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參數(shù)資料
| 型號： | MAX5878EGK+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 8/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 16BIT DUAL 250MSPS 68-QFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 30 |
| 設置時間： | 14ns |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉換器數(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 |
| 供應商設備封裝： | 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 |
MAX5878
16-Bit, 250Msps, High-Dynamic-Performance,
Dual DAC with LVDS Inputs
16
______________________________________________________________________________________
The analog and digital power-supply inputs AVDD3.3,
AVCLK, and DVDD3.3 allow a +3.135V to +3.465V sup-
ply voltage range. The analog and digital power-supply
inputs AVDD1.8 and DVDD1.8 allow a +1.71V to +1.89V
supply voltage range.
The MAX5878 is packaged in a 68-pin QFN-EP pack-
age, providing greater design flexibility, increased ther-
mal efficiency, and optimized DAC AC performance.
The EP enables the use of necessary grounding tech-
niques to ensure highest performance operation.
Thermal efficiency is not the key factor, since the
MAX5878 features low-power operation. The exposed
pad ensures a solid ground connection between the
DAC and the PCB’s ground layer.
The data converter die attaches to an EP lead frame with
the back of this frame exposed at the package bottom
surface, facing the PCB side of the package. This allows
for a solid attachment of the package to the PCB with
standard infrared reflow (IR) soldering techniques. A spe-
cially created land pattern on the PCB, matching the size
of the EP (6mm x 6mm), ensures the proper attachment
and grounding of the DAC. Designing vias into the land
area and implementing large ground planes in the PCB
design allow for the highest performance operation of the
DAC. Use an array of at least 4 x 4 vias (
≤ 0.3mm diame-
ter per via hole and 1.2mm pitch between via holes) for
this 68-pin QFN-EP package. Connect the MAX5878
exposed paddle to GND. Vias connect the land pattern
to internal or external copper planes. Use as many vias
as possible to the ground plane to minimize inductance.
Static Performance Parameter Definitions
Integral Nonlinearity (INL)
Integral nonlinearity is the deviation of the values on an
actual transfer function from either a best straight-line fit
(closest approximation to the actual transfer curve) or a
line drawn between the end points of the transfer func-
tion, once offset and gain errors have been nullified.
For a DAC, the deviations are measured at every indi-
vidual step.
Differential Nonlinearity (DNL)
Differential nonlinearity is the difference between an
actual step height and the ideal value of 1 LSB. A DNL
error specification of less than 1 LSB guarantees a
monotonic transfer function.
Offset Error
The offset error is the difference between the ideal and
the actual offset current. For a DAC, the offset point is
the average value at the output for the two midscale
digital input codes with respect to the full scale of the
DAC. This error affects all codes by the same amount.
Gain Error
A gain error 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 corresponds to the same
percentage error in each step.
MAX5878
16
OUTIP/OUTQP
OUTIN/OUTQN
DATA15–DATA0
GND
25
50
25
OUTP
OUTN
Figure 8. Differential Output Configuration
MAX5878
16
OUTIP/OUTQP
OUTIN/OUTQN
DATA15–DATA0
0.1
F
AVDD1.8
DVDD1.8
0.1
F
0.1
F
0.1
F
AVDD3.3
DVDD3.3
0.1
F
AVCLK
BYPASSING—DAC LEVEL
*BYPASS EACH POWER-SUPPLY PIN INDIVIDUALLY.
Figure 9. Recommended Power-Supply Decoupling and
Bypassing Circuitry
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5878EGK-TD | 功能描述:數(shù)模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率: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 |
| MAX5878EVKIT | 功能描述:數(shù)模轉換器- DAC Evaluation Kit for the MAX5876/MAX5877/MAX5878 RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率: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 |
| MAX5878EVKIT# | 功能描述:數(shù)模轉換器- DAC Evaluation Kit for the MAX5876/MAX5877/MAX5878 RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率: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 |
| MAX5879EVKIT# | 制造商:Maxim Integrated Products 功能描述:EVALUATION KIT FOR THE MAX5879 - Boxed Product (Development Kits) |
| MAX5879EXF+ | 制造商:Maxim Integrated Products 功能描述:14-BIT, 2.3GSPS DIRECT RF SYNTHESIS DAC WITH SELECTABLE FREQ - Rail/Tube |
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