Analog Devices Inc. ADA4433-1BCPZ-R7

Overview

ADA4433-1BCPZ-R7 from Analog Devices is a fully differential SD video filter amplifier with integrated short-to-battery (STB) and short-to-ground (STG) protection, −3 dB bandwidth of 9.9 MHz, 0.1 dB flatness to 3 MHz, 45 dB out-of-band rejection at 27 MHz, and fixed 2 V/V gain. It drives twisted-pair or coaxial cables in automotive rearview camera systems.

For engineers reviewing the ADA4433-1BCPZ-R7 datasheet, ADA4433-1BCPZ-R7 pinout, ADA4433-1BCPZ-R7 application, or ADA4433-1BCPZ-R7 equivalent, key selection considerations include differential output balance error (−50 dB), STB flag threshold (5.4 V typ), quiescent current (13.2 mA typ), and AEC-Q100 qualification for automotive environments.

Technical Context

The ADA4433-1BCPZ-R7 implements a fifth-order low-pass filter optimized for NTSC/PAL SD video, with internally fixed 6 dB gain and midsupply-biased differential outputs (V_CM = +V_S/2). Its differential architecture supports both single-ended-to-differential and differential-to-differential signal conversion.

Short-to-battery protection operates up to 18 V on either output, with 150 ns disconnect time and automatic reconnection when output voltage falls below +V_S − 0.3 V. The STB pin provides logic-level fault indication independent of enable state, while ENA pin enables ultralow 13.5 µA shutdown current.

Key Specifications

Pinout & Package

ADA4433-1BCPZ-R7 is housed in an 8-lead, 3 mm × 3 mm LFCSP package with exposed pad (EPAD) for thermal and electrical grounding. Pin 1 is −IN; Pin 2 is STB; Pin 3 is +VS; Pin 4 is +OUT; Pin 5 is −OUT; Pin 6 is GND; Pin 7 is ENA; Pin 8 is +IN.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video filter amplifier applications.

Compared with ADA4432-1BCPZ-R7, the ADA4433-1BCPZ-R7 adds differential signaling capability and tighter output balance for noise immunity, while MAX9542ETE+T trades integrated protection for wider bandwidth-making ADA4433-1BCPZ-R7 optimal for automotive differential video links requiring fault resilience.

Availability

ADA4433-1BCPZ-R7 is available at Aetrix Electronics and suitable for automotive rearview cameras, video ECUs, and surveillance systems requiring stable component supply, AEC-Q100 compliance, and production-ready lead times.

Supply support for ADA4433-1BCPZ-R7 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 semiconductors, serving precision instrumentation, industrial automation, and automotive markets.

The ADA443x-1 product line delivers integrated video reconstruction filters with automotive-grade protection, designed specifically for robust SD video transmission in harsh environments like rearview camera modules and ADAS video ECUs.

FAQ

What is the function of the STB pin on the ADA4433-1BCPZ-R7?

The STB (short-to-battery) pin on the ADA4433-1BCPZ-R7 is an open-drain logic output that asserts high (≥3.3 V) when either output experiences a voltage exceeding the +VS supply by the internal threshold (~5.4 V with 37.5 Ω back-termination). It remains active during device disable and provides real-time fault indication for wire diagnostics in automotive camera systems. The ADA4433-1BCPZ-R7's STB flag responds within 150 ns of fault onset and deasserts within 300 ns after fault removal.

Can the ADA4433-1BCPZ-R7 accept single-ended input signals?

Yes, the ADA4433-1BCPZ-R7 supports single-ended input configuration: bias the −IN pin at the midpoint of the +IN signal's voltage range (e.g., +V_S/2 for rail-centered signals) to enable symmetrical differential output swing. This preserves full output headroom in low-voltage (2.6 V) operation and avoids clipping. The ADA4433-1BCPZ-R7's input common-mode range (0 V to 2.2 V) and 800 kΩ differential input resistance ensure compatibility with standard DAC outputs and ac-coupled sources.

What is the maximum output voltage swing of the ADA4433-1BCPZ-R7 at 3.3 V supply?

At +V_S = 3.3 V and R_L,dm = 150 Ω, each single-ended output of the ADA4433-1BCPZ-R7 delivers 0.54 V to (3.3 V − 0.55 V) = 0.54 V to 2.75 V, resulting in a 2.21 V p-p differential swing centered at 1.65 V (midsupply). This meets NTSC/PAL peak-to-peak requirements (1.0 V to 1.4 V) with ample margin for cable loss and termination mismatch. The ADA4433-1BCPZ-R7 maintains this swing across −40°C to +125°C.

How does the ADA4433-1BCPZ-R7 handle short-to-ground faults?

The ADA4433-1BCPZ-R7 limits sink/source current per output to ±60 mA and total differential current to 50 mA during short-to-ground events, preventing thermal damage without latch-up. Unlike basic current limiting, its protection remains active during ENA disable and survives indefinite shorts at 37.5 Ω termination. Quiescent current rises to 60 mA under short-to-ground fault-measured at the +VS pin-enabling fault-current-based detection in system-level monitoring. The ADA4433-1BCPZ-R7 resumes normal operation automatically upon fault removal.

Is the ADA4433-1BCPZ-R7 pin-compatible with any other Analog Devices video filters?

Yes, the ADA4433-1BCPZ-R7 shares identical 8-lead LFCSP pinout and footprint with the ADA4432-1BCPZ-R7, enabling drop-in replacement in layouts designed for single-ended output-provided the system can accommodate differential outputs and updated biasing. Both devices use the same ENA, STB, +VS, GND, and input/output pin assignments (though ADA4432-1 uses IN/OUT instead of +IN/−IN/+OUT/−OUT). This allows flexible design reuse across single-ended and differential video paths using the ADA4433-1BCPZ-R7.