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參數(shù)資料
| 型號： | MAX5544ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Low-Cost, +5V, Serial-Input, Voltage-Output, 14-Bit DAC |
| 中文描述： | SERIAL INPUT LOADING, 1 us SETTLING TIME, 14-BIT DAC, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 218K |
| 代理商： | MAX5544ESA |
M
Low-Cost, +5V, Serial-Input,
Voltage-Output, 14-Bit DAC
6
_______________________________________________________________________________________
t
CSHO
t
CH
t
CSSO
t
CL
t
DH
t
DS
t
CSH1
t
CSS1
CS
SCLK
DIN
D13
D12
S0
Figure 1. Timing Diagram
CS
SCLK
DIN
MSB
LSB
D13
D6
D5 D4 D3 D2 D1 D0
S1 S0
SUB-BITS
DAC
UPDATED
D12 D11 D10 D9 D8 D7
Figure 2. 3-Wire Interface Timing Diagram
Detailed Description
The MAX5544 voltage-output, 14-bit digital-to-analog
converter (DAC) offers 14-bit monotonicity with less
than 1LSB differential linearity error. Serial-data transfer
minimizes the number of package pins required.
The MAX5544 is composed of two matched DAC sec-
tions, with a 12-bit inverted R-2R DAC forming the
12LSBs and the 4MSBs derived from 15 identically
matched resistors. This architecture allows the lowest
glitch energy to be transferred to the DAC output on
major-carry transitions. It also decreases the DAC out-
put impedance by a factor of eight compared to a stan-
dard R-2R ladder, allowing unbuffered operation in
medium-load applications. Figure 1 is the timing dia-
gram.
Digital Interface
The MAX5544 digital interface is a standard 3-wire con-
nection compatible with SPI/QSPI/MICROWIRE inter-
faces. The chip-select input (
CS
) frames the serial data
loading at the data input pin (DIN). Immediately follow-
ing
CS
’s high-to-low transition, the data is shifted
synchronously and latched into the input register on the
rising edge of the serial-clock input (SCLK). After 16
data bits (14 data bits, plus two sub-bits set to zero)
have been loaded into the serial input register, it trans-
fers its contents to the DAC latch on
CS
’s low-to-high
transition (Figure 2). Note that if
CS
does not remain
low during the entire 16 SCLK cycles, data will be cor-
rupted. In this case, reload the DAC latch with a new
16-bit word.
External Reference
The MAX5544 operates with external voltage refer-
ences from 2V to 3V. The reference voltage determines
the DAC’s full-scale output voltage.
Power-On Reset
The MAX5544 has a power-on reset circuit to set the
DAC’s output to 0V in unipolar mode when V
DD
is first
applied. This ensures that unwanted DAC output volt-
ages will not occur immediately following a system
power-up, such as after power loss. In bipolar mode,
the DAC output is set to -V
REF
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5544ESA+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5544ESA+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5544ESA-T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5547ETA | 制造商:Maxim Integrated Products 功能描述:DUAL 10-BIT CURRENT-SINK OUTPUT D - Rail/Tube |
| MAX5547ETA+ | 制造商:Maxim Integrated Products 功能描述:DAC 2CH CURRENT STEERING 10-BIT 8TDFN EP - Rail/Tube |
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