AD7274BRM

更新时间： 2024-02-22 15:08:12

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	235K
描述
3MSPS,10-/12-Bit ADCs in 8-Lead TSOT

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中文翻译

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技术参数
数据手册
替代型号

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AD7274BRM 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	MO-193BA, TSOT-8	针数：	8
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.38
最大模拟输入电压：	2.5 V	最小模拟输入电压：
最长转换时间：	0.27 µs	转换器类型：	ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码：	R-PDSO-G8	JESD-609代码：	e0
长度：	2.9 mm	最大线性误差 (EL)：	0.0244%
模拟输入通道数量：	1	位数：	12
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
输出位码：	BINARY	输出格式：	SERIAL
封装主体材料：	PLASTIC/EPOXY	封装代码：	VSSOP
封装等效代码：	TSSOP8,.1	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	220
电源：	2.5/3.3 V	认证状态：	Not Qualified
采样速率：	3 MHz	采样并保持/跟踪并保持：	TRACK
座面最大高度：	1 mm	子类别：	Analog to Digital Converters
标称供电电压：	3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
宽度：	1.6 mm	Base Number Matches：	1

AD7274BRM 数据手册

PRELIMINARYTECHNICALDATA

Preliminary Technical Data

AD7273/AD7274

Power-Down Mode

In order to exit this mode of operation and power the

AD7273/AD7274 up again, a dummy conversion is per-

formed. On the falling edge of CS the device will begin to

power up, and will continue to power up as long as CS is

held low until after the falling edge of the 1ꢁth SCLK.

The device will be fully powered up once 16 SCLKs have

elapsed and valid data will result from the next conversion

as shown in Figure 14. If CS is brought high before the

1ꢁth falling edge of SCLK, then the AD7273/AD7274

will go back into Power- Down again. This avoids acci-

dental power up due to glitches on the CS line or an inad-

vertent burst of 8 SCLK cycles while CS is low. So,

although the device may begin to power up on the falling

edge of CS, it will power down again on the rising edge

of CS as long as it occurs before the 1ꢁth SCLK falling

edge.

This mode is intended for use in applications where

slower throughput rates are required; either the ADC is

powered down between each conversion, or a series of

conversions may be performed at a high throughput rate

and then the ADC is powered down for a relatively long

duration between these bursts of several conversions.

When the AD7273/AD7274 is in Power-Down, all analog

circuitry is powered down.

To enter Power-Down, the conversion process must be

interrupted by bringing CS high anywhere after the second

falling edge of SCLK and before the 1ꢁth falling edge of

SCLK as shown in Figure 13. Once CS has been brought

high in this window of SCLKs, then the part will enter

Power-Down and the conversion that was intiated by the

falling edge of CS will be terminated and SDATA will go

back into three-state. If CS is brought high before the

second SCLK falling edge, then the part will remain in

Normal Mode and will not power-down. This will avoid

accidental power-down due to glitches on the CS line.

SCLK

THREE-STATE

SDATA

INVALID DATA

Figure 13. Entering Power Down Mode

THE PART IS FULLY

POWERED UPWITH V

THE PART BEGINS

TO POWER UP

FULLY ACQUIRED

SCLK

SDATA

INVALID DATA

VALID DATA

Figure 14. Exiting Power Down Mode

REV. PrB

–17–

1...14 15 161718 19 20

中文翻译

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AD7274BRM 替代型号

型号	品牌	替代类型	描述	数据表
AD7274BRMZ-REEL	ADI	类似代替	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7274BRMZ	ADI	类似代替	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT

与AD7274BRM相关器件

型号	品牌	获取价格	描述	数据表
AD7274BRMZ	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7274BRMZ	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, ROHS COMPLIANT, MO-187AA,
AD7274BRMZ2	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7274BRMZ-REEL	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, ROHS COMPLIANT, MO-187AA,
AD7274BRMZ-REEL	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7274BRMZ-REEL2	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7274BUJ-500RL7	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7274BUJ-500RL7	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-193-BA, TSOT-8
AD7274BUJ-REEL	ADI	获取价格	3MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7274BUJZ-500RL7	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT

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