AD637
NOTES
1
Accuracy specified 0-7 V rms dc with AD637 connected as shown in Figure 2.
2
Nonlinearity is defined as the maximum deviation from the straight line connecting the readings at 10 mV and 2 V.
3
Error vs. crest factor is specified as additional error for 1 V rms.
4
Input voltages are expressed in volts rms. % are in % of reading.
5
With external 2 kΩ pull down resistor tied to –V
S
.
Specifications subject to change without notice.
Specifications shown in
boldface
are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. All min
and max specifications are guaranteed, although only those shown in boldface are tested on all production units.
ABSOLUTE MAXIMUM RATINGS
ORDERING GUIDE
Model
AD637AR
AD637BR
AD637AQ
AD637BQ
AD637JD
AD637JD/+
AD637KD
AD637KD/+
AD637JQ
AD637KQ
AD637JR
AD637JR-REEL
AD637JR-REEL7
AD637KR
AD637SD
AD637SD/883B
AD637SQ/883B
AD637SCHIPS
5962-8963701CA*
Temperature
Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
0°C to +70°C
–55°C to +125°C
Package
Description
SOIC
SOIC
Cerdip
Cerdip
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Cerdip
Cerdip
SOIC
SOIC
SOIC
SOIC
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Cerdip
Die
Cerdip
Package
Option
R-16
R-16
Q-14
Q-14
D-14
D-14
D-14
D-14
Q-14
Q-14
R-16
R-16
R-16
R-16
D-14
D-14
Q-14
Q-14
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 V
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
18 V dc
Internal Quiescent Power Dissipation . . . . . . . . . . . . 108 mW
Output Short-Circuit Duration . . . . . . . . . . . . . . . . . Indefinite
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 10 secs) . . . . . . . +300°C
Rated Operating Temperature Range
AD637J, K . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
AD637A, B . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
AD637S, 5962-8963701CA . . . . . . . . . . . –55°C to +125°C
*A standard microcircuit drawing is available.
FILTER/AMPLIFIER
BUFF OUT
BUFF IN
A5
BUFFER
AMPLIFIER
I
4
A4
ONE QUADRANT
SQUARER/DIVIDER
24k
CAV
+V
S
RMS
OUT
24k
I
1
Q4
dB
OUT
COM
Q5
Q2
Q3
A3
I
3
BIAS
24k
CS
DEN
INPUT
OUTPUT
OFFSET
ABSOLUTE VALUE VOLTAGE –
CURRENT CONVERTER
6k
12k
V
IN
A1
6k
A2
Q1
125
AD637
–V
S
Figure 1. Simplified Schematic
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD637 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. E
–3–
AD [ ANALOG DEVICES ]
