Datasheet
SLAS491A − AUGUST 2005 − REVISED OCTOBER 2005
44
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP430x20x3 electrical characteristics over recommended ranges of supply voltage and
operating free-air temperature (unless otherwise noted) (continued)
SD16_A, SINAD performance (f
SD16
= 1MHz, SD16OSRx = 1024, SD16REFON = 1, MSP430x20x3 only)
PARAMETER
TEST CONDITIONS
VCC
PW, or N RSA
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN TYP MIN TYP
UNIT
SD16GAINx = 1,
Signal Amplitude: V
IN
= 500mV,
Signal Frequency: f
IN
= 100Hz
3 V 84 85 TBD TBD
SD16GAINx = 2,
Signal Amplitude: V
IN
= 250mV,
Signal Frequency: f
IN
= 100Hz
3 V 82 83 TBD TBD
SINAD
1024
Signal-to-Noise + Distortion Ratio
SD16GAINx = 4,
Signal Amplitude: V
IN
= 125mV,
Signal Frequency: f
IN
= 100Hz
3 V 78 79 TBD TBD
dB
SINAD
1024
Signal-to-Noise + Distortion Ratio
(OSR = 1024)
SD16GAINx = 8,
Signal Amplitude: V
IN
= 62mV,
Signal Frequency: f
IN
= 100Hz
3 V 73 74 TBD TBD
dB
SD16GAINx = 16,
Signal Amplitude: V
IN
= 31mV,
Signal Frequency: f
IN
= 100Hz
3 V 68 69 TBD TBD
SD16GAINx = 32,
Signal Amplitude: V
IN
= 15mV,
Signal Frequency: f
IN
= 100Hz
3 V 62 63 TBD TBD
SD16_A, SINAD performance (f
SD16
= 1MHz, SD16OSRx = 256, SD16REFON = 1, MSP430x20x3 only)
PARAMETER
TEST CONDITIONS
VCC
PW, or N RSA
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN TYP MIN TYP
UNIT
SD16GAINx = 1,
Signal Amplitude: V
IN
= 500mV,
Signal Frequency: f
IN
= 100Hz
3 V 80 81 TBD TBD
SD16GAINx = 2,
Signal Amplitude: V
IN
= 250mV,
Signal Frequency: f
IN
= 100Hz
3 V 74 75 TBD TBD
SINAD
256
Signal-to-Noise + Distortion Ratio
SD16GAINx = 4,
Signal Amplitude: V
IN
= 125mV,
Signal Frequency: f
IN
= 100Hz
3 V 69 70 TBD TBD
dB
SINAD
256
Signal-to-Noise + Distortion Ratio
(OSR = 256)
SD16GAINx = 8,
Signal Amplitude: V
IN
= 62mV,
Signal Frequency: f
IN
= 100Hz
3 V 63 64 TBD TBD
dB
SD16GAINx = 16,
Signal Amplitude: V
IN
= 31mV,
Signal Frequency: f
IN
= 100Hz
3 V 58 59 TBD TBD
SD16GAINx = 32,
Signal Amplitude: V
IN
= 15mV,
Signal Frequency: f
IN
= 100Hz
3 V 52 53 TBD TBD