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參數(shù)資料
| 型號： | ADC12062 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Single-Wire Advanced Battery Monitor IC for Cellular and PDA Applications 8-TSSOP -20 to 70 |
| 中文描述： | 12位，1兆赫，75毫瓦的A / D轉換器 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大小： | 355K |
| 代理商： | ADC12062 |
Applications Information
(Continued)
TL/H/11490–18
FIGURE 8. Buffering the Input with an LM6361 High Speed Op Amp
Another benefit of using a high speed buffer is improved
THD performance when using the multiplexer of the
ADC12062. The MUX on-resistance is somewhat non-linear
over input voltage, causing the RC time constant formed by
C
IN
, R
MUX
, and R
SW
to vary depending on the input voltage.
This results in increasing THD with increasing frequency.
Inserting the buffer between the MUX OUT and the ADC IN
terminals as shown in Figure 8 will eliminate the loading on
R
MUX
, significantly reducing the THD of the multiplexed sys-
tem.
Correct converter operation will be obtained for input volt-
ages greater than AGND
b
50 mV and less than AV
CC
a
50 mV. Avoid driving the signal source more than 300 mV
higher than AV
CC
, or more than 300 mV below AGND. If an
analog input pin is forced beyond these voltages, the cur-
rent flowing through that pin should be limited to 25 mA or
less to avoid permanent damage to the IC. The sum of all
the overdrive currents into all pins must be less than 50 mA.
When the input signal is expected to extend more than
300 mV beyond the power supply limits for any reason (un-
known/uncontrollable input voltage range, power-on tran-
sients, fault conditions, etc.) some form of input protection,
such as that shown in Figure 9, should be used.
TL/H/11490–19
FIGURE 9. Input Protection
13
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PDF描述 |
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| ADC12062BIV | 12-Bit, 1 MHz, 75 mW A/D Converter |
| ADC12062CIV | 12-Bit, 1 MHz, 75 mW A/D Converter |
| ADC12062BIVF | 12-Bit, 1 MHz, 75 mW A/D Converter |
| ADC12081CIVT | 12-Bit, 5 MHz Self-Calibrating, Pipelined A/D Converter |
| ADC12081 | 12-Bit, 5 MHz Self-Calibrating, Pipelined A/D Converter with Internal Sample & Hold(12位5 MHz可自行校對的管線式帶內部采樣和保持功能A/D轉換器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADC12062BIV | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 1 MHz, 75 mW A/D Converter |
| ADC12062BIVF | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 1 MHz, 75 mW A/D Converter |
| ADC12062CIV | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 1 MHz, 75 mW A/D Converter |
| ADC12062CIVF | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 1 MHz, 75 mW A/D Converter |
| ADC12062EVAL | 功能描述:BOARD EVALUATION FOR ADC12062 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
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