Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Interface > Sensor and Detector Interfaces

Analog Devices Inc. AD9948KCP

Name: AD9948KCP
Brand: Analog Devices Inc.
SKU: AD9948KCP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: AD9948KCP

Manufacturer:: Analog Devices Inc.

Category:: Sensor and Detector Interfaces

Package:: 40-VFQFN Exposed Pad, CSP

Datasheet:: AD9948KCP.pdf

Description:: IC CCD SIGNAL PROCESSOR 40-LFCSP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,453

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

AD9948KCP from Analog Devices is a 10-bit CCD signal processor with integrated Precision Timing™ core, CDS, PxGA (0–18 dB), VGA (6–42 dB), and 25 MSPS ADC - designed for digital still camera front ends requiring precise pixel-level timing control and analog signal conditioning.

For engineers reviewing the AD9948KCP datasheet, AD9948KCP pinout, AD9948KCP application, or AD9948KCP equivalent, this page delivers verified specifications, validated 40-lead LFCSP package mapping, confirmed timing resolution (800 ps), real-world power dissipation (220 mW at 25 MHz), and two field-validated alternative parts for CCD imaging system design.

Technical Context

The AD9948KCP implements a fully programmable Precision Timing core synchronized to a 25 MHz CLI master clock, dividing each pixel period into 48 discrete edge positions (800 ps resolution) to configure RG, H1–H4, SHP, and SHD timing with independent rising/falling edge placement and polarity control.

Its analog front end integrates correlated double sampling (CDS), a 256-step pixel gain amplifier (PxGA), a 1024-step variable gain amplifier (VGA), black level clamp with 256-step resolution, and a 10-bit ADC - all operating from multiple independent supplies (AVDD, HVDD, RGVDD, DVDD, DRVDD) across –20°C to +85°C.

Key Specifications

Parameter	Value and Actual Design Meaning
ADC Resolution	10-bit with guaranteed no missing codes and ±0.5 LSB DNL - ensures full dynamic range utilization in CCD digitization.
Pixel Clock Rate	Up to 25 MHz - supports high-speed imaging up to 4096 × 4096 fields with synchronized VD/HD timing.
Precision Timing Resolution	800 ps per edge position (tCLI/48) - enables sub-pixel timing alignment critical for low-noise CDS and minimal smear.
VGA Gain Range	6 dB to 42 dB in 1024 steps - provides fine-grained analog gain control before ADC saturation.
PxGA Gain Range	0 dB to 18 dB in 256 steps - allows per-color pixel-level gain adjustment for color channel balancing.
Power Dissipation	220 mW at 25 MHz with 100 pF H-driver loading - reflects real thermal load under typical CCD drive conditions.
Operating Temperature	–20°C to +85°C - qualified for consumer and industrial digital camera environments.

Pinout & Package

AD9948KCP is housed in a 40-lead Lead Frame Chip Scale Package (LFCSP, CP-40) with exposed paddle for thermal management (θ_JA = 27°C/W). Pin 1 identifier located top-left; NC on pins 1 and 40.

Pin/Terminal	Circuit Role	Design Meaning
D0–D9 (Pins 2–4, 7–13)	Digital data outputs (LSB to MSB)	10-bit parallel pixel data output with programmable phase alignment to CLI clock.
H1–H4 (Pins 14, 15, 18, 19)	CCD horizontal clock drivers	On-chip 3 V drivers with adjustable current (0–30.1 mA) and inverse-phase pairing (H2/H4 = ¬H1/¬H3).
RG (Pin 21)	CCD reset gate clock driver	Programmable edge position and polarity; 3 V output with same drive strength as H-drivers.
CLI (Pin 25)	Master pixel clock input	25 MHz input reference for all internal timing generation; triggers 48-position edge resolution engine.
CCDIN (Pin 27)	Analog CCD signal input	AC-coupled input (via 0.1 µF capacitor) supporting ±50 mV optical black pixels and 1 V p-p max signal range.
REFT / REFB (Pins 29–30)	ADC reference top/bottom	Fixed 2.0 V / 1.0 V reference pair defining 2.0 V full-scale ADC range; decoupled with 1.0 µF to AVSS.
SL / SDI / SCK (Pins 31–33)	3-wire serial interface	24-bit register access with auto-increment mode; supports VD/HD-synchronized or SL-triggered updates.

Key Features

Feature	Design Value
Correlated Double Sampling (CDS)	Integrated analog CDS block with 0 dB gain and 500 mV allowable reset transient - suppresses kTC noise and fixed-pattern noise in CCD readout.
Precision Timing Core	800 ps timing resolution with 48-edge-per-pixel programmability - enables sub-pixel optimization of SHP/SHD sampling and H-clock edges to minimize smear and maximize SNR.
On-chip CCD Drivers	Integrated 3 V H1–H4 and RG drivers with 8-step current control (0–30.1 mA) - eliminates external level shifters and reduces board area in compact camera modules.
Black Level Clamp	256-step programmable clamp level applied at ADC output (0–63.75 LSB) - enables precise optical black pixel calibration across temperature and exposure conditions.
Multi-Supply Architecture	Independent AVDD, HVDD, RGVDD, DVDD, DRVDD rails - isolates analog, timing, and digital domains to maintain PSR >50 dB and minimize crosstalk.

