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參數(shù)資料
| 型號： | MAX551ACPA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | 9-Channel Differential Transceiver 56-CFP -55 to 125 |
| 中文描述： | SERIAL INPUT LOADING, 0.08 us SETTLING TIME, 12-BIT DAC, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 99K |
| 代理商： | MAX551ACPA |
M
+3V /+5V, 12-Bit, S erial, Multiplying DACs
in 10-Pin μMAX Pac kage
8
_______________________________________________________________________________________
DIN
SCLK
LOAD
BIT 11
MSB
BIT 0
LSB
BIT 10
BIT 1
t
DS
t
DH
t
CH
1
2
LOAD SERIAL DATA INTO INPUT REGISTER
11
t
CL
t
CLR
t
SL
t
LD
t
LC
CLR
Figure 2. Write-Cycle Timing Diagram
MAX551
MAX552
+5V (+3V)
( ) ARE FOR MAX552
V
REF
V
DD
R2
50
C1
15pF
2
3
V
OUT
6
R1
100
DIN
REF
RFB
OUT
GND
AGND
SCLK
LOAD
Table 1. Unipolar Binary-Code Table
for Circuit of Figure 3
DIGITAL INPUT
MSB
LSB
ANALOG OUTPUT
1111
1111
1111
1000
0000
0000
0000
0000
0001
0000
0000
0000
0
V
REF
4095
4096
=
V
V
REF
REF
2
2048
4096
V
REF
1
4096
Figure 3. Unipolar Operation
Detailed Desc ription
The MAX551/MAX552 digital-to-analog converter (DAC)
circuits consist of a laser-trimmed, thin-film R-2R resis-
tor array with NMOS current switches (Figure 1).
Binary-weighted currents are switched to either OUT or
AGND, depending on the status of each input data bit.
Although the currents at OUT and AGND depend on
the digital input code, the sum of the two output cur-
rents is always equal to the input current at REF.
The output current (I
OUT
) can be converted into a volt-
age by adding an external output amplifier (Figure 3).
The REF input accepts a wide range of signals, includ-
ing fixed and time-varying voltage or current inputs. If a
current source is used at the reference input, use a
low-tempco, external feedback resistor in place of the
internal feedback resistor (R
FB
) to minimize gain varia-
tion with temperature.
The internal feedback resistor (R
FB
) is compensated
with an NMOS switch that matches the NMOS switches
used in the R-2R array, resulting in excellent supply
rejection and gain-temperature coefficient.
The OUT pin output capacitance (C
OUT
) is code
dependent. C
OUT
is typically
14
pF at 000hex and
20
pF
at FFFhex.
S erial Interfac e
The MAX551/MAX552 serial interface is compatible
with the SPI/QSPI and Microwire serial-interface stan-
dards. These devices accept serial clocks up to
12.5MHz (50% duty cycle). If the SCLK input is not
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| MAX551ACPA+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX551ACUB | 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX551ACUB+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX551ACUB+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX551ACUB-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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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