參數(shù)資料
型號: SC1200
廠商: Texas Instruments, Inc.
英文描述: Precision Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC) with 8051 Microcontroller and Flash Memory
中文描述: 精密模擬到數(shù)字轉(zhuǎn)換器(ADC)和數(shù)字到模擬轉(zhuǎn)換器(DAC)的8051微控制器和閃存
文件頁數(shù): 11/60頁
文件大小: 802K
代理商: SC1200
MSC1200
SBAS289E
11
www.ti.com
TYPICAL CHARACTERISTICS
(Cont.)
AV
DD
= +5V, DV
DD
= +5V, f
OSC
= 8MHz, PGA = 1, f
MOD
= 15.625kHz, Bipolar, Buffer ON, and V
REF
(REF IN+)
(REF IN
) = +2.5V, unless otherwise specified.
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
ADC CURRENT vs PGA
PGA Setting
1
8
2
4
32
16
128
64
I
A
μ
A
AV
DD
= 5V, Buffer = ON
AV
DD
= 5V, Buffer = OFF
AV
DD
= 3V, Buffer = ON
AV
DD
= 3V, Buffer = OFF
4500
4000
3500
3000
2500
2000
1500
1000
500
0
HISTOGRAM OF OUTPUT DATA
ppm of FS
2
N
1.5
1
0.5
0
0.5
1
1.5
2
30
25
20
15
10
5
0
ADC INTEGRAL NONLINEARITY vs V
REF
V
REF
(V)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
I
V
= V
Buffer OFF
AV
DD
= 3V
AV
DD
= 5V
INL ERROR vs PGA
PGA Setting
I
1
4
2
16
8
128
64
32
50
45
40
35
30
25
20
15
10
5
0
AV
DD
= 5V
V
REF
= 2.5V
1.3
1.3
1.2
1.2
1.1
1.1
1.0
1.0
0.9
ANALOG SUPPLY CURRENT
Analog Supply Voltage (V)
2.5
3.0
3.5
4.0
4.5
5.0
5.5
A
40
°
C
+25
°
C
+85
°
C
PGA = 128, ADC = ON
V
= ON, DBOR = ON
ALVD = ON, IDAC = ON
10
8
6
4
2
0
2
4
6
8
10
12
OFFSET DAC: OFFSET vs TEMPERATURE
O
Temperature (
°
C)
40
+25
+85
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