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
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