AD8233 Datasheet, PDF (5/30 Pages) Analog Devices – Fitness and activity heart rate monitors

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