參數(shù)資料
型號(hào)： MAX5774UCB+D
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 13/28頁(yè)
文件大?。?/td> 0K
描述： IC DAC 14BIT 32CHAN SER 64-TQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 160
設(shè)置時(shí)間： 20µs
位數(shù)： 14
數(shù)據(jù)接口： 串行
轉(zhuǎn)換器數(shù)目： 32
電壓電源： 模擬和數(shù)字
工作溫度： 0°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-LQFP
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
包裝： 托盤
輸出數(shù)目和類型： 32 電壓，單極
采樣率（每秒）： *
產(chǎn)品目錄頁(yè)面： 1398 (CN2011-ZH PDF)
MAX5773/MAX5774/MAX5775
Gain and Offset Registers
The MAX5773/MAX5774/MAX5775 contain a gain and
offset register associated with each channel to correct
real-time gain and offset errors associated with each
channel. The gain and offset registers can be
accessed individually or in pairs.
The gain word range is limited between 0 and 1. The
gain word is an unsigned 14-bit data word. A gain word
of 0000h is a special mapping to provide a gain of
absolute one, i.e., no gain correction. For all the other
gain word codes, the amount of gain correction varies
proportionally to the gain word’s decimal value. For
example, a gain word of 0001h is equivalent to a gain
of 0.514 and a gain of 3FFFh is equivalent to 1 - 0.514
(see Table 9). To access the gain register, set control
bits C3–C0 = 1000 (see Tables 7 and 8).
The offset has a range from -FS/2 to + (FS/2 - 1 LSB).
The offset word is a 14-bit data word represented in
two’s complement. For example, an offset word equiva-
lent to 1FFFh would provide an offset of FS/2 - 1 LSB
and offset word of 2000h would provide an offset of
-FS/2 (see Table 10). To access the offset register, set
control bits C3–C0 = 1001 (see Tables 7 and 8).
Configuration Register
The configuration register controls the advanced fea-
tures of the MAX5773/MAX5774/MAX5775. Write to the
configuration register by setting control bits C3–C0 =
1100 and address bits 000000. Table 11 shows the
configuration register data format for the D13–D0 data
bits. Table 12 shows the commands controlled by the
configuration register.
DSP Mode (
DSP)
The MAX5773/MAX5774/MAX5775 provide a hardware-
selectable DSP-interface mode. The active-low DSP
logic input selects the microcontroller (C)-interface or
DSP-interface mode. Drive DSP high for C-interface
mode. Drive DSP low for DSP-interface mode. DSP
mode, when active, allows chip select (CS) to go high
before the entire 32-bit command word is clocked in.
Figure 1 illustrates serial timing for both C- and DSP-
interface modes.
SING
When SING = 0, the MAX5773/MAX5774/MAX5775 are
in daisy-chain mode
. For daisy-chain operation, set
DSP high (C mode) and SING = 0.
32-Channel, 14-Bit, Voltage-Output
DACs with Serial Interface
20
______________________________________________________________________________________
CONTROLLER
DEVICE
DIN(0)
DOUT(0)
1
SCLK
CS
DSP
MAX577_
DIN(1)
DOUT(1)
SCLK
CS
DSP
MAX577_
DIN(2)
DOUT(2)
SCLK
CS
DSP
MAX577_
Figure 5. Daisy-Chain Configuration
CODE (DATA BITS D13–D0)
GAIN VALUE
0000h
Unity Gain
0001h
0.000061
0002h
0.00012
::
1FFFh
0.499938
2000h
0.5
::
3FFEh
0.999877
3FFFh
0.999938
Table 9. Gain Register Code Values
CODE (DATA BITS D13–D0)
OFFSET VALUE*
1FFFh
FS/2 - 1 LSB
::
0001h
+1 LSB
0000h
0
3FFFh
-1 LSB
::
2000h
-FS/2
Table 10. Offset Register Code Values
*
1 LSB = FS/214
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MAX5774UCB-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(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
MAX5774UTK 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
MAX5774UTK+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 32Ch 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
MAX5774UTK+G074 功能描述:數(shù)模轉(zhuǎn)換器- DAC 32-Channel 14-Bit Voltage-Output DAC with Serial Interface 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
MAX5774UTK+T 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 32Ch 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
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