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AD7091BCPZ-RL7

更新时间： 2024-11-20 12:52:55
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亚德诺 - ADI /
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20页 448K
描述
1 MSPS, Ultralow Power, 12-Bit ADC in 8-Lead LFCSP

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AD7091BCPZ-RL7 数据手册

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1 MSPS, Ultralow Power,  
12-Bit ADC in 8-Lead LFCSP  
Data Sheet  
AD7091  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
V
REGCAP  
DD  
Fast throughput rate of 1 MSPS  
Specified for VDD of 2.09 V to 5.25 V  
INL of 1 LSB maximum  
AD7091  
Analog input range of 0 V to VDD  
Ultralow power  
367 μA typical at 3 V and 1 MSPS  
324 nA typical at 3 V in power-down mode  
Reference provided by VDD  
Flexible power/throughput rate management  
High speed serial interface: SPI®-/QSPI™-/MICROWIRE®-/  
DSP-compatible  
SDO  
SCLK  
CS  
12-BIT  
SERIAL  
INTERFACE  
T/H  
V
SAR  
ADC  
IN  
CLK  
OSC  
CONVERSION  
CONTROL LOGIC  
CONVST  
GND  
Figure 1.  
Busy indicator  
Power-down mode  
8-lead, 2 mm × 2 mm LFCSP package  
Temperature range: −40°C to +125°C  
1100  
1000  
900  
800  
700  
600  
500  
400  
300  
200  
100  
0
V
= 3V  
DD  
APPLICATIONS  
Battery-powered systems  
Handheld meters  
Medical instruments  
Mobile communications  
Instrumentation and control systems  
Data acquisition systems  
Optical sensors  
Diagnostic/monitoring functions  
Energy harvesting  
0
200  
400  
600  
800  
1000  
THROUGHPUT RATE (kSPS)  
Figure 2. Power Dissipation vs. Throughput Rate  
GENERAL DESCRIPTION  
The AD7091 is a 12-bit successive approximation register  
analog-to-digital converter (SAR ADC) that offers ultralow  
power consumption (typically 367 μA at 3 V and 1 MSPS) while  
achieving fast throughput rates (1 MSPS with a 50 MHz SCLK).  
The AD7091 operates from a single 2.09 V to 5.25 V power  
supply. The AD7091 also features an on-chip conversion clock  
and a high speed serial interface.  
The reference is derived internally from VDD. This design allows  
the widest dynamic input range to the ADC; that is, the analog  
input range for the AD7091 is from 0 V to VDD  
.
PRODUCT HIGHLIGHTS  
1. Lowest Power 12-Bit SAR ADC Available.  
2. High Throughput Rate with Ultralow Power Consumption.  
3. Flexible Power/Throughput Rate Management.  
Average power scales with the throughput rate. Power-down  
mode allows the average power consumption to be reduced  
when the device is not performing a conversion.  
4. Reference Derived from the Power Supply.  
5. Single-Supply Operation.  
The conversion process and data acquisition are controlled using  
CONVST  
a
signal and an internal oscillator. The AD7091 has a  
serial interface that allows data to be read after the conversion  
while achieving a 1 MSPS throughput rate. The AD7091 uses  
advanced design and process techniques to achieve very low  
power dissipation at high throughput rates.  
Rev. A  
Document Feedback  
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 ©2012–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
 
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AD7091BCPZ-RL7 替代型号

型号 品牌 替代类型 描述 数据表
AD7091BCPZ-RL ADI

完全替代

 1 MSPS, Ultralow Power, 12-Bit ADC in 8-Lead LFCSP
AD7451ART-R2 ADI

类似代替

 IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-178BA, SOT-23, 8 PIN
AD7451ARTZ-REEL7 ADI

功能相似

 Pseudo Differential Input, 1 MSPS, 10-/12-Bit ADCs in an 8-Lead SOT-23

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