Datasheet > AD7294BCPZRL

AD7294BCPZRL

更新时间： 2024-02-16 02:58:16

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
49页	1378K
描述
12-Bit Monitor and Control System with Multichannel ADC, DACs, Temperature Sensor, and Current Sense

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AD7294BCPZRL 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	VQCCN,	针数：	56
Reach Compliance Code：	unknown	风险等级：	5.82
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	S-XQCC-N56
JESD-609代码：	e3	长度：	8 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	56	最高工作温度：	105 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	VQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, VERY THIN PROFILE	峰值回流温度（摄氏度）：	225
座面最大高度：	1 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	4.5 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	MATTE TIN
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	8 mm

AD7294BCPZRL 数据手册

12-Bit Monitor and Control System with Multichannel

ADC, DACs, Temperature Sensor, and Current Sense

Data Sheet

AD7294

FEATURES

APPLICATIONS

12-bit SAR ADC with 3 μs conversion time

4 uncommitted analog inputs

Differential/single-ended

Cellular base stations

GSM, EDGE, UMTS, CDMA, TD-SCDMA, W-CDMA, WiMAX

Point-to-multipoint and other RF transmission systems

12 V, 24 V, 48 V automotive applications

Industrial controls

_REF, 2 × V_REFinput ranges

2 high-side current sense inputs

5 V to 59.4 V operating range

0.5% max gain error

GENERAL DESCRIPTION

The AD7294 contains all the functions required for general-

purpose monitoring and control of current, voltage, and

temperature integrated into a single-chip solution. The part

includes low voltage ( 200 mV) analog input sense amplifiers

for current monitoring across shunt resistors, temperature sense

inputs, and four uncommitted analog input channels multiplexed

into a SAR analog-to-digital converter (ADC) with a 3 μs conver-

sion time. A high accuracy internal reference is provided to drive

both the digital-to-analog converter (DAC) and ADC. Four 12-bit

DACs provide the outputs for voltage control. The AD7294 also

includes limit registers for alarm functions. The part is designed

on Analog Devices, Inc., high voltage DMOS process for high

voltage compliance, 59.4 V on the current sense inputs, and up

to a 15 V DAC output voltage.

200 mV input range

2 external diode temperature sensor inputs

−55°C to +150°C measurement range

2°C accuracy

Series resistance cancellation

1 internal temperature sensor

2°C accuracy

Built-in monitoring features

Minimum/maximum recorder for each channel

Programmable alert thresholds

Programmable hysteresis

Four 12-bit monotonic 15 V DACs

5 V span, 0 V to 10 V offset

8 μs settling time

10 mA sink and source capability

Power-on resets (POR) to 0 V

Internal 2.5 V reference

2-wire fast mode I²C interface

Temperature range: −40°C to +105°C

Package type: 64-lead TQFP or 56-lead LFCSP

The AD7294 is a highly integrated solution that offers all the

functionality necessary for precise control of the power amplifier

in cellular base station applications. In these types of applications,

the DACs provide 12-bit resolution to control the bias currents

of the power transistors. Thermal diode-based temperature sensors

are incorporated to compensate for temperature effects. The ADC

monitors the high-side current and temperature. All this function-

ality is provided in a 64-lead TQFP or a 56-lead LFCSP operating

over a temperature range of −40°C to +105°C.

Rev. H

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

rights of 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

www.analog.com

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