AD637JQ Analog Devices Inc, AD637JQ Datasheet - Page 16
![IC RMS/DC CONV PRECISION 14-CDIP](/photos/6/56/65618/505-14-cdip_sml.jpg)
AD637JQ
Manufacturer Part Number
AD637JQ
Description
IC RMS/DC CONV PRECISION 14-CDIP
Manufacturer
Analog Devices Inc
Specifications of AD637JQ
Rohs Status
RoHS non-compliant
Current - Supply
2.2mA
Voltage - Supply
±3.0V ~ 18V
Mounting Type
Through Hole
Package / Case
14-CDIP (0.300", 7.62mm)
Accuracy %
0.25%
Bandwidth
200kHz
Supply Current
2.2mA
Power Dissipation Pd
108mW
Supply Voltage Range
± 3V To ± 18V
Digital Ic Case Style
DIP
No. Of Pins
14
Input Type
RMS
Module Type
Converter
Output Type
DC
Voltage, Supply
± 18 VDC
For Use With
AD637-EVALZ - BOARD EVALUATION FOR AD637
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD637JQ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD637JQZ
Manufacturer:
NS
Quantity:
6 221
EVALUATION BOARD
Figure 23 shows a digital image of the AD637-EVALZ, an
evaluation board specially designed for the AD637. It is
available at
bench testing after connecting power and signal I/O. The circuit
is configured for dual power supplies, and standard BNC
connectors serve as the signal input and output ports.
Referring to the schematic in Figure 30, the input connector
RMS_IN is capacitively coupled to Pin 15 (V
the AD637. The DC_OUT connector is connected to Pin 11,
RMS OUT, with provisions for connections to the output buffer
between Pin 1 and Pin 16. The buffer is an uncommitted op
AD637
www.analog.com
and is fully tested and ready for
IN
of SOIC package) of
Figure 23. AD637-EVALZ
Rev. K | Page 16 of 20
amp, and is configured on the AD637-EVALZ as a low-pass
Sallen-Key filter whose f
buffer by moving the FILTER switch to the on position.
DC_OUT is still the output of the AD637, and the test loop,
BUF_OUT, is the output of the buffer. The R2 trimmer adjusts
the output offset voltage.
The LPF frequency is changed by changing the component
values of CF1, CF2, R4, and R5. See Figure 24 and Figure 30 to
locate these components. Note that a wide range of capacitor
and resistor values can be used with the AD637 buffer amplifier.
C
< 0.5 Hz. Users can connect to the