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參數(shù)資料
| 型號： | MAX5182BEEI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Dual, 10-Bit, 40MHz Current/Voltage Alternate-Phase Output DACs |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 0.025 us SETTLING TIME, 10-BIT DAC, PDSO28 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-28 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 244K |
| 代理商： | MAX5182BEEI |
M
Dual, 10-Bit, 40MHz Current/Voltage
Alternate-Phase Output DACs
10
______________________________________________________________________________________
PD
(POWER-DOWN SELECT)
DACEN
(DAC ENABLE)
POWER-DOWN MODE
OUTPUT STATE
0
0
Standby
MAX5182
MAX5185
Last state prior to standby mode
MAX5182
MAX5185
High-Z
AGND
0
1
Wake-Up
1
X
Shutdown
High-Z
AGND
Table 1. Power-Down Mode Selection
X = Don’t care
External Reference
To disable the MAX5182/MAX5185’s internal reference,
connect REN to DV
DD
. A temperature-stable, external
reference may now be applied to drive the REFO pin
(Figure 3) to set the full-scale output. Be sure to choose
a reference capable of supplying at least 150μA to
drive the bias circuit that generates the cascode cur-
rent for the current array. For improved accuracy and
drift performance, chose a fixed output voltage refer-
ence such as the +1.2V, 25ppm/°C MAX6520 bandgap
reference.
Standby Mode
To enter the lower power standby mode, connect digital
inputs PD and DACEN to DGND. In standby, both the
reference and the control amplifier are active, with the
current array inactive. To exit this condition, DACEN
must be pulled high with PD held at DGND. The
MAX5182/MAX5185 typically require 50μs to wake up
and let both outputs and reference settle.
Shutdown Mode
For lowest power consumption, the MAX5182/MAX5185
provide a power-down mode in which the reference,
control amplifier, and current array are inactive and the
DACs supply current is reduced to 1μA. To enter this
mode, connect PD to DV
DD
. To return to active mode,
connect PD to DGND and DACEN to DV
DD
. About 50μs
are required for the devices to leave the shutdown
mode and to settle their outputs to the values prior to
shutdown. Table 1 lists the power-down mode selection.
Timing Information
Both internal DAC cells write to their outputs in alternate
phase (Figure 4). The input latch of the first DAC
(DAC1) is loaded after the clock signal transitions high.
When the clock signal transitions low, the input latch of
the second DAC (DAC2) is loaded. The contents of the
first input latch are shifted into the DAC1 register on the
rising edge of the clock; the contents of the second
input latch are shifted into the input register of DAC2 on
the falling edge of the clock. Both outputs are updated
on alternate phases of the clock.
CLK
D0
–
D9
OUT1
N - 1
DAC1
DAC2
DAC1
DAC2
DAC1
DAC2
N - 1
N
N - 1
N + 1
N
N
N + 1
N + 1
t
DS1
t
CH
t
CL
t
CLK
OUT2
N
N - 1
N + 1
t
DS1
t
DH1
t
DH2
Figure 4. Timing Diagram
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PDF描述 |
|---|---|
| MAX5185BEEI | Dual, 10-Bit, 40MHz Current/Voltage Alternate-Phase Output DACs |
| MAX5188BEEI | Dual, 8-Bit, 40MHz, Current/Voltage, Alternate-Phase Output DACs |
| MAX5191BEEI | Dual, 8-Bit, 40MHz, Current/Voltage, Alternate-Phase Output DACs |
| MAX5188 | Dual, 8-Bit, 40MHz, Current/Voltage, Alternate-Phase Output DACs |
| MAX5189BEEI | Dual, 8-Bit, 40MHz, Current/Voltage, Simultaneous-Output DACs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5182BEEI+ | 功能描述:數(shù)模轉換器- DAC 10-Bit 2Ch High Speed DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5182BEEI+T | 功能描述:數(shù)模轉換器- DAC 10-Bit 2Ch High Speed DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5182BEEI-T | 功能描述:數(shù)模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5183 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Power.90Msps.6-Bit ADC[MAX1011/MAX1011CEG/MAX1011CEG-T ] |
| MAX5183BEEI | 功能描述:數(shù)模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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