A/D Converter - Rabbit RabbitCore RCM4200 User Manual

A.1.1 A/D Converter
Table A-2 shows some of the important A/D converter specifications. For more details,
refer to the ADC7870 data sheet.
Parameter
Analog Input Characteristics
Input Capacitance
Input Impedance
Common-Mode
Differential Mode
Static Accuracy
Resolution
Single-Ended Mode
Differential Mode
Integral Linearity
Differential Linearity
Dynamic Characteristics
Throughput Rate
Voltage Reference
Accuracy
Buffer Amp Source Current
Buffer Amp Sink Current
Short-Circuit Current
92
Table A-2. A/D Converter Specifications
Test Conditions
V = 2.048 V and 2.5 V
ref
Typ Max
4 – 9.7 pF
6 MΩ
7 MΩ
11 bits
12 bits
±1 LSB ±2.5 LSB
±0.5 LSB
52 ksamples/s
±0.05% ±0.25%
20 mA
200 µA
20 mA
RabbitCore RCM4200