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參數(shù)資料
| 型號(hào)： | TLV5637D |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7 V TO 5.5 V LOW POWER DUAL 10-BIT DIGITAL-TO-ANALOG CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN |
| 中文描述： | 2.7 V至5.5 V低功耗雙10位數(shù)字至模擬轉(zhuǎn)換器，具有內(nèi)部參考和斷電 |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 240K |
| 代理商： | TLV5637D |
TLV5637
2.7 V TO 5.5 V LOW POWER DUAL 10-BIT DIGITAL-TO-ANALOG
CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN
SLAS224 –JUNE 1999
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
–0.1
–0.2
0
256
512
D
0
0.15
Digital Code
DIFFERENTIAL NONLINEARITY ERROR
0.2
768
1024
0.1
0.05
–0.05
–0.15
Figure 12
APPLICATION INFORMATION
general function
The TLV5637 is a dual 10-bit, single supply DAC, based on a resistor string architecture. It consists of a serial
interface, a speed and power-down control logic, a programmable internal reference, a resistor string, and a
rail-to-rail output buffer.
The output voltage (full scale determined by reference) is given by:
2 REF0x1000[V]
Where REF is the reference voltage and CODE is the digital input value in the range 0x000 to 0xFFF. Because
it is a 10-bit DAC, only D11 to D2 are used. D0 and D1 are ignored. A power on reset initially puts the internal
latches to a defined state (all bits zero).
serial interface
A falling edge of CS starts shifting the data bit-per-bit (starting with the MSB) to the internal register on the falling
edges of SCLK. After 16 bits have been transferred or CS rises, the content of the shift register is moved to the
target latches (DAC A, DAC B, BUFFER, CONTROL), depending on the control bits within the data word.
Figure 13 shows examples of how to connect the TLV5637 to TMS320, SPI
, and Microwire
.
TMS320
DSPFSX
CLKX
DX
TLV5637
CS
SCLK
DIN
SPI
I/O
SCK
MOSI
TLV5637
CS
SCLK
DIN
Microwire
I/O
SO
SK
TLV5637
CS
SCLK
DIN
Figure 13. Three-Wire Interface
Notes on SPI
and Microwire
: Before the controller starts the data transfer, the software has to generate a
falling edge on the I/O pin connected to CS. If the word width is 8 bits (SPI
and Microwire
), two write
operations must be performed to program the TLV5637. After the write operation(s), the holding registers or the
control register are updated automatically on the 16
th
positive clock edge.
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| TLV5637ID | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10bit 1us 2.7-5.5V 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 |
| TLV5637IDG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10Bit/1us DAC Serial Input Dual 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 |
| TLV5637IDR | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10Bit/1us DAC Serial Input Dual 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 |
| TLV5637IDRG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10Bit/1us DAC Serial Input Dual 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 |
| TLV5638 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7 V TO 5.5 V LOW POWER DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN |
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