參數(shù)資料
型號: ADS7870EA
英文描述: 12-Bit ADC, MUX, PGA and Internal Reference DATA ACQUISITION SYSTEM
中文描述: 12位ADC,復(fù)用器,PGA和內(nèi)部基準數(shù)據(jù)采集系統(tǒng)
文件頁數(shù): 7/27頁
文件大小: 262K
代理商: ADS7870EA
7
ADS7870
TYPICAL PERFORMANCE CURVES (cont.)
At T
A
= +25
°
C, V
DD
= +5.0V, V
REF
= 2.5V connected to BUF
IN
(using internal reference), 2.5MHz CCLK and 2.5MHz SCLK, unless otherwise noted.
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Q
1
10
100
Sample Rate (kS/s)
QUIESCENT CURRENT vs SAMPLING RATE
V
and Buffer ON, Oscillator OFF
Serial Data clocked during the 48 clock
count conversion cycle, CCLK = SCLK
V
DD
= 5V
V
DD
= 3V
6.0
5.0
4.0
3.0
2.0
1.0
0
P
1
2
4
5
8
20
16
10
Gain
OUTPUT NOISE vs GAIN
0.6
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
I
μ
A
0
1
2
3
4
5
6
Input Voltage (V)
INPUT BIAS CURRENT vs INPUT VOLTAGE
V
DD
= 5V
V
DD
= 3V
Input Impedance Inversly proportional
to Sampling Rate.
2.0
1.5
1.0
0.5
0.0
–0.5
–1.0
E
0
1000
2000
3000
4096
Output Code
DIFFERENTIAL LINEARITY ERROR
2.0
1.5
1.0
0.5
0.0
–0.5
–1.0
–1.5
–2.0
E
0
1000
2000
3000
4096
Output Code
INTEGRAL LINEARITY ERROR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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