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AS1523

更新时间： 2024-09-17 04:06:43
品牌 Logo 应用领域
艾迈斯 - AMSCO 转换器
页数 文件大小 规格书
2页 93K
描述
10-Bit, Single-Supply, Low-Power, 400/300ksps, 4-Channel A/D Converters

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AS1523 数据手册

 浏览型号AS1523的Datasheet PDF文件第2页 
Product Brief  
AS1522, AS1523  
10-Bit, Single-Supply, Low-Power, 400/300ksps,  
4-Channel A/D Converters  
1 General Description  
2 Key Features  
ꢀ Single-Supply Operation:  
- +4.5 to +5.5V (AS1522)  
- +2.7 to +3.6V (AS1523)  
The AS1522/AS1523 are low-power, 4/2-channel, 400/  
300ksps, 10-bit analog-to-digital (A/D) converters specif-  
ically designed to operate with single-supply devices.  
Superior AC characteristics, very low power consump-  
tion, and highly-reliable packaging make these ultra-  
small devices perfect for battery-powered remote-sen-  
sor and data-acquisition devices.  
ꢀ Sampling Rate:  
- 400ksps (AS1522)  
- 300ksps (AS1523)  
ꢀ Software-Configurable Analog Input Types:  
- 4-Channel Single-Ended  
The successive-approximation register (SAR), high-  
speed sampling, high-bandwidth track/hold circuitry, and  
multi-mode operation combine to make these devices  
highly-flexible and configurable.  
- 4-Channel Pseudo Differential Referenced to COM  
- 2-Channel Pseudo Differential  
- 2-Channel Fully Differential  
Both devices require low supply current (2.8mA @  
400ksps, AS1522; 2.2mA @ 300ksps, AS1523) and fea-  
ture a reduced-power mode and a power-down mode to  
lower power consumption at slower throughput rates.  
ꢀ Software-Configurable Input Range  
ꢀ Internal +2.5V Reference  
ꢀ Low-Current Operation:  
- 2.8mA @ 400ksps (AS1522)  
- 2.2mA @ 300ksps (AS1523)  
- 0.4mA in Reduced-Power Mode  
- 0.5µA in Full Power-Down Mode  
The devices operate from a single supply (+4.5 to +5.5V,  
AS1522; +2.7 to +3.6V, AS1523). Both devices contain  
an internal 2.5V reference, an integrated reference  
buffer, and feature support for an external reference (1V  
to VDD).  
ꢀ SPI/QSPI/Microwire/TMS320-Compatible  
ꢀ 16-pin TSSOP Package  
Data accesses are made via the high-speed, 4-wire,  
SPI, QSPI-, and Microwire-compatible serial interface.  
The devices are available in a 16-pin TSSOP package.  
3 Applications  
The devices are ideal for remote sensors, data-acquisi-  
tion and data-logging devices, pen-digitizers, process  
control, or any other space-limited A/D application with  
low power-consumption requirements.  
Figure 1. Block Diagram and Pin Assignments  
14  
11  
Output  
Shift  
Register  
CSN  
15  
DOUT  
12  
SCLK  
13  
SSTRB  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
VDD1  
CH0  
CH1  
CH2  
VDD2  
SCLK  
CSN  
Input Shift  
Register  
AS1522/  
AS1523  
DIN  
7
VDD3  
Control  
Logic  
AS1522/  
AS1523  
DIN  
12-Bit  
SAR  
16  
SSTR  
CH3  
2:5  
VDD2  
Analog  
Input  
COM  
Track/  
Hold  
DOUT  
GND  
CH0:CH3  
6
IN  
OUT  
REF  
VDD3  
REF  
1
COM  
17kΩ  
REFADJ  
VDD1  
+1.2V  
REF  
9
Av ≈ 2.05  
REFADJ  
8
10  
+2.50V  
REF  
GND  
www.austriamicrosystems.com  
Revision 1.00  
1 - 2  
12

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