HP 11049A Operating And Service Manual page 7

Page 1
Figure 1. -hp- Model 1l050A Thermal Converter
1.
GENERAl.
2. The -hp- 1l049A. 1l050A. and 1l051A Thermal
Converters accurately convert ac input signals to de
voltages proportional to the rms value of the input.
They have essentially a flat response from 5 Hz to
10 MHz, and good frequency response from 10 MHz
to 100 MHz. Table 1 shows the frequency response
specifications of the thermal converters.
3. SPECIFI CATIONS.
MAXIMUM INPUT VOLTAGE:
1l050A: 1 volt rms
1l051A: 0.45 volt rms
INPUT IMPEDANCE: 50 rl ±0. 15rl to 10 MHz
OUTPUT IMPEDANCE: less than 10 rl
OUTPUT VOLTAGE FOR FULL SCALE INPUT:
Nominal 7. 5 mV
Table 1. Calibration Accuracy
Frequency Range With Reference Measurement
to Standard
5 Hz to 20 Hz within ±O. 05%
to.
20 Hz to 20 kHz within 01 %
20 kHz to 50 kHz within ±O, 01 %
50 kHz to 1 MHz within ±O. 01 %
1 MHz to 10 Mllz within ±O, 05%
10 MHz to 30 MHz
30 MHz to 60 MHz
60 MHz to 100 MHz
OPTION 01: Includes calibration to 60 MHz and
correctional data sheet covering frequency
range frorn 5 Hz to 60 MHz.
OPTION 02: Includes calibration to 100 MHz and
correctional data sheet covering frequency
range from 5 Hz to 100 MHz.
Model 1l049A
Uncertainty
±0. 12%
±0. 02%
±0.03%
±0. 06%
±0. 12%
±0.25%
±0. 50%
±l. 50%