151-0153 Rabbit Semiconductor, 151-0153 Datasheet - Page 58

• Manufacturer Part Number: 151-0153
• Description: ASSEMBLY - RABBITFLEX CABLES
• Manufacturer: Rabbit Semiconductor
• Series: RabbitFLEX™r

Specifications of 151-0153

• Accessory Type: Cable Assembly
• For Use With/related Products: BL300F
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined

4.3.13 Analog-to-Digital Converters
The RabbitFLEX BL300F has a ramp-compare ADC. Up to 16 channels are available. The analog inputs
can be on any combination of pins 1 through 8 on both J3 and J4. The design of the ADCs allow you to
choose a current or voltage input on these pins. The measurement range options are:
•
•
•
The ADCs work with single-ended unipolar voltage inputs and industry standard 4-20 mA current loops.
The digital result has an 8-bit resolution and the sampling frequency is determined by the following equa-
tion.
The ADC channels are sampled round-robin, so the sampling frequency depends on the number of analog-
to-digital channels that exist on the RabbitFLEX BL300F. If there is only one ADC, the sampling fre-
quency is about 425 samples per second. If the maximum of 16 ADCs exist, the sampling frequency is
about 25 samples per second.
The ADCs are not meant for applications that require very fast data acquisition rates. They are suitable for
measuring analog voltages that change slowly.
52
Sampling Frequency for ADCs
0-3 V
0-10 V
4-20 mA
=
-------------------------------------------------------------- -
2.35 ms
www.rabbit.com
1000 ms
# A/D channels
RabbitFLEX BL300F Options