- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄8627 > AD5629RBRUZ-2-RL7 (Analog Devices Inc)IC DAC 12BIT I2C/SRL 16TSSOP PDF資料下載
參數(shù)資料
| 型號： | AD5629RBRUZ-2-RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 14/32頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT I2C/SRL 16TSSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | denseDAC |
| 設(shè)置時間： | 2.5µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉(zhuǎn)換器數(shù)目： | 8 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | * |
| 采樣率（每秒）： | 166k |
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頁當(dāng)前第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頁第32頁
Data Sheet
AD5629R/AD5669R
Rev. D | Page 21 of 32
THEORY OF OPERATION
DIGITAL-TO-ANALOG CONVERTER (DAC) SECTION
The AD5629R/AD5669R are fabricated on a CMOS process.
The architecture consists of a string of DACs followed by an
output buffer amplifier. Each part includes an internal
1.25 V/2.5 V, 5 ppm/°C reference with an internal gain of 2.
Figure 48 and Figure 49 show block diagrams of the DAC
architecture.
OUTPUT
AMPLIFIER
GAIN = ×2
DAC
REGISTER
REF (+)
VREFIN/VREFOUT
VOUT
REF (–)
RESISTOR
STRING
GND
INTERNAL
REFERENCE1
1CAN BE OVERDRIVEN
BY VREFIN/VREFOUT.
08
81
9
-04
5
Figure 48. DAC Architecture for Internal Reference Configuration
REF
BUFFER
OUTPUT
AMPLIFIER
GAIN = ×2
VREFIN/VREFOUT
GND
REF (+)
REF (–)
RESISTOR
STRING
VOUT
08
81
9-
04
6
R
Figure 49. DAC Architecture for External Reference Configuration
Because the input coding to the DAC is straight binary, the ideal
output voltage when using an external reference is given by
N
REFIN
OUT
D
V
2
The ideal output voltage when using the internal reference is
given by
N
REFOUT
OUT
D
V
2
where:
D
= decimal equivalent of the binary code that is loaded to the
DAC register as follows:
0 to 4095 for AD5629R (12 bits).
0 to 65,535 for AD5669R (16 bits).
N
= the DAC resolution.
RESISTOR STRING
The resistor string section is shown in Figure 50. It is simply a
string of resistors, each of value R. The code loaded into the
DAC register determines at which node on the string the
voltage is tapped off to be fed into the output amplifier. The
voltage is tapped off by closing one of the switches connecting
the string to the amplifier. Because it is a string of resistors, it
is guaranteed monotonic.
TO OUTPUT
AMPLIFIER
R
08
81
9-
0
47
Figure 50. Resistor String
INTERNAL REFERENCE
internal gain of 2. The AD5629R-1/AD5669R-1 have a 1.25 V,
5 ppm/°C reference, giving a full-scale output of 2.5 V or the
AD5629R-2/AD5629R-3/AD5669R-2/AD5669R-3 have a 2.5 V,
5 ppm/°C reference, working between a supply from 4.5 V to
5.5 V giving a full-scale output of 5 V. The on-board reference
is off at power-up, allowing the use of an external reference. The
internal reference is enabled via a write to the control register
(see Table 8).
The internal reference associated with each part is available at
the VREFOUT pin. A buffer is required if the reference output is
used to drive external loads. When using the internal reference,
it is recommended that a 100 nF capacitor be placed between
the reference output and GND for reference stability.
Individual channel power-down is not supported while using
the internal reference.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SY88149HALMG | IC AMP LIMITING 1.25GBPS 16QFN |
| VE-27H-MW-B1 | CONVERTER MOD DC/DC 52V 100W |
| VI-B32-MX-S | CONVERTER MOD DC/DC 15V 75W |
| MAX3747AEUB+ | IC AMP LIMITING SFP 10-UMAX |
| 74LVC1G00SE-7 | IC GATE NAND SNGL 2INPUT SOT353 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD562AD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:12-Bit Digital-to-Analog Converter |
| AD562AD/BCD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD562AD/BIN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD562ADBIN | 制造商:AD 功能描述:562 ANALOG DEVICE NXB3C |
| AD562AKL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:12-Bit Digital-to-Analog Converter |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。