MSC1202Y3RHHTG4 Datasheet, PDF (12/92 Pages) Texas Instruments –
Precision Analog-to-Digital Converter and Current-Output Digital-to-Analog Converter

MSC1200
MSC1201
MSC1202
SBAS317E − APRIL 2004 − REVISED MAY 2006
www.ti.com
TYPICAL CHARACTERISTICS: MSC1200 AND MSC1201 ONLY (Continued)
AVDD = +5V, DVDD = +5V, fOSC = 8MHz, PGA = 1, fMOD = 15.625kHz, ADC Bipolar Mode, Buffer ON, and VREF ≡ (REF IN+) − (REF IN−) = +2.5V, unless
otherwise specified.
FAST SETTLING FILTER
EFFECTIVE NUMBER OF BITS vs DECIMATION RATIO
20
19
Gain 1
18
17
16
Gain 16
15
14
Gain 128
13
12
11
10
0
500
1000
1500
Decimation Value
2000
EFFECTIVE NUMBER OF BITS vs f_MOD
(set with ACLK)
25
20
f_MOD = 15.6kHz
15
f_MOD = 31.25kHz
10
f_MOD = 203kHz
f_MOD = 110kHz
5
f_MOD = 62.5kHz
0
1
10
100
1k
10k
100k
Data Rate (SPS)
EFFECTIVE NUMBER OF BITS vs f_MOD (set with ACLK)
WITH FIXED DECIMATION
25
DEC = 2020
DEC = 500
20
DEC = 255
DEC = 50
15
DEC = 20
10
5
0
10
DEC = 10
100
1k
10k
Data Rate (SPS)
100k
4500
HISTOGRAM OF ADC OUTPUT DATA
4000
3500
3000
2500
2000
1500
1000
500
0
−2 −1.5 −1 −0.5 0
0.5
1
1.5
2
ppm of FS
NOISE vs INPUT SIGNAL
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
− 2.5
− 1.5
− 0.5
0.5
1.5
2.5
V_IN (V)
EFFECTIVE NUMBER OF BITS vs INPUT SIGNAL
22.0
(Internal and External V_REF)
External
21.5
21.0
Internal
20.5
20.0
19.5
19.0
18.5
18.0
− 2.5
− 1.5
− 0.5
0.5
1.5
2.5
V_IN (V)
12