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參數(shù)資料
| 型號： | DAC8412FPC-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 12BIT QUAD V-OUT 28-PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 產(chǎn)品變化通告： | DAC8412/3 Redesign and Fab Process Change 01/Oct/2009 |
| 標(biāo)準(zhǔn)包裝： | 750 |
| 設(shè)置時間： | 6µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 330mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 4 電壓，單極；4 電壓，雙極 |
| 采樣率（每秒）： | 167k |
Data Sheet
DAC8412/DAC8413
Rev. G | Page 15 of 20
RESET
The RESET function can be used either at power-up or at any
time during DAC operation. The RESET function is independent
of CS. This pin is active low and sets the DAC output registers
to either center code for the DAC8412, or zero code for the
DAC8413. The reset-to-center code is most useful when the
DAC is configured for bipolar references and an output of 0 V
after reset is desired.
SUPPLIES
Supplies required are VSS, VDD, and VLOGIC. The VSS supply can
be set between 15 V and 0 V. VDD is the positive supply; its
operating range is between 5 V and 15 V.
VLOGIC is the digital output supply voltage for the readback
function. It is normally connected to +5 V. This pin is a logic
reference input only. It does not supply current to the device. If
the readback function is not being used, VLOGIC can be left open-
circuit. While VLOGIC does not supply current to the DAC8412, it
does supply currents to the digital outputs when readback is used.
AMPLIFIERS
Unlike many voltage output DACs, the DAC8412 features buffered
voltage outputs. Each output is capable of both sourcing and
sinking 5 mA at ±10 V, eliminating the need for external
amplifiers when driving 500 pF or smaller capacitive load in
most applications. These amplifiers are short-circuit protected.
Table 6. DAC8412/DAC8413 Logic Table
A1
A0
R/W
CS
RS
LDAC
Input Register
Output Register
Mode
DAC
L
H
L
Write
Transparent
A
L
H
L
H
L
Write
Transparent
B
H
L
H
L
Write
Transparent
C
H
L
H
L
Write
Transparent
D
L
H
Write
Hold
Write input
A
L
H
L
H
Write
Hold
Write input
B
H
L
H
Write
Hold
Write input
C
H
L
H
Write
Hold
Write input
D
L
H
L
H
Read
Hold
Read input
A
L
H
L
H
Read
Hold
Read input
B
H
L
H
L
H
Read
Hold
Read input
C
H
L
H
Read
Hold
Read input
D
X
H
L
Hold
Update all output registers
All
X
H
Hold
All
X
L
X
All registers reset to midscale/zero-scale1
All
X
H
X
All registers latched to midscale/zero-scale1
All
1
DAC8412 resets to midscale, and DAC8413 resets to zero scale. L = logic low; H = logic high; X = don’t care. Input and output registers are transparent when asserted.
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