MX536A Datasheet, PDF (4/12 Pages) Maxim Integrated Products – True RMS-to-DC Converters

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