参数资料
型号: AD7994BRU-0REEL
厂商: Analog Devices Inc
文件页数: 27/32页
文件大小: 0K
描述: IC ADC 12BIT 4CHAN I2C 16TSSOP
标准包装: 2,500
位数: 12
采样率(每秒): 188k
数据接口: I²C,串行
转换器数目: 1
功率耗散(最大): 2.2mW
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: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 带卷 (TR)
输入数目和类型: 4 个单端,单极
AD7993/AD7994
Rev. 0 | Page 4 of 32
Parameter
B Version
Unit
Test Conditions/Comments
LOGIC INPUTS (CONVST)
Input High Voltage, VINH
2.4
V min
VDD = 5 V
2.0
V min
VDD = 3 V
Input Low Voltage, VINL
0.8
V max
VDD = 5 V
0.4
V max
VDD = 3 V
Input Leakage Current, IIN
±1
A max
VIN = 0 V or VDD
Input Capacitance, CIN3
10
pF max
LOGIC OUTPUTS (OPEN-DRAIN)
Output Low Voltage, VOL
0.4
V max
ISINK = 3 mA
0.6
V max
ISINK = 6 mA
Floating-State Leakage Current
± 1
A max
Floating-State Output Capacitance3
10
pF max
Output Coding
Straight (Natural) Binary
CONVERSION RATE
See Modes of Operation section
Conversion Time
2
s typ
Throughput Rate
Mode 1 (Reading after the Conversion)
5
kSPS typ
fSCL = 100 kHz
21
kSPS typ
fSCL = 400 kHz
121
kSPS typ
fSCL = 3.4 MHz
Mode 2
5.5
kSPS typ
fSCL = 100 kHz
22
kSPS typ
fSCL = 400 kHz
147
kSPS typ
fSCL = 3.4 MHz, 188 kSPS typ @ 5 V
POWER REQUIREMENTS
VDD
2.7/5.5
V min/max
IDD
Digital inputs = 0 V or VDD
Power-Down Mode, Interface Inactive
1/2
A max
VDD = 3.3 V/5.5 V
Power-Down Mode, Interface Active
0.07/0.3
mA max
VDD = 3.3 V/5.5 V, 400 kHz fSCL
0.3/0.6
mA max
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL
Operating, Interface Inactive
0.06/0.1
mA max
VDD = 3.3 V/5.5 V, 400 kHz fSCL
0.3/0.6
mA max
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL
Operating, Interface Active
0.15/0.4
mA max
VDD = 3.3 V/5.5 V, 400 kHz fSCL
0.6/1.1
mA max
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL Mode 1
0.7/1.4
mA typ
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL Mode 2
Mode 3 (I2C Inactive, TCONVERT x 32)
0.7/1.5
mA max
VDD = 3.3 V/5.5 V
POWER DISSIPATION
Fully Operational
Operating, Interface Active
0.495/2.2
mW max
VDD = 3.3 V/5.5 V, 400 kHz fSCL
1.98/6.05
mW max
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL Mode 1
2.31/7.7
mW typ
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL Mode 2
Power-Down, Interface Inactive
3.3/11
W max
VDD = 3.3 V/5.5 V
1 Min/max ac dynamic performance, INL and DNL specifications are typical specifications when operating in Mode 2 with I2C high speed mode SCL frequencies.
Specifications outlined for Mode 2 apply to Mode 3 also. Sample delay and bit trial delay enabled.
2 See the Terminology section.
3 Guaranteed by initial characterization.
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