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参数资料
| 型号： | DAC7654YTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 12 us SETTLING TIME, 16-BIT DAC, PQFP64 |
| 封装： | GREEN, PLASTIC, LQFP-64 |
| 文件页数： | 11/33页 |
| 文件大小： | 804K |
| 代理商： | DAC7654YTG4 |
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DAC7654
SBAS263A NOVEMBER 2003 REVISED DECEMBER 2005
www.ti.com
19
THEORY OF OPERATION
The DAC7654 is a quad voltage output, 16-bit DAC. The
architecture is an R2R ladder configuration with the three
most significant bits (MSBs) segmented, followed by an
operational amplifier that serves as a buffer. Each DAC
has its own R2R ladder network, segmented MSBs, and
output op amp, as shown in Figure 53. The minimum
voltage output (zero-scale) and maximum voltage output
(full-scale) are set by the internal voltage references and
the resistors associated with the output operational
amplifier.
The digital input is a 24-bit serial word that contains a 2-bit
address code for selecting one of four DACs, a quick load
bit, five unused bits, and the 16-bit DAC code (MSB first).
The converters can be powered from either a single +5V
supply or a dual
±5V supply. The device offers a reset
function that immediately sets all DAC output voltages and
DAC registers to mid-scale (code 8000h) or to zero-scale
(code 0000h). See Figure 54 and Figure 55 for basic
single- and dual-supply operation of the DAC7654.
R
2R
V
REFH
V
REFL
V
OUT
V
OUTS2
V
OUTS1
OFSR2
OFSR1
13K
13K
12K
13K
11K
100
Figure 53. DAC7654 Architecture
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DAC7664 | 制造商:TI 制造商全称:Texas Instruments 功能描述:16-BIT, QUAD VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER |
| DAC7664YBR | 功能描述:数模转换器- DAC DAC Quad 16 Bit 12uS Settling Time RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC7664YBRG4 | 功能描述:数模转换器- DAC DAC Quad 16 Bit 12uS Settling Time RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC7664YBT | 功能描述:数模转换器- DAC DAC Quad 16 Bit 12uS Settling Time RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC7664YBTG4 | 功能描述:数模转换器- DAC DAC Quad 16 Bit 12uS Settling Time RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
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