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參數(shù)資料
| 型號(hào)： | MAX5251ACPP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| 中文描述： | QUAD, SERIAL INPUT LOADING, 12 us SETTLING TIME, 10-BIT DAC, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁(yè)數(shù)： | 14/16頁(yè) |
| 文件大?。?/td> | 146K |
| 代理商： | MAX5251ACPP |
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M
Using an AC Referenc e
In applications where the reference has AC signal com-
ponents, the MAX5251 has multiplying capability within
the reference input range specifications. Figure 12
shows a technique for applying a sine-wave signal to
the reference input where the AC signal is offset before
being applied to REFAB/REFCD. The reference voltage
must never be more negative than DGND.
The MAX5251’s total harmonic distortion plus noise
(THD + N) is typically less than -72dB (full-scale code),
given a 1Vp-p signal swing and input frequencies up to
25kHz. The typical -3dB frequency is 650kHz, as
shown in the Typical Operating Characteristics graphs.
Digitally Programmable Current S ourc e
The circuit of Figure 13 places an NPN transistor
(2N3904 or similar) within the op-amp feedback loop to
implement a digitally programmable, unidirectional cur-
rent source. This circuit can be used to drive 4–20mA
current loops, which are commonly used in industrial-
control applications. The output current is calculated
with the following equation:
I
OUT
= (V
REF
/ R) x (NB / 1024)
where NB is the numeric value of the DAC’s binary
input code and R is the sense resistor shown in
Figure 13.
+3V, Quad, 10-Bit Voltage-Output DAC
with S erial Interfac e
14
______________________________________________________________________________________
MAX5251
DAC A
DAC B
DAC C
DAC D
V
REFAB
= V
REFCD
= 1.25V
OUTA
FBB
10k
10k
10k
10k
16k
16k
16k
16k
OUTB
FBC
OUTC
FBD
OUTD
DGND
AGND
REFAB
REFCD
REFERENCE INPUTS
+3.3V
V
DD
FBA
A
V
= 1 + 10k
Figure 10. Unipolar Rail-to-Rail Output Circuit
DAC
V
OUT
+3.3V
-3.3V
R1 = R2 = 10k
± 0.1%
MAX5251
REF_
R1
R2
FB_
OUT_
Figure 11. Bipolar Output Circuit
DAC_
OUT_
MAX5251
AGND
10k
26k
REF_
V
DD
DGND
+3.3V
AC
REFERENCE
INPUT
500mVp-p
1/2 MAX492
Figure 12. AC Reference Input Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5251AEPP | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| MAX5251BCAP | +3V, Quad, 10-Bit Voltage-Output DAC with Serial Interface |
| MAX5251BEAP | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| MAX5251BEPP | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| MAX5251BMJP | +3V, Quad, 10-Bit Voltage-Output DAC with Serial Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5251ACPP+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 4Ch 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(shí)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 |
| MAX5251AEAP | 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(shí)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 |
| MAX5251AEAP+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 4Ch 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(shí)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 |
| MAX5251AEAP+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 4Ch 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(shí)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 |
| MAX5251AEAP-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(shí)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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