Datasheet > ADA4830

ADA4830

更新时间： 2024-11-28 07:07:59

品牌	Logo	应用领域
其他 - ETC		电池放大器
页数	文件大小	规格书
16页	311K
描述
High Speed Difference Amplifier with Input Short to Battery Protection

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ADA4830 数据手册

High Speed Difference Amplifier with Input

Short to Battery Protection

Data Sheet

ADA4830-1

FEATURES

FUNCTIONAL BLOCK DIAGRAM

ENA

+VS

STB

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

+VS

ADA4830-1

VREF

BUFFER

R/2

220 V/µs slew rate (2 V step)

Excellent video specifications

0.1 dB flatness to 20 MHz

INP

INN

VOUT

SNR of 73 dB to 15 MHz

R/2

Differential gain of 0.1%

Differential phase of 0.1°

GND

Wide supply range: 2.9 V to 5.5 V

Figure 1.

Power-down mode

Space saving 3 mm × 3 mm LFCSP package

Wide operating temperature range: −40°C to +125°C

APPLICATIONS

Automotive vision systems

Automotive infotainment

Surveillance systems

GENERAL DESCRIPTION

The ADA4830-1 is a monolithic high speed difference amplifier

that integrates input overvoltage (short to battery) protection of

up to 18 V with a wide input common-mode voltage range and

excellent ESD robustness. The ADA4830-1 is intended for use

as a receiver 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 combines the high speed and the precision that

allow accurate reproduction of CVBS video signals, yet rejects

unwanted common-mode error voltages.

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 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

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.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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与ADA4830相关器件

型号	品牌	获取价格	描述	数据表
ADA4830-1	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-1BCP-EBZ	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-1BCPZ-R2	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-1BCPZ-R7	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-1WBCPZ-R7	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-2	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-2BCPZ-R2	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-2BCPZ-R7	ADI	获取价格	High Speed Difference Amplifier with Input
ADA4830-2WBCPZ-R7	ADI	获取价格	High Speed Difference Amplifier with Input
ADA484	ADI	获取价格	16-Bit, 1 MSPS PulSAR ADC in MSOP QFN

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