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参数资料
| 型号： | MAX5734BUTN+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/28页 |
| 文件大小： | 0K |
| 描述： | IC DAC 16BIT 32CHAN SER 56-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 设置时间： | 20µs |
| 位数： | 16 |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 32 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 2.5W |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-WFQFN 裸露焊盘 |
| 供应商设备封装： | 56-TQFN-EP（8x8） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 32 电压，单极 |
| 采样率（每秒）： | * |
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MAX5732–MAX5735
32-Channel, 16-Bit, Voltage-Output
DACs with Serial Interface
______________________________________________________________________________________
17
Note: The offset DAC of every device can be pro-
grammed with any of the four output voltage ranges.
However, the specifications in the Electrical
Characteristics table are only guaranteed (production
tested) for the offset code associated with each partic-
ular part number. For example, the MAX5734 specifica-
tions are only valid with the MAX5734 offset- DAC code
shown in Table 1.
The offset DAC is summed with GS (Figure 1). The offset
DAC can also cancel the offset of the output buffers.
Any change in the offset DAC affects all 32 DACs.
The offset DAC is also configured identically to the
other 32 DACs with an input and DAC register. Write to
the offset DAC through the serial interface by using
control bits C2, C1, and C0 = 001 followed by the data
bits D15–D0. The
CLR command affects the offset DAC
as well as the other DACs.
The data format for the offset DAC codes are: control bits
C2, C1, and C0 = 011, address bits A5–A0 = 100000, 7
don’t-care bits, and 16 data bits as shown in Table 2.
Output Amplifiers (OUT0–OUT31)
All DAC outputs are internally buffered. The internal
buffers provide gain, improved load regulation, and tran-
sition glitch suppression for the DAC outputs. The output
buffers slew at 1V/s and can drive 10k
in parallel with
100pF. The output buffers are powered by AVCC and
VSS. AVCC and VSS determine the maximum output
voltage range of the device.
The input code, the voltage reference, the offset DAC
output, the voltage on GS, and the gain of the output
amplifier determine the output voltage. Calculate VOUT
as follows:
where GAIN = 5/3 for the MAX5732, or GAIN = 10/3 for
the MAX5733/MAX5734/MAX5735.
Load-DAC (
LDAC) Input
The MAX5732–MAX5735 feature an active-low
LDAC
logic input that allows the outputs OUT_ to update
asynchronously. Keep
LDAC high during normal opera-
tion (when the device is controlled only through the ser-
ial interface). Drive
LDAC low to simultaneously update
all DAC outputs with data from their respective input
registers. Figure 3 shows the
LDAC timing with respect
to OUT_.
A software command can also activate the
LDAC oper-
ation. To activate
LDAC by software, set control bits
V
GAIN
V
DAC code
offset DAC code
V
OUT
REF
GS
=
××
()
+
2
16
PART NUMBER
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
MAX5732
0000
000000000000
MAX5733
0000
000000000000
MAX5734
0100
000000000000
MAX5735
1000
000000000000
Table 1. Offset DAC Codes
OUT_
±0.5 LSB
tS
tLDAC
LDAC
Figure 3.
LDAC Timing
Note: For the MAX5732, the maximum code for the offset DAC is 16384. For the MAX5733/MAX5734/MAX5735, the maximum code
for the offset DAC is 40000.
Table 2. Serial Data Format
CONTROL
BITS
ADDRESS
BITS
DON’T-
CARE
BITS
DATA BITS
C2, C1,
AND C0
A5–A0
—
D15–D0
011
100000
XXXXXXX
See table 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5734CCTN | 制造商:Maxim Integrated Products 功能描述:32-CHANNEL, 16-BIT, VOLTAGE-OUTPUT DACS WITH - Rail/Tube |
| MAX5734CETN | 制造商:Maxim Integrated Products 功能描述:32-CHANNEL, 16-BIT, VOLTAGE-OUTPUT DACS WITH - Rail/Tube |
| MAX5734CUCB | 制造商:Maxim Integrated Products 功能描述:32-CHANNEL, 16-BIT, VOLTAGE-OUTPUT DACS WITH - Rail/Tube |
| MAX5734CUTN | 制造商:Maxim Integrated Products 功能描述:32-CHANNEL, 16-BIT, VOLTAGE-OUTPUT DACS WITH - Rail/Tube |
| MAX5734EVC16 | 功能描述:数模转换器- DAC 32-Channel 16-Bit Voltage-Output DACs with Serial Interface 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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