True rms-to-dc conversion
Laser trimmed to high accuracy
u00b10.2% maximum error (AD536AK)
u00b10.5% maximum error (AD536AJ)
Wide response capability
Computes rms of ac and dc signals
450 kHz bandwidth: V rms > 100 mV
2 MHz bandwidth: V rms > 1 V
Signal crest factor of 7 for 1% error
dB output with 60 dB range
Low power: 1.2 mA quiescent current
Single- or dual-supply operation
Monolithic integrated circuit
u221255u00b0C to +125u00b0C operation (AD536AS)
The AD536A is a complete monolithic integrated circuit that performs true rms-to-dc conversion. It offers performance comparable or superior to that of hybrid or modular units costing much more. The AD536A directly computes the true rms value of any complex input waveform containing ac and dc components. A crest factor compensation scheme allows measurements with 1% error at crest factors up to 7. The wide bandwidth of the device extends the measurement capability to 300 kHz with less than 3 dB errors for signal levels greater than 100 mV. An important feature of the AD536A, not previously available in rms converters, is an auxiliary dB output pin. The logarithm of the rms output signal is brought out to a separate pin to allow the dB conversion, with a useful dynamic range of 60 dB. Using an externally supplied reference current, the 0 dB level can be conveniently set to correspond to any input level from 0.1 V to 2 V rms. The AD536A is laser trimmed to minimize input and output offset voltage, to optimize positive and negative waveform symmetry (dc reversal error), and to provide full-scale accuracy at 7 V rms. As a result, no external trims are required to achieve the rated unit accuracy. The input and output pins are fully protected. The input circuitry can take overload voltages well beyond the supply levels. Loss of supply voltage with the input connected to external circuitry does not cause the device to fail. The output is short-circuit protected.
Specifications
Accuracy %:
0.5%
Bandwidth:
2MHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Digital IC Case:
TO-100
No. of Pins:
10Pins
Supply Voltage Range:
5V to 36V
Product Range:
AD536A Series
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (07-Jul-2017)
Base Number:
536
Dynamic Range:
60dB
IC Case Style:
TO-100
IC Temperature Range:
Commercial
Operating Temperature Range:
0°C to +70°C
Power Dissipation Pd:
500mW
Supply Current:
1.2mA
Supply Voltage Max:
36V
Supply Voltage Min:
5V
Termination Type:
Through Hole
Total Error:
0.5%
Alternate Descriptions
RS Components
True RMS to DC converter,AD536AJH TO100
Newark Electronics
RMS to DC Converter, 0.5 %, 2 MHz, 0 C, 70 C, TO-100, 10 RoHS Compliant: No
RS Components UK
True RMS to DC converter,AD536AJH TO100
RS Components DE
DC-Wandler True RMS AD536AJH, TO-100 10-Pin Montage-Typ : Durchsteckmontage Abmessungen : 9.4 x 9.4 x 4.7mm Länge : 9.4mm Betriebstemperatur max. : +70 °C Ausgangsstrom min. : 5mA Betriebstemperatur-Bereich : 0 → +70 °C Ausgangsstrom-Bereich : 5 mA, Analog Devices
