AD7991YRJZ-0500RL7

更新时间： 2024-12-01 03:10:51

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	783K
描述
4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23

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4-Channel, 12-/10-/8-Bit ADC with I²C-

Compatible Interface in 8-Lead SOT-23

AD7991/AD7995/AD7999

FEATURES

FUNCTIONAL BLOCK DIAGRAM

12-/10-/8-bit ADCs with fast conversion time: 1 μs typical

4 analog input channels/3 analog input channels with

reference input

Specified for V_DDof 2.7 V to 5.5 V

Sequencer operation

Temperature range: −40°C to +125°C

I²C-compatible serial interface supports standard, fast,

and high speed modes

2 versions allow 2 I²C addresses

Low power consumption

IN0

IN1

IN2

12-/10-/8-BIT

SAR

I/P

MUX

T/H

ADC

IN3 REF

CONTROL

SCL

SDA

LOGIC AND

I C

INTERFACE

Shutdown mode: 1 μA maximum

8-lead SOT-23 package

AD7991/AD7995/AD7999

GND

APPLICATIONS

Figure 1.

System monitoring

Battery-powered systems

Data acquisition

Medical instruments

GENERAL DESCRIPTION

The AD7991/AD7995/AD7999 are 12-/10-/8-bit, low power,

successive approximation ADCs with an I²C®-compatible interface.

Each part operates from a single 2.7 V to 5.5 V power supply and

features a 1 μs conversion time. The track-and-hold amplifier

allows each part to handle input frequencies of up to 14 MHz,

and a multiplexer allows taking samples from four channels.

ADC is 0 V to V_DD. An external reference, applied through the

_IN3/V_REFinput, can also be used with this part.

PRODUCT HIGHLIGHTS

1. Four single-ended analog input channels, or three single-

ended analog input channels and one reference input channel.

2. I²C-compatible serial interface. Standard, fast, and high

speed modes.

3. Automatic shutdown.

4. Reference derived from the power supply or external

reference.

Each AD7991/AD7995/AD7999 provides a 2-wire serial

interface compatible with I²C interfaces. The AD7991 and

AD7995 come in two versions and each version has an

individual I²C address. This allows two of the same devices to be

connected to the same I²C bus. Both versions support standard,

fast, and high speed I²C interface modes. The AD7999 comes in

one version.

5. 8-lead SOT-23 package.

Table 1. Related Devices

Device

AD7998

AD7997

AD7994

AD7993

AD7992

Resolution

Input Channels

The AD7991/AD7995/AD7999 normally remain in a shutdown

state, powering up only for conversions. The conversion process

is controlled by a command mode, during which each I²C read

operation initiates a conversion and returns the result over the

I²C bus.

When four channels are used as analog inputs, the reference for

the part is taken from V_DD; this allows the widest dynamic input

range to the ADC. Therefore, the analog input range to the

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

rights of third parties that may result from its 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 and registeredtrademarks arethe 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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AD7991YRJZ-0500RL7 替代型号

型号	品牌	替代类型	描述	数据表
AD7991YRJZ-1RL	ADI	类似代替	4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23
AD7991YRJZ-1500RL7	ADI	类似代替	4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23
AD7991YRJZ-0RL	ADI	类似代替	4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23

与AD7991YRJZ-0500RL7相关器件

型号	品牌	获取价格	描述	数据表
AD7991YRJZ-0RL	ADI	获取价格	4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23
AD7991YRJZ-1	ADI	获取价格	4-Channel, 12-/10-/8-Bit ADC with I2CCompatible Interface in 8-Lead SOT23
AD7991YRJZ-1500RL7	ADI	获取价格	4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23
AD7991YRJZ-1RL	ADI	获取价格	4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23
AD7992	ADI	获取价格	2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP
AD7992_05	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible
AD7992BRM-0	ADI	获取价格	2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP
AD7992BRM-0REEL	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible
AD7992BRM-1	ADI	获取价格	2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP
AD7992BRM-1REEL	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible

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