参数资料
型号: AD7887WARMZ-RL
厂商: Analog Devices Inc
文件页数: 19/24页
文件大小: 0K
描述: IC ADC 12BIT 2CH SRL 8-MSOP
标准包装: 3,000
位数: 12
采样率(每秒): 125k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 3.5mW
电压电源: 单电源
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
输入数目和类型: 2 个单端,单极
AD7887
Rev. D | Page 4 of 24
Parameter
B Version1
Unit
Test Conditions/Comments
CONVERSION RATE
Throughput Time
16
SCLK cycles
Conversion time plus acquisition time is 125 kSPS,
with 2 MHz Clock
Track/Hold Acquisition Time2
1.5
SCLK cycles
Conversion Time
14.5
SCLK cycles
7.25 μs (2 MHz Clock)
POWER REQUIREMENTS
VDD
+2.7/+5.25
V min/max
IDD
Normal Mode5 (Mode 2)
Static
700
μA max
Operational (fSAMPLE = 125 kSPS)
850
μA typ
Internal reference enabled
700
μA typ
Internal reference disabled
Using Standby Mode (Mode 4)
450
μA typ
fSAMPLE = 50 kSPS
Using Shutdown Mode (Modes 1, 3)
120
μA typ
fSAMPLE = 10 kSPS
12
μA typ
fSAMPLE = 1 kSPS
Standby Mode6
210
μA max
VDD = 2.7 V to 5.25 V
Shutdown Mode6
1
μA max
VDD = 2.7 V to 3.6 V
2
μA max
VDD = 4.75 V to 5.25 V
Normal Mode Power Dissipation
3.5
mW max
VDD = 5 V
2.1
mW max
VDD = 3 V
Shutdown Power Dissipation
5
μW max
VDD = 5 V
3
μW max
VDD = 3 V
Standby Power Dissipation
1.05
mW max
VDD = 5 V
630
μW max
VDD = 3 V
1 Temperature range for A and B versions is 40°C to +125°C.
2 See the Terminology section.
3 SNR calculation includes distortion and noise components.
4 Sample tested at +25°C to ensure compliance.
5 All digital inputs at GND except CS at VDD. No load on the digital outputs. Analog inputs at GND.
6 SCLK at GND when SCLK off. All digital inputs at GND except for CS at VDD. No load on the digital outputs. Analog inputs at GND.
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