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參數(shù)資料
| 型號(hào)： | SPT7852 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | DUAL 10-BIT, 20 MSPS, 160 mW A/D CONVERTER |
| 中文描述： | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | TQFP-44 |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大?。?/td> | 67K |
| 代理商： | SPT7852 |
4
1/12/00
SPT7852
1. Place the ferrite bead (*) as close to the ADC as possible.
2. Place 0.1
μ
F decoupling capacitors as close to the ADC as possible.
3. All capacitors are 0.1
μ
F surface-mount unless otherwise specified.
4. All analog input pins (references, analog input, clock input) must
be protected. (See absolute maximum ratings.)
11
V
RHF
V
RHS
V
IN1
V
IN2
Clock
Ref In
(+4 V)
V
RLS
V
RLF
V
CAL
V
INA
V
INB
CLK
.1
μ
F
.1
μ
F
4.7
μ
F
4.7
μ
F
+A5
Interfacing
Logic
11
3.3 V/5 V
FB
*
+A5
MSBINV
Reset
Digital
Output A
Digital
Output B
DAV
SPT7852
AV
DD
DV
DD
GND
OV
DD
+A5
EN
EN
3-st
FB
*
Figure 1 –Typical Interface Circuit
TYPICAL INTERFACE CIRCUIT
Very few external components are required to achieve the
stated device performance. Figure 1 shows the typical inter-
face requirements when using the SPT7852 in normal
circuit operation. The following sections provide descrip-
tions of the major functions and outline critical performance
criteria to consider for achieving the optimal device perfor-
mance.
POWER SUPPLIES AND GROUNDING
Fairchild suggests that both the digital and the analog sup-
ply voltages on the SPT7852 be derived from a single ana-
log supply as shown in figure 1. A separate digital supply
must be used for all interface circuitry. Fairchild suggests
using this power supply configuration to prevent a possible
latch-up condition on powerup.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SPT7852SCU | DUAL 10-BIT, 20 MSPS, 160 mW A/D CONVERTER |
| SPT7852SIT | DUAL 10-BIT, 20 MSPS, 160 mW A/D CONVERTER |
| SPT7853SCT | TRIPLE 10-BIT, 30 MSPS A/D CONVERTER |
| SPT7853 | TRIPLE 10-BIT, 30 MSPS A/D CONVERTER |
| SPT7855 | 10-BIT, 25 MSPS, 135 mW A/D CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SPT7852SCT | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:DUAL 10-BIT, 20 MSPS, 160 mW A/D CONVERTER |
| SPT7852SCU | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:DUAL 10-BIT, 20 MSPS, 160 mW A/D CONVERTER |
| SPT7852SIT | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:DUAL 10-BIT, 20 MSPS, 160 mW A/D CONVERTER |
| SPT7853 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:TRIPLE 10-BIT, 30 MSPS A/D CONVERTER |
| SPT7853SCT | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:TRIPLE 10-BIT, 30 MSPS A/D CONVERTER |
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