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参数资料
| 型号： | MAX5223EKA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/11页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT DUAL LP SER SOT23-8 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 设置时间： | 50µs |
| 位数： | 8 |
| 数据接口： | 串行 |
| 转换器数目： | 2 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 |
| 供应商设备封装： | SOT-23-8 |
| 包装： | 标准包装 |
| 输出数目和类型： | 2 电压，单极 |
| 采样率（每秒）： | * |
| 产品目录页面： | 1397 (CN2011-ZH PDF) |
| 其它名称： | MAX5223EKA+TDKR |
Applications Information
The MAX5223 is specified for single-supply operation
with VDD ranging from +2.7V to +5.5V, covering all
commonly used supply voltages in +3V and +5V sys-
tems.
Initialization
An internal POR circuit forces the outputs to zero scale
and initializes all internal registers to zero. Perform an
initial write operation to set the outputs to the desired
voltage at power-up.
Power-Supply and
Ground Management
GND should be connected to the highest quality
ground available. Bypass VDD with a 0.1F to 0.22F
capacitor to GND. The reference input can be used
without bypassing. For optimum line- and load-transient
response and noise performance, bypass the reference
input with 0.1F to 4.7F to GND. Careful PC board lay-
out minimizes crosstalk among DAC outputs, the refer-
ence, and digital inputs. Separate analog lines with
ground traces between them. Make sure that high-fre-
quency digital lines are not routed in parallel to analog
lines.
MAX5223
Low-Power, Dual, 8-Bit, Voltage Output
Serial DAC in 8-Pin SOT23
10
______________________________________________________________________________________
12
1
256
8
LSB
REF
ANALOG OUTPUT
REF
D
=×
Table 4. Code Table
0V
0
+×
REF
1
256
1
0
+×
REF
127
256
1
0
+×
=+
REF
128
256
2
0
1
+×
REF
129
256
1
0
1
+×
REF
255
256
1
ANALOG
OUTPUT
D0
D1
D2
D3
D4
D5
D6
D7
DAC CONTENTS
Note:
where D = decimal
value of digital input
Chip Information
TRANSISTOR COUNT: 1480
PROCESS TECHNOLOGY: BiCMOS
CS
SCLK
DIN
tDS
tDH
tCL
tCH
tCSS
tCSPWH
tCSH
Figure 3. Detailed Serial-Interface Timing Diagram
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