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參數(shù)資料
| 型號： | MAX5190 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 8-Bit, 40MHz, Current/Voltage-Output DACs |
| 中文描述： | 8位、40MHz、電流/電壓輸出DAC |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 226K |
| 代理商： | MAX5190 |
M
8-Bit, 40MHz, Current/Voltage-Output DACs
12
______________________________________________________________________________________
Gain Error
Gain error (Figure 5d) is the difference between the
ideal and the actual full-scale output voltage on the
transfer curve, after nullifying the offset error. This error
alters the slope of the transfer function and corre-
sponds to the same percentage error in each step.
Settling Time
Settling time is the amount of time required from the start
of a transition until the DAC output settles its new output
value to within the converter’s specified accuracy.
Digital Feedthrough
Digital feedthrough is the noise generated on a DAC’s
output when any digital input transitions. Proper board
layout and grounding will significantly reduce this
noise, but there will always be some feedthrough
caused by the DAC itself.
Total Harmonic Distortion
Total harmonic distortion (THD) is the ratio of the RMS
sum of the input signal’s first five harmonics to the fun-
damental itself. This is expressed as:
where V
1
is the fundamental amplitude, and V
2
through
V
5
are the amplitudes of the 2nd- through 5th-order
harmonics.
Spurious-Free Dynamic Range
Spurious-free dynamic range (SFDR) is the ratio of RMS
amplitude of the fundamental (maximum signal compo-
nent) to the RMS value of the next-largest distortion com-
ponent.
Differential to Single-Ended Conversion
The MAX4108 low-distortion, high-input bandwidth
amplifier may be used to generate a voltage from the
array current output of the MAX5187. The differential
voltage across OUTP and OUTN is converted into a
single-ended voltage by designing an appropriate
operational amplifier configuration (Figure 6).
I/Q Reconstruction in a QAM Application
The low-distortion performance of two MAX5187/
MAX5190s supports analog reconstruction of in-phase
(I) and quadrature (Q) carrier components typically
used in quadrature amplitude modulation (QAM) archi-
tectures, where two separate buses carry the I and Q
data. A QAM signal is both amplitude and phase mod-
ulated, created by summing two independently modu-
lated carriers of identical frequency but different phase
(90° phase difference).
THD
20
log
V
V
V
V
V
2
2
3
2
4
2
5
2
1
=
+
+
+
400
*
400
*
REN
AGND
DGND
+5V
-5V
402
402
402
402
OUTP
CLK
OUTN
0.1
μ
F
AV
DD
R
SET
**
OUTPUT
MAX5187
MAX5190
10
μ
F
+3V
+3V
0.1
μ
F
0.1
μ
F
REFR
REFO
D0
–
D7
10
μ
F
CREF
0.1
μ
F
AV
DD
DV
DD
MAX4108
*400
RESISTORS INTERNAL TO MAX5190 ONLY.
**MAX5187 ONLY
Figure 6. Differential to Single-Ended Conversion Using a Low-Distortion Amplifier
相關(guān)PDF資料 |
PDF描述 |
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| MAX5190BEEG | 8-Bit, 40MHz, Current/Voltage-Output DACs |
| MAX5187 | RES 76.8 OHM 1/8W 1% 0805 SMD |
| MAX5187BEEG | 8-Bit, 40MHz, Current/Voltage-Output DACs |
| MAX5204 | Low-Cost, Voltage-Output, 16-Bit DACs in UMAX |
| MAX5206ACUB | Low-Cost, Voltage-Output, 16-Bit DACs in UMAX |
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| MAX5190BEEG | 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 |
| MAX5190BEEG+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit High Speed 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 |
| MAX5190BEEG+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit High Speed 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 |
| MAX5190BEEG-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 |
| MAX5190E/D | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 40 MHz Current/Voltage-Output DACs 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 |
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