ADA4830-1

RECOMMENDED FOR NEW DESIGNS

High Speed Difference Amplifier with Input Short to Battery Protection

Data Sheet (Rev. C) Product Selection Table

Part Models: 3
1ku List Price: Starting From $0.75

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Overview

Input overvoltage (short to battery) protection of up to 18 V
Short to battery output flag for wire diagnostics
Wide input common mode range with single 5 V supply
High-performance video amplifier with 0.5 V/V gain
-- −3 dB bandwidth of 84 MHz
-- 220 V/µs slew rate (2 V step)
Excellent video specifications
0.1 dB flatness to 20 MHz
SNR of 73 dB to 15 MHz
Differential gain of 0.1%
Differential phase of 0.1°
Power-down mode
Space saving 3 mm × 3 mm LFCSP package
Wide operating temperature range: −40°C to +125°C

The ADA4830-1 (single) and ADA4830-2 (dual) are monolithic, high speed difference amplifiers that integrate input overvoltage (short-to-battery) protection of up to 18 V with a wide input common-mode voltage range and excellent ESD robustness. They are intended for use as receivers for differential or pseudo differential CVBS and other high speed video signals in harsh, noisy environments such as automotive infotainment and vision systems. The ADA4830-1 and ADA4830-2 combine high speed and precision, which allows for accurate reproduction of CVBS video signals, yet rejects unwanted common-mode error voltages.

The short to battery protection that is integrated into the ADA4830-1 employs fast switching circuitry to clamp and hold internal voltage nodes at a safe level when an input overvoltage condition is detected. This protection allows the inputs of the ADA4830-1 to be directly connected to a remote video source, such as a rearview camera, without the need for large expensive series capacitors. The ADA4830-1 can withstand direct short to battery voltages as high as 18 V on its input pins.

The ADA4830-1 is designed to operate at supply voltages as low as 2.9 V and as high as 5.5 V, using only 6.8 mA of supply current per channel. The device provides true single-supply capability, allowing the input signal to extend 8.5 V below the negative rail and to 8.5 V above ground on a single 5 V supply. At the output, the amplifier can swing to within 250 mV of either supply rail into a 150 Ω load.

The ADA4830-1 presents a gain of 0.5 V/V at its output. This is designed to keep the video signal within the allowed range of the video decoder, which is typically 1 V p-p or less.

The ADA4830-1 is available in a 3 mm × 3 mm, 8-lead LFCSP package and is specified for operation over the automotive temperature range of −40°C to +125°C.

Applications

Automotive vision systems
Automotive infotainment
Surveillance systems

Part Models: 3
1ku List Price: Starting From $0.75

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADA4830-1BCPZ-R2	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4830-1BCPZ-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4830-1WBCPZ-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 12, 2014 - 13_0207 Assembly Transfer of Select 3x3mm LFCSP Products Amkor Philippines
		PCN13_0207_Form Material_Report Detailed Change Description Qualification Results Summary
ADA4830-1BCPZ-R7	PRODUCTION
ADA4830-1WBCPZ-R7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

ADA4830

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

ADA4830-1 Evalution Board

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Product Details

The ADA4830-1BCP-EBZ evaluation board makes it easy for designers to quickly observe the performance of the ADA4830-1 difference amplifier in real-world applications. Input signals are applied through SMA jacks (INP, INN), and the output is taken from SMA jack VOUT. Power is applied through thre red +VS pin. The black GND pin should be grounded.