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參數(shù)資料
| 型號： | MAX5876EGK+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/19頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT DUAL 250MSPS 68-QFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 30 |
| 設(shè)置時間： | 14ns |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 模擬和數(shù)字 |
| 功率耗散（最大）： | 331mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 68-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 68-QFN 裸露焊盤（10x10） |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 4 電流，單極 |
| 采樣率（每秒）： | 250M |
MAX5876
12-Bit, 250Msps, High-Dynamic-Performance,
Dual DAC with LVDS Inputs
14
______________________________________________________________________________________
CMOS-Compatible Digital Inputs
Input Data Format Select (TORB)
The TORB input selects between two’s-complement or
offset binary digital input data. Set TORB to a CMOS-
logic-high level to indicate a two’s-complement input for-
mat. Set TORB to a CMOS-logic-low level to indicate an
offset binary input format.
Power-Down Operation (PD)
The MAX5876 also features an active-high power-down
mode that reduces the DAC’s digital current consump-
tion from 33mA to less than 5A and the analog current
consumption from 83mA to less than 2A. Set PD high
to power down the MAX5876. Set PD low for normal
operation.
When powered down, the MAX5876 reduces the overall
power consumption to less than 16W. The MAX5876
requires 10ms to wake up from power-down and enter
a fully operational state. The PD integrated pulldown
resistor activates the MAX5876 if PD is left floating.
Applications Information
CLK Interface
The MAX5876 features a flexible differential clock input
(CLKP, CLKN) with a separate supply (AVCLK) to
achieve optimum jitter performance. Use an ultra-low
jitter clock to achieve the required noise density. Clock
jitter must be less than 0.5psRMS for meeting the speci-
fied noise density. For that reason, the CLKP/CLKN
input source must be designed carefully. The differen-
tial clock (CLKN and CLKP) input can be driven from a
single-ended or a differential clock source. Differential
clock drive is required to achieve the best dynamic
performance from the DAC. For single-ended opera-
tion, drive CLKP with a low noise source and bypass
CLKN to GND with a 0.1F capacitor.
Figure 6 shows a convenient and quick way to apply a
differential signal created from a single-ended source
(e.g., HP 8662A signal generator) and a wideband trans-
former. Alternatively, these inputs can be driven from a
CMOS-compatible clock source; however, it is recom-
mended to use sinewave or AC-coupled differential
ECL/PECL or LVDS drive for best dynamic performance.
110
TO
DECODE
LOGIC
D
Q
B11P–B0P,
SELIQP
B11N–B0N,
SELIQN
CLOCK
MAX5876
Figure 5. Simplified LVDS-Compatible Digital Input Structure
DIGITAL INPUT CODE
OFFSET BINARY
TWO’S COMPLEMENT
OUT_P
OUT_N
0000 0000 0000
1000 0000 0000
0
IOUTFS
0111 1111 1111
0000 0000 0000
IOUTFS / 2
1111 1111 1111
0111 1111 1111
IOUTFS
0
Table 2. DAC Output Code Table
WIDEBAND RF TRANSFORMER
PERFORMS SINGLE-ENDED-TO-
DIFFERENTIAL CONVERSION
SINGLE-ENDED
CLOCK SOURCE
(e.g., HP 8662A)
GND
1:1
25
25
CLKP
CLKN
TO DAC
0.1
F
0.1
F
Figure 6. Differential Clock-Signal Generation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5876EGK-TD | 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 |
| MAX5876EVKIT# | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Evaluation Kit for the MAX5876/MAX5877/MAX5878 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 |
| MAX5876EVKIT+ | 制造商:Maxim Integrated Products 功能描述:EVKIT FOR MAX8576, 3V TO 28V INPUT, LOW-COST, HYSTERETIC SY - Boxed Product (Development Kits) 制造商:Maxim Integrated Products 功能描述:KIT EVALUATION FOR MAX5876 制造商:Maxim Integrated Products 功能描述:MAX5876 Eval Kit |
| MAX5877EGK+D | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 2Ch 250Msps 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 |
| MAX5877EGK+TD | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 2Ch 250Msps 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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