Datasheet

MSP430F673x
MSP430F672x
www.ti.com SLAS731C –DECEMBER 2011–REVISED FEBRUARY 2013
SD24_B, AC Performance
f
SD24
= 1MHz, SD24OSRx = 256, SD24REFS = 1
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
SD24GAIN: 1 3 V 85 87
SD24GAIN: 2 3 V 86
SD24GAIN: 4 3 V 85
SD24GAIN: 8 3 V 82 84
Signal-to-noise +
SINAD f
IN
= 50Hz
(1)
dB
distortion ratio
SD24GAIN: 16 3 V 80
SD24GAIN: 32 3 V 73 74
SD24GAIN: 64 3 V 68
SD24GAIN: 128 3 V 62
SD24GAIN: 1 3 V 100
Total Harmonic
THD SD24GAIN: 8 f
IN
= 50Hz
(1)
3 V 90 dB
distiortion
SD24GAIN: 32 3 V 80
(1) The following voltages were applied to the SD24_B inputs:
V
I,A+
(t) = 0 V + V
PP
/2 × sin(2π × f
IN
× t)
V
I,A-
(t) = 0 V - V
PP
/2 × sin(2π × f
IN
× t)
resulting in a differential voltage of V
ID
= V
I,A+
(t) - V
I,A-
(t) = V
PP
× sin(2π × f
IN
× t) with V
PP
being selected as the maximum value allowed
for a given range (according to SD24_B recommended operating conditions).
SD24_B, AC Performance
f
SD24
= 2MHz, SD24OSRx = 512, SD24REFS = 1
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
SD24GAIN: 1 3 V 87
SD24GAIN: 2 3 V 86
SD24GAIN: 4 3 V 85
SD24GAIN: 8 3 V 84
Signal-to-noise +
SINAD f
IN
= 50Hz
(1)
dB
distortion ratio
SD24GAIN: 16 3 V 81
SD24GAIN: 32 3 V 76
SD24GAIN: 64 3 V 71
SD24GAIN: 128 3 V 65
(1) The following voltages were applied to the SD24_B inputs:
V
I,A+
(t) = 0 V + V
PP
/2 × sin(2π × fIN × t)
V
I,A-
(t) = 0 V - V
PP
/2 × sin(2π × f
IN
× t)
resulting in a differential voltage of V
ID
= V
I,A+
(t) - V
I,A-
(t) = V
PP
× sin(2π × f
IN
× t) with V
PP
being selected as the maximum value allowed
for a given range (according to SD24_B recommended operating conditions).
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