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参数资料
| 型号： | MAX547ACMH |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC OCTL V-OUT 13BIT 44-MQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 设置时间： | 5µs |
| 位数： | 13 |
| 数据接口： | 并联 |
| 转换器数目： | 8 |
| 电压电源： | 双 ± |
| 功率耗散（最大）： | 889mW |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 管件 |
| 输出数目和类型： | 8 电压，单极；8 电压，双极 |
| 采样率（每秒）： | * |
_______________________________________________________________________________________
9
__________Applications Information
Multiplying Operation
The MAX547 can be used for multiplying applications.
Its reference accepts both DC and AC signals. The volt-
age at each REF_ input sets the full-scale output voltage
for its respective DACs. Since the reference inputs
accept only positive voltages, multiplying operation is
limited to two quadrants. Do not bypass the reference
inputs when applying AC signals to them. Refer to the
graphs in the
Typical Operating Characteristics for
dynamic performance of the DACs and output buffers.
Digital Code and Analog Output Voltage
The MAX547 uses offset binary coding. A 13-bit twos-
complement code can be converted to a 13-bit offset
binary code by adding 212 = 4096.
Bipolar Output Voltage Range (AGND_ = 0V)
For symmetrical bipolar operation, tie AGND_ to the
system ground. Table 3 shows the relationship between
digital code and output voltage. The following para-
graphs give a detailed explanation of this mode.
The DAC ladder output voltage (VDAC) is multiplied by
2 and level shifted by the reference voltage, which is
internally connected to the output amplifiers (Figure 1).
Since the feedback resistors are the same size, the
amplifier’s output voltage is 2 times the voltage at its
noninverting input, minus the reference voltage.
where VDAC is the voltage at the amplifier’s noninvert-
ing input (DAC ladder output voltage), and REF_ is the
voltage applied to the reference input of the DAC.
With AGND_ connected to the system ground, the DAC
ladder output voltage is:
where D is the numeric value of the DAC’s binary input
code and n is the DAC’s resolution (13 bits). Replace
VDAC in the equation and calculate the output voltage.
D ranges from 0 (20) to 8191 (213 - 1).
1LSB
REF–
1
4096
=
VOUT_
2
D
2
REF–
= REF–
D
2
– 1
REF–
D
4096
–1
13
12
=
()
=
V
D
2
(REF–)
D
2
(REF–)
DAC
n13
==
VOUT
2(V
)
REF–
DAC
=
Table 2. Interface Truth Table
MAX547
Octal, 13-Bit Voltage-Output
DAC with Parallel Interface
–
C
—
L
—
R
–
FUNCTION
1
Both latches transparent
1
Both latches latched
1
Both latches latched
–
L
—
D
—
–
0
1
Input latch transparent
1
Input latch latched
1
Input latch latched
X
–
W
—
R
–
0
1
X
–
C
—
S
–
0
1
X
1
X
0
X
1
X
0
All input and DAC latches at
1000hex, outputs at AGND–
X
1
DAC latch transparent
X
0
CS
WR
A0–A2
D0–D12
LD–
NOTES:
1. ALL INPUT RISE AND FALL TIMES MEASURED FROM 10% TO 90% OF
+5V. tr = tf = 5ns.
2. MEASUREMENT REFERENCE LEVEL IS
(VINH + VINL)/2.
3. IF LD– IS ACTIVATED WHILE WR IS LOW THEN LD– MUST STAY LOW
FOR t3 OR LONGER AFTER WR GOES HIGH.
t1
t2
t9
t10
t7
t8
t5
t6
t3
Figure 3. Write-Cycle Timing
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| MAX547ACMH+ | 功能描述:数模转换器- DAC 13-Bit 8Ch Precision DAC 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 |
| MAX547ACMH+D | 制造商:Maxim Integrated Products 功能描述:DAC 8CH R-2R 13-BIT 44MQFP - Trays |
| MAX547ACMH+T | 功能描述:数模转换器- DAC 13-Bit 8Ch Precision DAC 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 |
| MAX547ACMH-T | 功能描述:数模转换器- DAC 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 |
| MAX547ACQH | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
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