AD637JR Analog Devices Inc, AD637JR Datasheet - Page 18

• Manufacturer Part Number: AD637JR
• Description: RMS To DC Converter (RMS/DC) IC
• Manufacturer: Analog Devices Inc

Specifications of AD637JR

• No. Of Pins: 16
• Peak Reflow Compatible (260 C): No
• Ic Function: RMS To DC Converter (RMS/DC) IC
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC
• Rohs Status: RoHS non-compliant
• Current - Supply: 2.2mA
• Voltage - Supply: ±3.0V ~ 18V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: AD637-EVALZ - BOARD EVALUATION FOR AD637
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD637
SUPPLY
POWER
+
GND1 GND2 GND3 GND4
CF2
47µF
25V
50kΩ
R2
+V
–V
S
S
+V
1MΩ
S
R1
DB_OUT
4.7kΩ
R3
BUF_IN
Figure 31. AD637-EVALZ Typical Bench Configuration
10µF
25V
1
2
3
4
5
6
7
8
C1
BUFF IN
NC
COMMON
OUTPUT
OFFSET
CS
DEN INPUT
dB OUTPUT
NC
Figure 30. Evaluation Board Schematic
+
–V
–V
S
S
Rev. K | Page 18 of 20
AD637
24.3kΩ
1
2
3
R4
Z1
+V
+V
S
S
FILTER
4
BUFF OUT
OUT
+
6
RMS OUT
5
C2
10µF
25V
IN
C
+V
–V
V
NC
AV
NC
IN
S
S
16
15
14
13
12
11
10
9
AC OR DC INPUT SIGNAL SOURCE
22µF
+
FROM PRECISION CALIBRATOR
16V
CIN
24.3kΩ
C3
0.1µF
C4
0.1µF
C
22µF
16V
OR FUNCTION GENERATOR
RMS_IN
AV
R5
PRECISION DMM TO
+V
–V
MONITOR VOUT
S
S
+
DC_OUT
CF1
47µF
25V
BUF_OUT
RMS_IN
DC_OUT