Applications

Digital Still Camera Sensor Interface	High-Speed Industrial CCD Imaging
Use Scenario: Front-end signal processing for 10–16 MP CCD sensors in DSLR and mirrorless cameras, where low-noise analog chain and precise timing synchronization are essential. IC Role / Device Role / Timing Role: Single-chip AFE + timing generator performing CDS, PxGA/VGA amplification, clamping, 10-bit digitization, and generating RG/H1–H4 clocks with 800 ps edge placement. Use Value: Reduces BOM count by integrating drivers and timing logic; achieves <0.25 LSB rms noise and <0.2% peak nonlinearity at 25 MSPS.	Use Scenario: Machine vision systems capturing fast-moving objects (e.g., production line inspection), requiring stable pixel timing and repeatable gain calibration. IC Role / Device Role / Timing Role: CCD signal conditioner with programmable clamping and gain staging, synchronized to external VD/HD signals for frame-accurate triggering. Use Value: Enables field-updatable timing sequences via serial interface; supports 4096×4096 maximum field dimensions with VD/HD edge programmability.
Medical Endoscopy Imaging	Scientific CCD Readout Systems
Use Scenario: Miniaturized imaging modules in rigid/flexible endoscopes, where space-constrained PCBs demand highly integrated analog and timing functions. IC Role / Device Role / Timing Role: Compact AFE handling low-light CCD signals with 6 dB minimum VGA gain and 256-step PxGA for white balance tuning. Use Value: Delivers 50 dB PSR and 0.25 LSB rms noise - critical for maintaining contrast in low-illumination medical imaging.	Use Scenario: Laboratory-grade CCD readout for spectroscopy or astronomy, requiring deterministic timing, low drift, and calibrated gain linearity. IC Role / Device Role / Timing Role: Precision timing-controlled digitizer with 1024-step VGA monotonicity guarantee and ±0.5 LSB DNL - ensures measurement repeatability. Use Value: Supports traceable calibration via serial register access; maintains <0.2% peak nonlinearity across full 1 V p-p input range.

Digital Still Camera Sensor Interface

High-Speed Industrial CCD Imaging

Use Scenario: Front-end signal processing for 10–16 MP CCD sensors in DSLR and mirrorless cameras, where low-noise analog chain and precise timing synchronization are essential.

IC Role / Device Role / Timing Role: Single-chip AFE + timing generator performing CDS, PxGA/VGA amplification, clamping, 10-bit digitization, and generating RG/H1–H4 clocks with 800 ps edge placement.

Use Value: Reduces BOM count by integrating drivers and timing logic; achieves <0.25 LSB rms noise and <0.2% peak nonlinearity at 25 MSPS.

Use Scenario: Machine vision systems capturing fast-moving objects (e.g., production line inspection), requiring stable pixel timing and repeatable gain calibration.

IC Role / Device Role / Timing Role: CCD signal conditioner with programmable clamping and gain staging, synchronized to external VD/HD signals for frame-accurate triggering.

Use Value: Enables field-updatable timing sequences via serial interface; supports 4096×4096 maximum field dimensions with VD/HD edge programmability.

Medical Endoscopy Imaging

Scientific CCD Readout Systems

Use Scenario: Miniaturized imaging modules in rigid/flexible endoscopes, where space-constrained PCBs demand highly integrated analog and timing functions.

IC Role / Device Role / Timing Role: Compact AFE handling low-light CCD signals with 6 dB minimum VGA gain and 256-step PxGA for white balance tuning.

Use Value: Delivers 50 dB PSR and 0.25 LSB rms noise - critical for maintaining contrast in low-illumination medical imaging.

Use Scenario: Laboratory-grade CCD readout for spectroscopy or astronomy, requiring deterministic timing, low drift, and calibrated gain linearity.

IC Role / Device Role / Timing Role: Precision timing-controlled digitizer with 1024-step VGA monotonicity guarantee and ±0.5 LSB DNL - ensures measurement repeatability.

Use Value: Supports traceable calibration via serial register access; maintains <0.2% peak nonlinearity across full 1 V p-p input range.

Equivalent & Alternatives

The following parts are listed as comparable options for similar CCD signal processor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD9949KCPZ	Same 40-lead LFCSP package and Precision Timing core, but adds 12-bit ADC and extended 30 MSPS operation - higher resolution at increased power (280 mW).	Preferred for scientific imaging requiring >10-bit dynamic range; not drop-in due to different ADC interface timing and register map.	Select AD9949KCPZ only when 12-bit resolution and >25 MSPS throughput are mandatory; verify timing register compatibility.
TDC1000YFFT	TI ultrasonic AFE with integrated PGA and ADC, but lacks CCD-specific timing drivers (no RG/H1–H4), CDS, or Precision Timing architecture.	Targeted at ultrasonic transducer interfaces, not CCD sensors; requires external timing generation and analog front-end redesign.	Not a functional substitute; consider only if migrating from CCD to ultrasonic sensing architecture.

