600MHz), and AEC-Q100 Grade 1 qualification for harsh-temperature operation up to +125°C.
Technical Context
The LTC6563HUDDM#PBF implements a low-noise, wide-bandwidth TIA architecture with independent per-channel gain control via ADJ0/ADJ1 pins and dynamic input current cancellation via the OFFSET pin. Its internal 4:1 differential MUX reduces system-level routing complexity while supporting external cascading for up to 64-channel scalability.
It features programmable output common-mode voltage (CM pin), tilt-controlled differential swing adjustment (TILT pin), and dual supply domains (VCCI/VCCO) with separate power supply rejection (33–38dB). The device operates across –40°C to +125°C and integrates clamping circuitry (HI pin) and termination resistors (100Ω differential) for direct ADC interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3dB Bandwidth | 600MHz at 0.5pF input capacitance - supports short-pulse LIDAR detection with sub-nanosecond timing resolution. |
| Transimpedance Gain | Selectable 5.55/11.1/16.7/22.2kΩ - enables optimization for APD gain vs. bandwidth/noise trade-offs. |
| Input Current Noise Density | 1.8pA/√Hz @ 100MHz, 3.7pA/√Hz @ 600MHz (0.5pF) - critical for maximizing SNR in weak-light detection. |
| Differential Output Swing | Up to 2VP-P into 100Ω load - drives high-speed ADCs like AD9094 without external amplification. |
| Channel Switching Time | 10ns between any channels - enables rapid time-of-flight multiplexing across multi-element APD arrays. |
| Overload Recovery | 2.5ns recovery from >1A transient input - maintains integrity during optical saturation events. |
| Operating Temperature | –40°C to +125°C (H-grade) - qualified per AEC-Q100 Grade 1 for under-hood automotive LIDAR deployment. |
| Supply Voltage | 3.15V to 3.45V on both VCCI and VCCO - ensures stable operation with standard 3.3V rail regulation. |
Pinout & Package
The LTC6563HUDDM#PBF is housed in a 3mm × 5mm, 24-pin QFN package with exposed thermal pad (Pin 25 = GND) and wettable flanks for automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Photodiode input terminals | Four independent low-capacitance TIA inputs accepting APD/PD anode/cathode configurations. |
| OUT / OUT | Differential output pair | High-speed 2VP-P differential output driving 100Ω loads; internally terminated when TERM/TERM used. |
| TERM / TERM | Differential termination interface | Connects to OUT/OUT to enable internal 100Ω differential termination - eliminates external resistors. |
| CHSEL0 / CHSEL1 | MUX channel select inputs | Binary-selects active TIA channel (00–11) for 4:1 output multiplexing; TTL-compatible logic levels. |
| OMUX | Output MUX enable | Logic-high enables internal 4:1 MUX; logic-low disables MUX and outputs all four channels simultaneously. |
| PWRMD | Power mode control | Logic-low places device in low-power shutdown (6.3mA total ISS); logic-high enables full operation. |
| CM | Common-mode voltage control | Analog input setting VOUTCM from 0.43V to 2.3V - matches ADC reference requirements precisely. |
| OFFSET | Input current cancellation | Adjusts DC offset current up to ±240µA - compensates APD dark current and bias drift over temperature. |
| TILT | Differential swing slope control | Programs output gain slope (–0.7 to –1.25V/V) to linearize response across wide input current range. |
| HI | High-side output clamp | Sets upper output voltage limit; prevents saturation-induced distortion during large transient events. |
| VCCI / VCCO | Independent supply rails | VCCI powers input stage; VCCO powers output stage - enables PSRR isolation and flexible power sequencing. |
| GND (Pins 1,3,5,7,9,11,13,25) | Ground connections | Eight dedicated GND pins + exposed pad ensure low-impedance return paths for RF-sensitive analog signals. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 4:1 differential MUX | Reduces PCB routing congestion and eliminates external multiplexer ICs - cuts BOM count and layout area. |
| Programmable transimpedance gain | Four discrete RT settings (5.55–22.2kΩ) selected via ADJ0/ADJ1 - allows real-time adaptation to varying APD gain or light conditions. |
| Input current cancellation | OFFSET pin injects up to ±240µA cancellation current - actively nulls APD dark current drift over –40°C to +125°C. |
| Fast overload recovery | 2.5ns recovery from >1A input transient - preserves timing accuracy after optical saturation in pulsed LIDAR. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use at –40°C to +125°C ambient - meets reliability and lifetime requirements for ADAS sensors. |
| Wettable flank QFN package | Enables automated optical inspection (AOI) of solder joints - improves manufacturing yield and field-reliability assurance. |
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 array outputs; provides synchronized, low-jitter analog pulses to high-speed ADCs. Use Value: 600MHz bandwidth and 10ns channel switching support <1ns time-of-flight resolution; AEC-Q100 Grade 1 ensures operation in engine-bay environments. |
Use Scenario: Warehouse robotic navigation using flash LIDAR scanning 360° at 30fps for obstacle avoidance. IC Role / Device Role / Timing Role: Simultaneous amplification of multiple photodiode channels in solid-state flash LIDAR modules. Use Value: Integrated 4:1 MUX and 2.5ns overload recovery enable robust operation under variable ambient light and reflective surface conditions. |
| Multi-Channel Optical Sensing | High-Speed Photometry System |
|
Use Scenario: Medical pulse oximetry sensor with quad-wavelength LED/APD array for simultaneous SpO₂ and perfusion monitoring. IC Role / Device Role / Timing Role: Low-noise TIA front-end converting weak photodiode currents into clean differential signals for synchronous demodulation. Use Value: 1.8pA/√Hz input noise density at 100MHz maximizes SNR for sub-µA photocurrents; OFFSET pin cancels LED leakage and thermal drift. |
