Datasheet

MSP430F673x
MSP430F672x
SLAS731C –DECEMBER 2011–REVISED FEBRUARY 2013 www.ti.com
10-Bit ADC, Timing Parameters
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
For specified performance of ADC10_A linearity
f
ADC10CLK
2.2 V, 3 V 0.45 5 5.5 MHz
parameters
Internal ADC10_A
f
ADC10OSC
ADC10DIV = 0, f
ADC10CLK
= f
ADC10OSC
2.2 V, 3 V 4.4 5.0 5.6 MHz
oscillator
(1)
REFON = 0, Internal oscillator, 12 ADC10CLK
cycles, 10-bit mode
2.2 V, 3 V 2.4 3.0
f
ADC10OSC
= 4 MHz to 5 MHz
t
CONVERT
Conversion time µs
External f
ADC10CLK
from ACLK, MCLK or SMCLK,
(2)
ADC10SSEL ≠ 0
Turn on settling time of
t
ADC10ON
See
(3)
100 ns
the ADC
R
S
= 1000 Ω, R
I
= 96 kΩ, C
I
= 3.5 pF
(4)
1.8 V 3 µs
t
Sample
Sampling time
R
S
= 1000 Ω, R
I
= 36 kΩ, C
I
= 3.5 pF
(4)
3 V 1 µs
(1) The ADC10OSC is sourced directly from MODOSC inside the UCS.
(2) 12 × ADC10DIV × 1/f
ADC10CLK
(3) The condition is that the error in a conversion started after t
ADC10ON
is less than ±0.5 LSB. The reference and input signal are already
settled.
(4) Approximately eight Tau (t) are needed to get an error of less than ±0.5 LSB
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