Analog Devices Inc. AD9941BSTZRL

The AD9941 processes imaging signals that do not require correlated double sampling in this device. It can condition the output of CMOS imagers and CCD arrays with on-chip CDS, then digitize the signal at up to 56 MSPS. Its serial interface programs gain and related controls. It is not a complete image sensor or camera controller.

• Integrated differential sample-and-hold, VGA, clamp and 14-bit conversion.
• Single-channel operation up to 56 MSPS.
• Three-wire programmable control.
• Compact 7 x 7 mm LQFP body.
• Tape-and-reel ordering form for production assembly.

The front end accepts a 1 V peak-to-peak differential input and offers a 0 or 6 dB gain setting. A digitally controlled VGA and optical-black clamp precede the 14-bit ADC. ADCLK, PBLK and CLPOB provide timing and clamp control; SDATA, SCK and SL form the serial register interface. The data sheet guarantees no missing ADC codes under specified conditions.

The manufacturer's exact AD9941BSTZRL ordering entry specifies Pb-free ST-48, a 48-lead LQFP with a 7 x 7 mm body and 0.5 mm lead pitch. The database package is 48-LQFP and matches the registered outline. RL is the reel ordering form; it does not change the silicon or footprint. Confirm reel quantity with a current supplier quotation.

Layout checks

• Check pin-one orientation.
• Use the official ST-48 mechanical drawing for land pattern dimensions.
• Verify lead pitch and body clearance before substitution.

The local registered package JPG is missing, so this draft is not publishable.

VIN+ is pin 30 and VIN- is pin 31. ADCLK is pin 16, PBLK pin 19 and CLPOB pin 20. The serial control pins are SDATA 44, SCK 45 and SL 46; RESET is 43. REFT and REFB are pins 38 and 39. The 14-bit parallel output uses D0 and D1 on pins 47 and 48, and D2 through D13 on pins 1 through 12. Follow the complete data-sheet pin table for all supply and ground connections.

Use manufacturer maximum/minimum electrical and timing tables, not typical figures alone, for sign-off.

No database-verified drop-in alternative is linked here. The related AD9941BSTZ is listed by the manufacturer in the same ST-48 outline but differs in ordering form; the two order codes are not automatically interchangeable for purchasing or production. Verify reel/tray supply, full markings, timing, serial register settings, references, supplies and board footprint.

Analog Devices publishes the exact AD9941BSTZRL part-model entry and the Rev. 0 data sheet. Its ordering guide lists the same -25 to +85 degrees C grade and ST-48 package for AD9941BSTZ and AD9941BSTZRL; the Z suffix denotes Pb-free. Consult current manufacturer notices and the latest document revision before design decisions.

• Digital still cameras using CMOS imagers.
• Professional HDTV camcorders and broadcast cameras.
• Existing high-end imaging boards designed for AD9941.

Check complete markings, lot and reel traceability, moisture controls, Pb-free finish and packaging condition. Public exact-code reseller listings show conflicting stock and price figures without an established live authorized-distributor tier ladder. The catalog inventory and price are not independently validated; obtain a current exact-code quotation.

Verify input amplitude, ADC clock, black-level clamp timing, register programming, reference connections and all supply decoupling before use. The missing package JPG and unverified live distributor stock and price ladder prohibit publication of this draft.