4
•
Introduction
1.3 Specifications
♦
Analog Input (A/D)
•
Converter:
ADS-774 or equivalent one, successive approximation
type
•
Resolution:
12-bit
•
Number of channels:
8 single-ended
•
Programmable Gain:
1, 2, 4, 8, 16 (programmable)
•
Input Range:
(programmable)
Bipolar:
±
5V,
±
2.5V,
±
1.25V,
±
0.625V, and
±
0.3125V
•
Conversion Time:
8
µ
sec
•
Maximum Sampling Rate:
≤
50
KHz
•
Over-voltage protection:
Continuous
±
35V maximum
•
Accuracy:
0.015% of reading
±
1 Bit LSB
•
Input Impedance:
10 M
Ω
•
AD Clock Sources (trigger modes):
Software trigger, internal timer
pacer, and external pulse trigger
•
Data Transfer Modes:
Polling and Interrupt
♦
Analog Output (D/A)
•
Converter:
DAC7548 or equivalent, monolithic multiplying
•
Number of channel:
1 double-buffered analog outputs
•
Resolution:
12-bit
•
Output Range:
Internal reference: (unipolar) 0~5V or 0~10V
External reference: (unipolar) max. +10V or -10V
•
Settling Time:
30
µ
sec
•
Linearity:
±
1/2 bit LSB
•
Output driving capability:
±
5mA max.
