TMS470R1A64PNTR Datasheet, PDF (40/46 Pages) Texas Instruments – 16/32-Bit RISC Flash Microcontroller

TMS470R1A64
16/32-Bit RISC Flash Microcontroller
SPNS099B – NOVEMBER 2004 – REVISED AUGUST 2006
www.ti.com
Multi-Buffer ADC Timing Requirements
t_c(ADCLK)
t_d(SH)
t_d©)
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 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).
The differential nonlinearity error shown in Figure 19 (sometimes referred to as differential linearity) is the
difference between an actual step width and the ideal value of 1 LSB.
0 ... 110
0 ... 101
0 ... 100
0 ... 011
0 ... 010
1 LSB
Differential Linearity
Error(1/2 LSB)
0 ... 001
1 LSB
Differential Linearity
Error(- 1/2 LSB)
0 ... 000
0
1
2
3
4
5
Analog Input Value (LSB)
A. 1 LSB = (AD_REFHI - AD_REFLO)/2¹⁰
Figure 19. Differential Nonlinearity (DNL)
The integral nonlinearity error shown in Figure 20 (sometimes referred to as linearity error) is the deviation of the
values on the actual transfer function from a straight line.
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