C8051F997-GUR Silicon Labs, C8051F997-GUR Datasheet - Page 71

• Manufacturer Part Number: C8051F997-GUR
• Description: 8-bit Microcontrollers - MCU 8kB 14-CH CDC
• Manufacturer: Silicon Labs

Specifications of C8051F997-GUR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

Table 5.1. Representative Conversion Times and Energy Consumption for the SAR
Note: This table assumes that the 24.5 MHz precision oscillator is used for 8- and 10-bit modes, and the 20 MHz
conversion clocks
Total tracking time
Total time for one
ADC Throughput
Highest nominal
Total number of
conversion
conversion
Energy per
SAR clock
frequency
required
low power oscillator is used for 12-bit mode. The values in the table assume that the oscillators run at their
nominal frequencies. The maximum SAR clock values given in Table 4.10 allow for maximum oscillation
frequencies of 25.0 MHz and 22 MHz for the precision and low-power oscillators, respectively, when using
the given SAR clock divider values. Energy calculations are for the ADC subsystem only and do not include
CPU current. 12-bit mode is only available on
(min)
8.17 MHz
351 ksps
(24.5/3)
2.85 µs
1.5 µs
8.2 nJ
8 bit
11
ADC with 1.65 V High-Speed VREF
Normal Power Mode
8.17 MHz
323 ksps
(24.5/3)
3.09 µs
1.5 µs
8.9 nJ
10 bit
13
Rev. 1.1
C8051F980/6 and C8051F990/6 devices.
(1.5+3 x 1.1)
52 (13 x 4)
6.67 MHz
(20.0/3)
79 ksps
12.6 µs
36.5 nJ
4.8 µs
12 bit
C8051F99x-C8051F98x
238 ksps
(24.5/6)
4.19 µs
1.5 µs
6.5 nJ
8 bit
MHz
4.08
11
Low Power Mode
214 ksps
(24.5/6)
4.68 µs
1.5 µs
7.3 nJ
10 bit
4.08
MHz
13
(1.5+3 x 1.1)
4.00 MHz
52 (13*4)
56 ksps
(20.0/5)
17.8 µs
27.7 nJ
4.8 µs
12 bit
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