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參數資料
| 型號： | MAX5873EGK+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 3/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 12BIT 200MSPS DUAL 68-QFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 30 |
| 設置時間： | 14ns |
| 位數： | 12 |
| 數據接口： | 并聯 |
| 轉換器數目： | 2 |
| 電壓電源： | 模擬和數字 |
| 功率耗散（最大）： | 300mW |
| 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 |
| 輸出數目和類型： | 4 電流，單極 |
| 采樣率（每秒）： | 200M |
| 產品目錄頁面： | 1398 (CN2011-ZH PDF) |
MAX5873
12-Bit, 200Msps, High-Dynamic-Performance,
Dual DAC with CMOS Inputs
______________________________________________________________________________________
11
CMOS-Compatible Digital Inputs
Input Data Format Select (TORB,
DORI)
The TORB input selects between two’s-complement or
binary digital input data. Set TORB to a CMOS-logic-
high level to indicate a two’s-complement input format.
Set TORB to a CMOS-logic-low level to indicate a bina-
ry input format.
The
DORI input selects between a dual-port (parallel) or
single-port (interleaved) DAC. Set
DORI high to configure
the MAX5873 as a dual-port DAC. Set
DORI low to con-
figure the MAX5873 as a single-port DAC. In dual-port
mode, connect SELIQ to ground.
CMOS DAC Inputs (A11/B11–A0/B0, XOR, SELIQ)
The MAX5873 latches input data on the rising edge of
the clock in a user-selectable two’s-complement or bina-
ry format. A logic-high voltage on TORB selects two’s-
complement and a logic-low selects offset binary format.
The MAX5873 includes a single-ended, CMOS-compati-
ble XOR input. Input data (all bits) are compared with the
bit applied to XOR through exclusive-OR gates. Pulling
XOR high inverts the input data. Pulling XOR low leaves
the input data noninverted. By applying a previously
encoded pseudo-random bit stream to the data input and
applying decoding to XOR, the digital input data can be
decorrelated from the DAC output, allowing for the trou-
bleshooting of possible spurious or harmonic distortion
degradation due to digital feedthrough on the printed
circuit board (PCB).
A11/B11–A0/B0, XOR, and SELIQ are latched on the ris-
ing edge of the clock. In single-port mode (
DORI pulled
low) a logic-high signal on SELIQ directs the B11–B0
data onto the I-DAC inputs. A logic-low signal at SELIQ
directs data to the Q-DAC inputs. In dual-port (parallel)
mode (
DORI pulled high), data on pins A11–A0 are
directed onto the Q-DAC inputs and B11–B0 are directed
onto the I-DAC inputs.
Power-Down Operation (PD)
The MAX5873 also features an active-high power-down
mode that reduces the DAC’s digital current consumption
from 21.5mA to less than 2A and the analog current
consumption from 76mA to less than 2A. Set PD high
to power down the MAX5873. Set PD low for normal
operation.
When powered down, the MAX5873 reduces the overall
power consumption to less than 14W. The MAX5873
requires 10ms to wake up from power-down and enter
a fully operational state. The PD integrated pulldown
resistor activates the MAX5873 if PD is left floating.
OUTIP
OUTIN
1.2V
REFERENCE
CURRENT-SOURCE
ARRAY DAC
REFIO
FSADJ
RSET
IREF
10k
DACREF
1F
IREF = VREFIO / RSET
Figure 2. Reference Architecture, Internal Reference
Configuration
IOUT
OUTIN OUTIP
CURRENT
SOURCES
CURRENT
SWITCHES
AVDD
Figure 3. Simplified Analog Output 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 IOUTFS / 2
1111 1111 1111
0111 1111 1111
IOUTFS
0
Table 2. DAC Output Code Table
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5873EGK-TD | 功能描述:數模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
| MAX5873EVKIT | 功能描述:數模轉換器- DAC Evaluation Kit for the MAX5873 MAX5874 MAX5875 RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
| MAX5874EGK | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX5874EGK+D | 功能描述:數模轉換器- DAC 14-Bit 2Ch 200Msps DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
| MAX5874EGK+TD | 功能描述:數模轉換器- DAC 14-Bit 2Ch 200Msps DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
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