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參數資料
| 型號： | 935245400551 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | ADC |
| 英文描述： | 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | PLASTIC, SOT-307-2, QFP-44 |
| 文件頁數： | 3/23頁 |
| 文件大小： | 183K |
| 代理商： | 935245400551 |
1998 Aug 26
11
Philips Semiconductors
Preliminary specication
12-bit high-speed Analog-to-Digital
Converter (ADC)
TDA8768
Table 1
Output coding with differential inputs (typical values to AGND); VI(p-p) VI(p-p) = 2.0 V; Vref =VCCA 1.825 V
Table 2 Mode selection
Note
1. X = don’t care.
Table 3 Sample-and-hold selection
CODE
VI(p-p)
IR
BINARY OUTPUTS
TWOS COMPLEMENT
OUTPUTS
D11 TO D0
Underow
<3.1
>4.1
0
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
3.1
4.1
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
1
1
0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 1
↓
2047
3.6
1
0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
↓
4094
1
1 1 1 1 1 1 1 1 1 1 1 0
0 1 1 1 1 1 1 1 1 1 1 0
4095
4.1
3.1
1
1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1
Overow
>4.1
<3.1
0
1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1
OTC
CE
D0 TO D11 AND IR
0
binary; active
1
0
twos complement; active
X(1)
1
high impedance
SH
SAMPLE-AND-HOLD
1
active
0
inactive; tracking mode
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