參數(shù)資料
型號： MAX5877EGK+TD
廠商： Maxim Integrated Products
文件頁數(shù)： 3/19頁
文件大小： 0K
描述： IC DAC 14BIT DUAL 250MSPS 68-QFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
設(shè)置時間： 14ns
位數(shù)： 14
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： 帶卷 (TR)
輸出數(shù)目和類型： 4 電流，單極
采樣率（每秒）： 250M
MAX5877
14-Bit, 250Msps, High-Dynamic-Performance,
Dual DAC with LVDS Inputs
______________________________________________________________________________________
11
LATCH
XOR/
DECODE
LATCH
LVDS
RECEIVER
LATCH
DAC
OUTIP
OUTIN
LATCH
XOR/
DECODE
LATCH
DAC
OUTQP
OUTQN
FSADJ
TORB
SELIQN
XORP
XORN
AVCLK
CLKN
CLKP
CLK
INTERFACE
DATA13–
DATA0
+1.2V
REFERENCE
POWER-DOWN
BLOCK
REFIO
DACREF
PD
GND
DVDD1.8
DVDD3.3
AVDD1.8
AVDD3.3
SELIQP
MAX5877
Figure 1. MAX5877 High-Performance, 14-Bit, Dual Current-Steering DAC
Detailed Description
Architecture
The MAX5877 high-performance, 14-bit, dual current-
steering DAC (Figure 1) operates with DAC update rates
up to 250Msps. The converter consists of input registers
and a demultiplexer for single-port operation, followed by
a current-steering array. During operation, the input data
registers demultiplex the single-port data bus. The cur-
rent-steering array generates differential full-scale cur-
rents in the 2mA to 20mA range. An internal
current-switching network, in combination with external
50
termination resistors, converts the differential output
currents into dual differential output voltages with a 0.1V
to 1V peak-to-peak output voltage range. An integrated
+1.2V bandgap reference, control amplifier, and user-
selectable external resistor determine the data convert-
er’s full-scale output range.
Reference Architecture and Operation
The MAX5877 supports operation with the internal
+1.2V bandgap reference or an external reference volt-
age source. REFIO serves as the input for an external,
low-impedance reference source. REFIO also serves as
a reference output when the DAC operates in internal
reference mode. For stable operation with the internal
reference, decouple REFIO to GND with a 1F capaci-
tor. Due to its limited output drive capability, buffer
REFIO with an external amplifier when driving large
external loads.
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MAX5878EGK 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX5878EGK+D 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5878EGK+TD 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5878EGK-D 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
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