- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄36343 > 935276541518 (NXP SEMICONDUCTORS) SPECIALTY ANALOG CIRCUIT, PDSO16 PDF資料下載
參數(shù)資料
| 型號： | 935276541518 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | 7.50 MM, LEAD FREE, PLASTIC, SOT162-1, SO-16 |
| 文件頁數(shù)： | 32/34頁 |
| 文件大小： | 251K |
| 代理商： | 935276541518 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁當前第32頁第33頁第34頁
2003 Jan 27
7
Philips Semiconductors
Product specication
8-bit A/D and D/A converter
PCF8591
7.3
D/A conversion
The third byte sent to a PCF8591 device is stored in the
DAC data register and is converted to the corresponding
analog voltage using the on-chip D/A converter. This D/A
converter consists of a resistor divider chain connected to
the external reference voltage with 256 taps and selection
switches. The tap-decoder switches one of these taps to
the DAC output line (see Fig.6).
The analog output voltage is buffered by an auto-zeroed
unity gain amplifier. This buffer amplifier may be switched
on or off by setting the analog output enable flag of the
control register. In the active state the output voltage is
held until a further data byte is sent.
The on-chip D/A converter is also used for successive
approximation A/D conversion. In order to release the
DAC for an A/D conversion cycle the unity gain amplifier is
equipped with a track and hold circuit. This circuit holds the
output voltage while executing the A/D conversion.
The output voltage supplied to the analog output AOUT is
given by the formula shown in Fig.7. The waveforms of a
D/A conversion sequence are shown in Fig.8.
handbook, full pagewidth
MBL826
TAP
DECODER
FF
02
01
00
R256
DAC out
R255
VREF
AGND
R3
R2
R1
D7
D6
D0
Fig.6 DAC resistor divider chain.
相關PDF資料 |
PDF描述 |
|---|---|
| 935276541512 | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 933768140518 | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 933768130112 | SPECIALTY ANALOG CIRCUIT, PDIP16 |
| 933768140512 | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 935277468112 | 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 935277864112 | 制造商:NXP Semiconductors 功能描述:IC CPU |
| 935278818112 | 制造商:NXP Semiconductors 功能描述:LCD DRVR 20DIGIT 2.5V/3.3V/5V 56-Pin VSO Tube |
| 935280517132 | 制造商:NXP Semiconductors 功能描述:IC TRANSLATING BUFFER 6XSON |
| 935281751112 | 制造商:NXP Semiconductors 功能描述:IC BUFFER/DVR 16BIT 3ST 48TSSOP |
| 935281751118 | 制造商:NXP Semiconductors 功能描述:IC BUFFER/DVR 16BIT 3ST 48TSSOP |
發(fā)布緊急采購，3分鐘左右您將得到回復。