参数资料
型号: AD7291BCPZ-RL7
厂商: Analog Devices Inc
文件页数: 25/29页
文件大小: 0K
描述: IC ADC I2C/SRL 22.22K 20LFCSP
标准包装: 1,500
位数: 12
采样率(每秒): 22.22k
数据接口: I²C,串行
转换器数目: 1
功率耗散(最大): 12.6mW
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: 20-WFQFN 裸露焊盘,CSP
供应商设备封装: 20-LFCSP-WQ(4x4)
包装: 带卷 (TR)
输入数目和类型: 8 个单端,单极
配用: EVAL-AD7291SDZ-ND - BOARD EVAL FOR AD7291
AD7291
Data Sheet
Rev. B | Page 4 of 28
Parameter
Min
Typ
Max
Test Conditions/Comments
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE 0.3
V
VDRIVE < 1.8
VDRIVE 0.2
V
VDRIVE ≥ 1.8
Output Low Voltage, VOL
0.4
V
ISINK = 3 mA
0.6
V
ISINK = 6 mA
Floating State Leakage Current
±0.01
±1
μA
Floating State Output Capacitance3
8
pF
TEMPERATURE SENSOR—INTERNAL
Operating Range
40
+125
°C
Accuracy
±1
±2
°C
TA = 40°C to +85°C
±1
±3
°C
TA = 85°C to 125°C
Resolution
0.25
°C
LSB size
CONVERSION RATE
Conversion Time
3.2
μs
Autocycle Update Rate6
50
μs
Throughput Rate
22.22
kSPS
fSCL = 400 kHz
POWER REQUIREMENTS
Digital inputs = 0 V or VDRIVE
VDD
2.8
3
3.6
V
1.65
3
3.6
V
Normal Mode (Operational)
2.9
3.5
mA
Normal Mode (Static)
2.9
3.3
mA
Full Power-Down Mode
0.3
1.6
μA
TA = 40°C to +25°C
1.6
4.5
μA
TA = >25°C to 85°C
4.9
12
μA
TA = >85°C to 125°C
Power Dissipation8
Normal Mode (Operational)
8.7
10.5
mW
VDD = 3 V, VDRIVE = 3 V
10.4
12.6
mW
Normal Mode (Static)
10.4
11.9
mW
Full Power-Down Mode
1.1
5.8
μW
TA = 40°C to +25°C
5.8
16.2
μW
TA = >25°C to 85°C
17.6
43.2
μW
TA = >85°C to 125°C
1 All specifications expressed in decibels are referred to full-scale input, FSR, and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
2 See the Terminology section.
3 Sample tested during initial release to ensure compliance.
4 Refers to Pin VREF specified for 25oC.
5 A correction factor may be required on the temperature sensor results when using an external VREF (see the Temperature Sensor Averaging section).
6 Sampled during initial release to ensure compliance; not subject to production testing.
7 ITOTAL is the total current flowing in VDD and VDRIVE.
8 ITOTAL and power dissipation are specified with VDD = VDRIVE = 3.6 V, unless otherwise noted.
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