AD8436JCPZ-R7 Analog Devices Inc, AD8436JCPZ-R7 Datasheet - Page 15

• Manufacturer Part Number: AD8436JCPZ-R7
• Description: 65T4276
• Manufacturer: Analog Devices Inc

Specifications of AD8436JCPZ-R7

• Accuracy %: 0.5%
• Bandwidth: 1MHz
• Supply Current: 325µA
• Power Dissipation Pd: 18mW
• Supply Voltage Range: 4.8V To 36V
• Digital Ic Case Style: LFCSP
• No. Of Pins: 20
• Operating Temperature Range: 0°C To +70°C

Configure the output buffer as shown in Figure 36 to invert the
dc output.
Current Output Option
If a current output is required, connect the current output, OUT
(Pin 9), to the destination load. To maximize precision, provide
a means for external calibration to replace the internal trimmed
resistor, which is bypassed. This configuration is useful for conve-
nient summing of the
for polarity inversion.
Single Supply
Connections for single supply operation are shown in Figure 38
and are similar to those for dual power supply when the device is
ac-coupled. The analog inputs are all biased to half the supply
voltage, but the output remains referred to ground because the
output of the
connection is required at Pin 11 (IGND) to suppress ambient noise.
CORE
RMS
Figure 37. Connections for Current Output Showing Voltage Inversion
OGND
2
8kΩ
8
AD8436
OGND
16kΩ
Figure 36. Inverting Output Configuration
OUT
C AVG
16kΩ
19
CORE
9
8
CCF
32.4kΩ
18
AD8436
is a current source. An additional bypass
DIRECTION OF
DC OUTPUT
CURRENT
DO NOT CONNECT FOR
CURRENT OUTPUT
13
12
result with another voltage, or
OBUFIN+
OBUFIN–
16kΩ
9
OUT
–
+
16kΩ
15kΩ
–
+
OBUFOUT
(OPTIONAL)
INVERTED DC
VOLTAGE
OUTPUT
2kΩ
14
Rev. 0 | Page 15 of 20
Recommended Application
Figure 39 shows a circuit for a typical application for frequencies
as low as power line, and above. The recommended averaging,
crest factor and LPF capacitor values are 10 μF, 0.1 μF and
3.3 μF. Refer to the Using the Output Buffer section if additional
low-pass filtering is required.
AC IN
10MΩ
10µF
0.47µF
0.47µF
4.7µF
10MΩ
Figure 38. Connections for Single Supply Operation
1
2
3
4
5
DNC
RMS
IBUFOUT
IBUFIN–
IBUFIN+
Figure 39. Typical Application Circuit
2
3
4
5
IBUFGN
SUM
RMS
IBUFOUT
IBUFIN–
IBUFIN+
6
20
10µF
OGND
19
CAVG
CAV
+
19
DNC
8
7
AD8436
0.1µF
AD8436
10µF
18
OGND
CCF
8
3.3µF
17
VCC
VEE
VCC
VCC
OUT
9
17
10
IGND
OBUFOUT
OUT
IBUFV+
16
OBUFIN–
OBUFIN+
10
OBUFV+
VEE
IGND
11
9
VEE
15
14
13
12
11
AD8436
4.7µF
DC
OUT