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AD8233 PDF预览

AD8233

更新时间: 2022-02-26 13:51:54
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
30页 772K
描述
Fitness and activity heart rate monitors

AD8233 数据手册

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AD8233  
Data Sheet  
Parameter  
Symbol Test Conditions/Comments  
Min  
Typ  
0.01  
120  
7
Max  
Unit  
Slew Rate  
Voltage Noise Density (RTI)  
Peak-to-Peak Voltage Noise (RTI)  
SR  
V/μs  
en  
f = 1 kHz  
nV/√Hz  
μV p-p  
μV p-p  
en p-p  
f = 0.1 Hz to 10 Hz  
f = 0.5 Hz to 40 Hz  
9
RIGHT LEG DRIVE AMPLIFIER (A2)  
Quiescent Supply Current  
Output Swing  
7.5  
10  
+VS − 0.1  
μA  
V
RL = 50 kΩ  
0.1  
Short-Circuit Current  
Integrator Input Resistor  
Gain Bandwidth Product  
REFERENCE BUFFER (A3)  
Offset Error  
Input Bias Current  
Short-Circuit Current Limit  
Voltage Range  
IOUT  
11  
150  
20  
mA  
kΩ  
kHz  
120  
180  
GDP  
VOS  
IB  
IOUT  
RL > 50 kΩ  
RL = 50 kΩ  
1
100  
12  
mV  
pA  
mA  
V
0.1  
+VS − 0.7  
DC LEADS OFF COMPARATORS  
Threshold Voltage  
Hysteresis  
+VS − 0.27  
125  
1.5  
V
mV  
μs  
Propagation Delay  
AC LEADS OFF DETECTOR  
Square Wave Frequency  
Square Wave Amplitude  
Input Currents in Shutdown Mode2  
fAC  
IAC  
IDC  
50  
10  
8
100  
200  
250  
−300  
20  
175  
kHz  
nA p-p  
nA  
+IN, SDN = low  
−IN, SDN = low  
nA  
Impedance Threshold  
Detection Delay  
Between +IN and −IN, SDN = high  
MΩ  
ꢀs  
100  
FAST RESTORE CIRCUIT  
Switches  
S1 and S2  
On Resistance  
Off Leakage  
RON  
10  
100  
12  
kΩ  
pA  
Window Comparator  
Threshold Voltage  
Propagation Delay  
Switch Timing Characteristics  
From either rail  
100  
2
mV  
μs  
Feedback Recovery Switch On Time tS1  
+VS = 3 V  
+VS = 1.8 V  
+VS = 3 V  
+VS = 1.8 V  
+VS = 3 V  
+VS = 1.8 V  
160  
80  
80  
40  
3
ms  
ms  
μs  
Filter Recovery Switch On Time  
Fast Restore Reset  
tS2  
tRST  
1.5  
LOGIC INTERFACE  
Input Characteristics  
Input Voltage (AC/DC, FR, and  
RLD SDN)  
Low  
High  
VIL  
VIH  
0.41 × +VS  
0.45 × +VS  
V
V
Input Voltage (SDN)  
Low  
High  
VIL  
VIH  
0.6 × +VS  
0.3 × +VS  
V
V
Output Characteristics  
Output Voltage  
Low  
LOD terminal  
RL = 100 kΩ  
VOL  
VOH  
0.05  
+VS − 0.05  
V
V
High  
Rev. 0 | Page 4 of 29  

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