True RMS-to-DC Converters

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5

ELECTRICAL CHARACTERISTICS—MX636 (continued)

±2.8

2

4

8

±2

Input Signal Range

µA

Peak Transient

±5

Safe Input

±12

Input Resistance

5.33

6.7

8.00

k

Ω

1

50

MX636J

±0.5

mV

Input Offset Voltage

MX636K

±0.2

µA

MX636J

±0.5

MX636K

±0.2

mV

±10

With Supply Voltage

±0.1

µV/°C

100

Offset Voltage

+3V, -5V Supplies

0 to 1

Output Voltage Swing

±5V to ±16.5V Supplies

0 to 1

1.4

V

-20

±10

+20

%

Output Resistance

8

10

12

k

Ω

UNITS

MIN

TYP

MAX

CONDITIONS

PARAMETER

MX636J

±0.3

±0.5

Error

7mV

MX636K

±0.1

±0.2

Scale Factor

-3

mV/dB

Scale Factor Tempco

Output Resistance

0 to 200

+0.33

%/°C

8

10

12

k

Ω

Voltage Compliance

V

Continuous RMS, All Supplies

All Supplies

±5V Supplies

±2.5V Supplies

+3V, -5V Supplies

Input and Output Voltage Range

V

±0.8

±2

mV

Input Offset Voltage

±0.5

±1

Input Current

100

300

nA

Input Resistance

Ω

Source

+5

mA

Output Current

Sink

-130

µA

Short-Circuit Current

20

mA

Small-Signal Bandwidth

1

MHz

Slew Rate (Note 9)

5

V/µs

MX636J

MX636K

-0.033

dB/°C

mV/V

dB

INPUT CHARACTERISTICS

OUTPUT CHARACTERISTICS (Note 5)

dB OUTPUT

BUFFER AMPLIFIER