AD8210YRZ Analog Devices Inc, AD8210YRZ Datasheet - Page 13

• Manufacturer Part Number: AD8210YRZ
• Description: IC CURRENT MONITOR 0.5% 8SOIC
• Manufacturer: Analog Devices Inc

Specifications of AD8210YRZ

• Design Resources: High Voltage, High Precision Current Sensing with Output Level Shifting Using AD8210 and AD8274 (CN0116)
• Function: Current Monitor
• Sensing Method: High/Low-Side
• Accuracy: ±0.5%
• Voltage - Input: -2 ~ 65 V
• Current - Output: 5mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• No. Of Amplifiers: 2
• Input Offset Voltage: 1mV
• Gain Db Max: 20dB
• Bandwidth: 500kHz
• Cmrr: 120dB
• Slew Rate: 3V/µs
• Supply Voltage Range: 4.5V To 5.5V
• Supply Current: 2mA
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

INPUT FILTERING
In typical applications, such as motor and solenoid current
sensing, filtering at the input of the AD8210 can be beneficial
in reducing differential noise, as well as transients and current
ripples flowing through the input shunt resistor. An input low-
pass filter can be implemented as shown in Figure 32.
The 3 dB frequency for this filter can be calculated by
f
_
3
dB
=
π 2
×
R
FILTER
1
×
C
FILTER
R
FILTER
≤ 10Ω
R
SHUNT
+IN
GND
C
Figure 32. Input Low-Pass Filtering
FILTER
< R
FILTER
–IN
Rev. B | Page 13 of 16
(1)
R
FILTER
AD8210
G = +20
≤ 10Ω
V
V
Adding outside components, such as R
introduces additional errors to the system. To minimize these
errors as much as possible, it is recommended that R
10 Ω or lower. By adding the R
internal input resistors of the AD8210, a gain error is
introduced. This can be calculated by
REF
REF
V
S
1
2
Gain
0.1µF
Error
V
REF
OUTPUT
0V ≤ V
(%)
REF
=
100
≤ V
S
−
⎛
⎜
⎜
⎝
100
FILTER
×
2
in series with the 2 kΩ
kΩ
FILTER
2
−
kΩ
R
FILTER
and C
⎞
⎟
⎟
⎠
FILTER
AD8210
FILTER
,
be
(2)