Datasheet

Data Sheet AD8226
Rev. C | Page 5 of 28
+V
S
= 2.7 V, −V
S
= 0 V, V
REF
= 0 V, T
A
= 25°C, G = 1, R
L
= 10 kΩ, specifications referred to input, unless otherwise noted.
Table 3.
ARZ, ARMZ BRZ, BRMZ
Parameter Conditions Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION RATIO (CMRR) V
CM
= 0 V to 1.7 V
CMRR, DC to 60 Hz
G = 1 86 90 dB
G = 10 106 106 dB
G = 100 120 120 dB
G = 1000 120 120 dB
CMRR at 5 kHz
G = 1 80 80 dB
G = 10
90
90
dB
G = 100
90
90
dB
G = 1000
100
100
dB
NOISE Total noise: e
N
= √(e
NI
2
+ (e
NO
/G)
2
)
Voltage Noise
1 kHz
Input Voltage Noise, e
NI
22
24
22
24
nV/√Hz
Output Voltage Noise, e
NO
120 125 120 125 nV/√Hz
RTI f = 0.1 Hz to 10 Hz
G = 1 2.0 2.0 µV p-p
G = 10 0.5 0.5 µV p-p
G = 100 to 1000 0.4 0.4 µV p-p
Current Noise f = 1 kHz 100 100 fA/√Hz
f = 0.1 Hz to 10 Hz 3 3 pA p-p
VOLTAGE OFFSET
Total offset voltage: V
OS
= V
OSI
+ (V
OSO
/G)
Input Offset, V
OSI
100 50 µV
Average Temperature Coefficient
T
A
= −40°C to +125°C
0.5
2
0.5
1
µV/°C
Output Offset, V
OSO
600 400 µV
Average Temperature Coefficient T
A
= −40°C to +125°C 2 10 1 5 µV/°C
Offset RTI vs. Supply (PSR) V
S
= 0 V to 1.7 V
G = 1 100 100 dB
G = 10 115 115 dB
G = 100 120 120 dB
G = 1000 120 120 dB
INPUT CURRENT
Input Bias Current
1
T
A
= +25°C
5
20
27
5
20
27
nA
T
A
= +125°C
5
15
25
5
15
25
nA
T
A
= −40°C 5 30 35 5 30 35 nA
Average Temperature Coefficient T
A
= −40°C to +125°C 70 70 pA/°C
Input Offset Current T
A
= +25°C 1 0.5 nA
T
A
= +125°C 1.5 0.5 nA
T
A
= −40°C 1 0.1 nA
Average Temperature Coefficient T
A
=−40°C to +125°C 5 5 pA/°C
REFERENCE INPUT
R
IN
100
100
kΩ
I
IN
7
7
µA
Voltage Range
−V
S
+V
S
−V
S
+V
S
V
Reference Gain to Output 1 1 V/V
Reference Gain Error 0.01 0.01 %
DYNAMIC RESPONSE
Small-Signal −3 dB Bandwidth
G = 1 1500 1500 kHz
G = 10 160 160 kHz
G = 100 20 20 kHz
G = 1000
2
2
kHz