Tru e RMS -t o -DC Co n ve rt e rs
ELECTRICAL CHARACTERISTICS—MX536A (continued)
(T = +25°C, +V = +15V, -V = -15V, unless otherwise noted.)
A
S
S
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
BUFFER AMPLIFIER
-V to
(+V - 2.5)
S
S
Input and Output Voltage Range
V
Input Offset Voltage
Input Bias Current
Input Resistance
R
= 25kΩ
±0.5
20
108
±4
mV
nA
S
300
Ω
Source
Sink
+5
mA
µA
Output Current
-130
Short-Circuit Current
Small-Signal Bandwidth
Slew Rate (Note 4)
20
1
mA
MHz
V/µs
5A/MX36
5
ELECTRICAL CHARACTERISTICS—MX636
(T = +25°C, +V = +3V, -V = -5V, unless otherwise noted.)
A
S
S
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Transfer Equation
V
OUT
= [avg. (V )2]1/2
IN
Averaging Time Constant
Figure 3
25
ms/µF C
AV
CONVERSION ACCURACY
MX636J
MX636K
MX636J
MX636K
±0.5 ±1.0
±0.2 ±0.5
Total Error, Internal Trim
(Notes 5, 6)
mV ±% of
Reading
±0.1 ±0.01
±0.1 ±0.005
Total Error vs. Temperature
(0°C to +70°C)
mV ±% of
Reading/°C
mV ±% of
Reading/V
Total Error vs. Supply
±0.1 ±0.01
MX636J
MX636K
±0.2
±0.1
±% of
Reading
Total Error vs. DC Reversal
V
IN
= 200mV
MX636J
MX636K
±0.3 ±0.1
±0.1 ±0.1
Total Error, External Trim
(Note 5)
mV ±% of
Reading
ERROR vs. CREST FACTOR (Note 3)
Crest Factor 1 to 2
Crest Factor = 3
Crest Factor = 6
FREQUENCY RESPONSE (Notes 6, 8)
Specified Accuracy
±% of
Reading
Additional Error
-0.2
-0.5
V
= 10mV
14
90
IN
Bandwidth for 1%
Additional Error (0.09dB)
V
IN
= 100mV
= 200mV
= 10mV
kHz
V
IN
130
100
900
1.5
V
IN
kHz
±3dB Bandwidth
V
IN
= 100mV
= 200mV
V
IN
MHz
4
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