RM46L450
RM46L850
www.ti.com
SPNS184 –SEPTEMBER 2012
5.4.3 ADC Electrical and Timing Specifications
Table 5-19. MibADC Recommended Operating Conditions
Parameter
MIN
ADREFLO
VSSAD
ADREFLO
- 2
MAX
VCCAD
ADREFHI
ADREFHI
2
Unit
V
ADREFHI
ADREFLO
VAI
A-to-D high-voltage reference source
A-to-D low-voltage reference source
Analog input voltage
V
V
IAIC
Analog input clamp current
mA
(VAI < VSSAD – 0.3 or VAI > VCCAD + 0.3)
Table 5-20. MibADC Electrical Characteristics Over Full Ranges of Recommended Operating Conditions
Parameter
Rmux
Description/Conditions
Analog input mux on-resistance See Figure 5-6
MIN
MAX
250
Unit
Ω
Rsamp
ADC sample switch on-
resistance
See Figure 5-6
250
Ω
Cmux
Csamp
IAIL
Input mux capacitance
See Figure 5-6
See Figure 5-6
16
13
pF
pF
nA
nA
ADC sample capacitance
Analog off-state input leakage
current, for VCCAD = 3.6V
maximum
Off-state input leakage per
ADC input pin
VSSAD < VIN < VSSAD + 100mV
300
200
VSSAD + 100mV < VIN < VCCAD
- 200mV
VCCAD - 200mV < VIN < VCCAD
500
1
nA
µA
IAIL
Analog off-state input leakage
current, for VCCAD = 5.5V
maximum
Off-state input leakage per
ADC input pin
VIN > VSSAD,
VIN < VSSAD + 300mV
VIN > VSSAD + 300mV,
VIN < VCCAD - 300mV
250
1
nA
µA
VIN > VCCAD - 300mV,
VIN < VCCAD
IADREFHI
ICCAD
ADREFHI input current
Static supply current
ADREFHI = VCCAD, ADREFLO = VSSAD
Normal operating mode
3
15
5
mA
mA
µA
ADC core in power down mode
Rext
Pin
Rmux
Smux
VS1
39*IAIL
Cext
On-State
Leakage
Smux
Rext
Pin
Rmux
VS2
IAIL
Cext
IAIL
IAIL
Off-State
Leakages
Smux
Rext
Pin
Rmux
Ssamp
Rsamp
VS24
IAIL
Csamp
Cmux
Cext
IAIL
IAIL
Figure 5-6. MibADC Input Equivalent Circuit
Copyright © 2012, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
Submit Documentation Feedback
Product Folder Links: RM46L450 RM46L850
131
TI [ TEXAS INSTRUMENTS ]