Use Scenario: Semiconductor wafer inspection system capturing nanosecond-scale fluorescence decay waveforms. IC Role / Device Role / Timing Role: High-fidelity analog front-end digitizing ultrafast optical transients from time-correlated single-photon counting (TCSPC). Use Value: 600MHz bandwidth and 0.6ns rise/fall time preserve picosecond-level timing fidelity; differential output rejects common-mode noise in noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transimpedance amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40660ATB/VY+ | Single-channel, 1GHz bandwidth, 2.5pA/√Hz noise, no integrated MUX, 3.3V-only supply. | Best suited for high-bandwidth single-point sensing; lacks multi-channel integration and automotive qualification. | Choose when maximum bandwidth (>600MHz) is required per channel and system-level MUX is implemented externally. |
| ADA4350ACPZ-R7 | Single-channel, 200MHz bandwidth, 1.1pA/√Hz noise, programmable gain, no MUX, no AEC-Q100 rating. | Optimized for precision low-noise lab instrumentation; not rated for automotive temperature or vibration stress. | Prefer for cost-sensitive industrial test equipment where bandwidth demand is ≤200MHz and qualification is non-critical. |
Compared with MAX40660ATB/VY+ and ADA4350ACPZ-R7, the LTC6563HUDDM#PBF uniquely combines four-channel integration, AEC-Q100 Grade 1 qualification, internal 4:1 MUX, and 600MHz bandwidth - making it the only drop-in solution for production automotive LIDAR receivers requiring channel density, reliability, and timing performance.
Availability
LTC6563HUDDM#PBF is available at Aetrix Electronics and suitable for automotive LIDAR receivers, industrial time-of-flight sensors, and high-speed optical measurement systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6563HUDDM#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC6563HUDDM#PBF belongs to Analog Devices' precision high-speed signal conditioning product line, designed specifically for optical time-of-flight (ToF) and LIDAR receiver applications demanding low noise, wide bandwidth, and automotive-grade reliability.
FAQ
What is the operating temperature range of the LTC6563HUDDM#PBF?
The LTC6563HUDDM#PBF is rated for operation from –40°C to +125°C and is AEC-Q100 Grade 1 qualified. This specification is explicitly confirmed in the Absolute Maximum Ratings table and DC Electrical Characteristics section of the official datasheet, ensuring suitability for under-hood automotive LIDAR deployments where ambient temperatures exceed 105°C.
Does the LTC6563HUDDM#PBF support external multiplexing beyond four channels?
Yes, the LTC6563HUDDM#PBF supports external multiplexing to scale up to 64 channels. As stated in the Features section, "external multiplexing capability allows channel expansion up to 64 channels" by cascading multiple LTC6563HUDDM#PBF devices - leveraging the OMUX pin and differential output architecture to maintain signal integrity across expanded arrays.
How does the OFFSET pin function in the LTC6563HUDDM#PBF?
The OFFSET pin on the LTC6563HUDDM#PBF provides programmable input current cancellation, injecting up to ±240µA to nullify APD dark current and input stage offsets. Per the DC Electrical Characteristics table, ICANCEL_MAX = 240µA at VOFFSET = 3.3V and Tilt = 3.3V, with transconductance GOFFSET = –110µA/V - enabling precise DC calibration across temperature.
What is the purpose of the HI pin on the LTC6563HUDDM#PBF?
The HI pin on the LTC6563HUDDM#PBF controls the high-side output clamp voltage. As specified in the DC Electrical Characteristics table, VHI_VOS = –65mV (typical) defines the offset between the HI pin voltage and the maximum output voltage, allowing users to set a precise upper clipping threshold to prevent saturation distortion during large optical transients.
Is the LTC6563HUDDM#PBF pin-compatible with other variants in the LTC6563 family?
Yes, the LTC6563HUDDM#PBF shares identical pinout and package (24-pin 3mm × 5mm QFN) with all LTC6563 variants including LTC6563IUDDM#PBF and LTC6563HUDDM#WPBF. The UDDM package designation and pin configuration diagram confirm mechanical and electrical compatibility across temperature grades and automotive suffixes.
LTC6563HUDDM#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Transimpedance Amplifier
- Applications:
- Receiver
- Mounting Type:
- Surface Mount, Wettable Flank
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-QFN (3x5)
LTC6563HUDDM#PBF FAQ
1.How can I place an order for LTC6563HUDDM#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6563HUDDM#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 LTC6563HUDDM#PBF reliable?
The price and inventory of LTC6563HUDDM#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6563HUDDM#PBF is usually 5 days.
3.What payment methods are accepted for LTC6563HUDDM#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6563HUDDM#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6563HUDDM#PBF?
LTC6563HUDDM#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6563HUDDM#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 LTC6563HUDDM#PBF?
For technical support, including LTC6563HUDDM#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6563HUDDM#PBF requirements.
6.How does Aetrix verify that LTC6563HUDDM#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6563HUDDM#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 LTC6563HUDDM#PBF meets industry standards.
7.What is the process for return or replacement of LTC6563HUDDM#PBF?
All LTC6563HUDDM#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6563HUDDM#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 LTC6563HUDDM#PBF part is unused and in its original packaging.
Return procedure for LTC6563HUDDM#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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