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參數資料
| 型號： | TLC7135CDWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PDSO28 |
| 封裝： | GREEN, PLASTIC, SOIC-28 |
| 文件頁數： | 12/17頁 |
| 文件大小： | 458K |
| 代理商： | TLC7135CDWR |
ICL7135C, TLC7135C
4 1/2DIGIT PRECISION
ANALOGTODIGITAL CONVERTERS
SLAS074D DECEMBER 1986 REVISED SEPTEMBER 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
OPERATING CHARACTERISTICS
VCC + = 5 V, VCC = 5 V, Vref = 1 V, fclock = 120 kHz, TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
αFS
Full-scale temperature coefficient (see Note 1)
VID = 2 V,
0
°C ≤ TA ≤ 70°C
5
ppm/
°C
EL
Linearity error
2 V
≤ VID ≤ 2 V
0.5
count
ED
Differential linearity error (see Note 2)
2 V
≤ VID ≤ 2 V
0.01
LSB
EFS
± Full-scale symmetry error (rollover error) (see Note 3)
VID = ± 2 V
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, TA = 25°C
0.9998
0.9999
1.0000
Digital
Display reading in ratiometric operation
0
°C ≤ TA ≤ 70°C
0.9995
0.9999
1.0005
Digital
Reading
NOTES:
1. This parameter is measured with an external reference having a temperature coefficient of less than 0.01 ppm/
°C.
2. The magnitude of the difference between the worst case step of adjacent counts and the ideal step.
3. 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
Delay between BUSY going low and the first STROBE pulse is dependent upon the analog input.
Figure 1
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