Compared with AD9948KCP, AD9949KCPZ offers higher ADC resolution and speed at the cost of increased power and non-pin-compatible register behavior, while TDC1000YFFT serves a fundamentally different sensor modality and cannot replace CCD timing or CDS functionality.

Availability

AD9948KCP is available at Aetrix Electronics and suitable for digital still camera modules, industrial machine vision systems, medical endoscopy equipment, and scientific CCD readout applications requiring stable component supply and long-term lifecycle support.

Supply support for AD9948KCP 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and signal conditioning.

The AD9948KCP belongs to Analog Devices' Precision Timing™ CCD signal processor product line, engineered specifically for high-fidelity, low-noise digital imaging systems demanding sub-nanosecond timing control and integrated analog front-end functionality.

FAQ

What is the maximum pixel clock frequency supported by the AD9948KCP?

The AD9948KCP supports a maximum CLI (master clock) frequency of 25 MHz, enabling pixel rates up to 25 MSPS. This is specified across the full operating temperature range (–20°C to +85°C) and aligns with the 4096 × 4096 maximum field dimensions defined in the datasheet. The AD9948KCP's internal timing core derives all clocks-including RG, H1–H4, and SHP/SHD-from this CLI input with 48-step division, yielding 800 ps resolution per edge position.

Does the AD9948KCP include on-chip drivers for CCD horizontal clocks?

Yes, the AD9948KCP integrates on-chip 3 V drivers for H1–H4 and RG outputs, eliminating the need for external level shifters. Each driver supports programmable current from 0 mA (three-state) to 30.1 mA in 4.1 mA steps via the DRVCONTROL register (Address 0x062). H2 and H4 are hardwired inverses of H1 and H3 respectively, with <1 ns propagation delay difference - ensuring precise crossover voltage at ~50% swing for optimal CCD charge transfer.

How is black level clamping implemented in the AD9948KCP?

The AD9948KCP implements horizontal black level clamping using optical black (OB) pixels, with clamp level programmable in 256 steps (0–255) corresponding to 0–63.75 LSB at the ADC output. Clamping occurs after the PxGA and VGA stages and before digitization. The CLAMP LEVEL register (Address 0x02) sets the target, and the CDSGAIN bits in OPRMODE (Address 0x00) allow fine-tuning of CDS gain (0 dB, –2 dB, or –4 dB) to match sensor characteristics.

What serial interface protocol does the AD9948KCP use for configuration?

The AD9948KCP uses a 3-wire serial interface (SL, SDI, SCK) supporting up to 10 MHz SCK frequency. Each register write requires a 32-bit transaction: 8-bit LSB-first address followed by 24-bit LSB-first data. The device supports address auto-increment mode (Figure 3b), allowing sequential register writes without repeating addresses - significantly accelerating initialization of timing or gain registers during system startup or mode switching.

Is the AD9948KCP pin-compatible with other members of the AD994x family?

No, the AD994KCP is not pin-compatible with AD9947 or AD9949 despite shared package (40-lead LFCSP). Pin functions differ significantly - for example, AD9947 lacks H3/H4 outputs and uses different power domain assignments, while AD9949 adds 12-bit ADC outputs and reassigns several digital I/O pins. The AD9948KCP's pinout (e.g., D0–D9 on pins 2–4/7–13, H1–H4 on pins 14/15/18/19) is unique to this variant and must be laid out accordingly.

AD9948KCP Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Package/Case:: 40-VFQFN Exposed Pad, CSP

Series:: -

Packaging:: Bag

Product Status:: Obsolete

Programmable:: Not Verified

Type:: CCD Signal Processor, 10-Bit

Input Type:: Logic

Output Type:: Logic

Current - Supply:: -

Operating Temperature:: -20°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 40-LFCSP (6x6)

AD9948KCP FAQ

1.How can I place an order for AD9948KCP through Aetrix?

Please submit a Request for Quotation (RFQ) for AD9948KCP 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 AD9948KCP reliable?

The price and inventory of AD9948KCP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9948KCP is usually 5 days.

3.What payment methods are accepted for AD9948KCP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9948KCP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD9948KCP?

AD9948KCP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD9948KCP 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 AD9948KCP?

For technical support, including AD9948KCP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9948KCP requirements.

6.How does Aetrix verify that AD9948KCP is sourced from the original manufacturer or authorized distributors?

All AD9948KCP 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 AD9948KCP meets industry standards.

7.What is the process for return or replacement of AD9948KCP?

All AD9948KCP units undergo pre-shipment inspection (PSI). If there is an issue with AD9948KCP, 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 AD9948KCP part is unused and in its original packaging.

Return procedure for AD9948KCP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…