TMS470R1B768 Datasheet, PDF (42/46 Pages) Texas Instruments – 16/32-Bit RISC Flash Microcontroller

TMS470R1B768
16/32-Bit RISC Flash Microcontroller
SPNS108 – AUGUST 2005
External
MibADC
R_s
Input Pin
R_i
V_src
Sample Switch
Parasitic
Capacitance
Sample
Capacitor
www.ti.com
R_leak
C_i
Figure 18. MibADC Input Equivalent Circuit
Multi-Buffer ADC Timing Requirements
t_c(ADCLK)
t_d(SH)
t_d(C)
t_d(SHC) ⁽¹⁾
Cycle time, MibADC clock
Delay time, sample and hold time
Delay time, conversion time
Delay time, total sample/hold and conversion time
MIN
NOM
MAX UNIT
0.05
µs
1
µs
0.55
µs
1.55
µs
(1) This is the minimum sample/hold and conversion time that can be achieved. These parameters are dependent on many factors; for
more details, see the TMS470R1x Multi-Buffered Analog-to-Digital Converter (MibADC) Reference Guide (literature number SPNU206).
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