Datasheet

TMS570LS0432
TMS570LS0332
SPNS186A –OCTOBER 2012–REVISED SEPTEMBER 2013 www.ti.com
5.2.3 ADC Electrical and Timing Specifications
Table 5-4. MibADC Recommended Operating Conditions
Parameter MIN MAX Unit
AD
REFHI
A-to-D high-voltage reference source AD
REFLO
V
CCAD
V
AD
REFLO
A-to-D low-voltage reference source V
SSAD
AD
REFHI
V
V
AI
Analog input voltage AD
REFLO
AD
REFHI
V
I
AIC
Analog input clamp current - 2 2 mA
(VAI < VSSAD – 0.3 or VAI > VCCAD + 0.3)
Table 5-5. MibADC Electrical Characteristics Over Full Ranges of Recommended Operating Conditions
(1)
Parameter Description/Conditions MIN Type MAX Unit
R
mux
Analog input mux on- See Figure 5-1 95 250 Ω
resistance
R
samp
ADC sample switch on- See Figure 5-1 60 250 Ω
resistance
C
mux
Input mux capacitance See Figure 5-1 7 16 pF
C
samp
ADC sample capacitance See Figure 5-1 8 13 pF
I
AIL
Analog off-state input V
CCAD
= 3.6V maximum V
SSAD
< V
IN
< V
SSAD
+ -300 -1 200 nA
leakage current 100mV
V
SSAD
+ 100mV < V
IN
< -200 -0.3 200 nA
V
CCAD
- 200mV
V
CCAD
- 200mV < V
IN
< -200 1 500 nA
V
CCAD
I
AOSB
Analog on-state input bias V
CCAD
= 3.6V maximum V
SSAD
< V
IN
< V
SSAD
+ -8 2 µA
100mV
V
SSAD
+ 100mV < V
IN
< -4 2 µA
V
CCAD
- 200mV
V
CCAD
- 200mV < V
IN
< -4 12 µA
V
CCAD
I
ADREFHI
AD
REFHI
input current AD
REFHI
= V
CCAD
, AD
REFLO
= V
SSAD
3 mA
I
CCAD
Static supply current Normal operating mode See mA
Sectio
n 3.5
ADC core in power down mode 5 µA
(1) 1 LSB = (AD
REFHI
– AD
REFLO
)/ 2
n
where n = 10 in 10-bit mode and 12 in 12-bit mode
70 Peripheral Information and Electrical Specifications Copyright © 2012–2013, Texas Instruments Incorporated
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