參數(shù)資料
型號(hào): LTC1289CCN
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 3 Volt Single Chip 12-Bit Data Acquisition System
中文描述: 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP20
封裝: 0.300 INCH, PLASTIC, DIP-20
文件頁數(shù): 11/28頁
文件大小: 487K
代理商: LTC1289CCN
11
LTC1289
U
S
A
O
PPLICATI
IU
U
Unipolar/Bipolar (UNI)
The fifth input bit (UNI) determines whether the conver-
sion will be unipolar or bipolar. When UNI is a logical one,
a unipolar conversion will be performed on the selected
Unipolar Transfer Curve (UNI = 1)
input voltage. When UNI is a logical zero, a bipolar conver-
sion will result. The input span and code assignment for
each conversion type are shown in the figures below.
Unipolar Output Code (UNI = 1)
Bipolar Transfer Curve (UNI = 0)
Bipolar Output Code (UNI = 0)
OUTPUT CODE
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0
INPUT VOLTAGE
V
REF
– 1LSB
V
REF
– 2LSB
1LSB
0V
I
NPUT VOLTAGE
(V
REF
= 2.5V)
2.4994V
2.4988V
0.0006V
0V
LTC1289 AI04a
0
1
V
R
V
R
V
R
V
IN
0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
LTC1289 AI04b
1
V
R
V
R
V
R
V
IN
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
1 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0
0 1 1 1 1 1 1 1 1 1 1 0
0 1 1 1 1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0 0 0 0 0
R
R
+
LTC1289 AI05b
OUTPUT CODE
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
1 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0
INPUT VOLTAGE
–1LSB
–2LSB
–(V
) + 1LSB
– (V
REF
)
INPUT VOLTAGE
(V
REF
= 2.5V)
–0.0012V
–0.0024V
–2.4988V
–2.5000V
OUTPUT CODE
0 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 0
0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0
INPUT VOLTAGE
V
REF
– 1LSB
V
REF
– 2LSB
1LSB
0V
INPUT VOLTAGE
(V
REF
= 2.5V)
2.4988V
2.4976V
0.0012V
0V
LTC1289 AI05a
相關(guān)PDF資料
PDF描述
LTC1289CCS 3 Volt Single Chip 12-Bit Data Acquisition System
LTC1289 Single Channel Codec-Bandwidth Independent of Sampling Rate 64-LQFP 0 to 70
LTC1289BCN Single Channel Codec-Bandwidth Independent of Sampling Rate 28-PLCC -40 to 85
LTC1289BCS Single Channel Codec-Bandwidth Independent of Sampling Rate 28-PLCC -40 to 85
LTC1289BI Single Channel Codec-Bandwidth Independent of Sampling Rate 64-LQFP -40 to 85
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