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參數資料
| 型號： | DC1444A-B |
| 廠商： | Linear Technology |
| 文件頁數： | 14/26頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD SAR ADC LTC2305 |
| 軟件下載： | QuikEval System |
| 設計資源： | DC1444A Design File DC1444A Schematic |
| 標準包裝： | 1 |
| 系列： | QuikEval™ |
| ADC 的數量： | 2 |
| 位數： | 12 |
| 采樣率（每秒）： | 14k |
| 數據接口： | I²C，串行 |
| 在以下條件下的電源（標準）： | 1.5mW @ 1kSPS |
| 工作溫度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2305 |
| 已供物品： | 板 |
| 相關產品： | LTC2305IMS#TRPBF-ND - IC ADC 12-BIT 2CHN 12-MSOP LTC2305IDE#TRPBF-ND - IC ADC 12-BIT 2CHN 12-DFN LTC2305IDE#PBF-ND - IC ADC 12-BIT 2CHN 12-DFN LTC2305HMS#TRPBF-ND - IC ADC 12-BIT 2CHN 12-MSOP LTC2305HMS#PBF-ND - IC ADC 12-BIT 2CHN 12-MSOP LTC2305CMS#TRPBF-ND - IC ADC 12-BIT 2CHN 12-MSOP LTC2305CMS#PBF-ND - IC ADC 12-BIT 2CHN 12-MSOP LTC2305CDE#TRPBF-ND - IC ADC 12-BIT 2CHN 12-DFN LTC2305CDE#PBF-ND - IC ADC 12-BIT 2CHN 12-DFN LTC2305IMS#PBF-ND - IC ADC 12BIT I2C 12-MSOP |
LTC2301/LTC2305
21
23015fb
separated as much as possible. Care should be taken not
to run any digital signals alongside an analog signal. All
analog inputs should be shielded by GND. VREF, REFCOMP
and VDD should be bypassed to the ground plane as close
to the pin as possible. Maintaining a low impedance path
APPLICATIONS INFORMATION
Figure 15a. Top Silkscreen
for the common return of these bypass capacitors is es-
sential to the low noise operation of the ADC. These traces
should be as wide as possible. See Figures 15a–15e for
a suggested layout.
Figure 13. Bipolar Transfer Characteristics (2’s Complement)
Figure 14. Unipolar Transfer Characteristics (Straight Binary)
INPUT VOLTAGE (V)
0V
OUTPUT
CODE
(TWO’S
COMPLEMENT)
–1
LSB
23015 F13
011...111
011...110
000...001
000...000
100...000
100...001
111...110
1
LSB
BIPOLAR
ZERO
111...111
FS/2 – 1LSB
–FS/2
FS = 4.096V
1LSB = FS/2n
1LSB = 1mV
INPUT VOLTAGE (V)
OUTPUT
CODE
23015 F14
111...111
111...110
100...001
100...000
000...000
000...001
011...110
011...111
FS – 1LSB
0V
UNIPOLAR
ZERO
FS = 4.096V
1LSB = FS/2n
1LSB = 1mV
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