參數(shù)資料
型號(hào): 7135CN
廠商: Texas Instruments, Inc.
英文描述: 4 1/2-DIGIT PRECISION ANALOG-TO-DIGITAL CONVERTERS
中文描述: 4 ?位精度的模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù): 4/11頁(yè)
文件大小: 146K
代理商: 7135CN
ICL7135C, TLC7135C
4 1/2-DIGIT PRECISION
ANALOG-TO-DIGITAL CONVERTERS
SLAS074B – DECEMBER 1986 – REVISED MAY 1999
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
operating characteristics, V
CC+
= 5 V, V
CC
– = 5 V, V
ref
= 1 V, f
clock
= 120 kHz, T
A
= 25
°
C (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
0
°
C
TA
70
°
C
–2 V
VID
2 V
–2 V
VID
2 V
VID =
±
2 V
MIN
TYP
MAX
UNIT
ppm/
°
C
count
α
FS
EL
ED
EFS
Full-scale temperature coefficient (see Note 4)
VID = 2 V,
5
Linearity error
0.5
Differential linearity error (see Note 5)
±
Full-scale symmetry error (rollover error) (see Note 6)
0.01
LSB
0.5
1
count
Display reading with 0-V input
VID = 0,
0
°
C
TA
70
°
C
–0.0000
±
0.0000
0.0000
Digital
Reading
Display reading in ratiometric operation
VID = Vref,
0
°
C
TA
70
°
C
TA = 25
°
C
0.9998
0.9995
0.9999
0.9999
1.0000
1.0005
Digital
Reading
NOTES:
4. This parameter is measured with an external reference having a temperature coefficient of less than 0.01 ppm/
°
C.
5. The magnitude of the difference between the worst case step of adjacent counts and the ideal step.
6. Rollover error is the difference between the absolute values of the conversion for 2 V and –2 V.
timing diagrams
D1
D2
D3
D4
D5
STROBE
B1–B8
201 Counts
200 Counts
D5
D1
D2
D3
D4
D5
BUSY
End of Conversion
200 Counts
200 Counts
200 Counts
200 Counts
200 Counts
Delay between BUSY going low and the first STROBE pulse is dependent upon the analog input.
Figure 1
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