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参数资料
| 型号： | MAX5380NEUK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/12页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT 2WIRE SER SOT23-5 |
| 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： | 8 |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 571mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 1 电压，单极 |
| 采样率（每秒）： | * |
MAX5380/MAX5381/MAX5382
Low-Cost, Low-Power, 8-Bit DACs with
2-Wire Serial Interface in SOT23
_______________________________________________________________________________________
9
Power-On Reset
The MAX5380/MAX5381/MAX5382 have a power-on
reset circuit to set the DAC’s output to 0 when VDD is
first applied or when VDD dips below 1.7V (typ). This
ensures that unwanted DAC output voltages will not
occur immediately following a system startup, such as
after a loss of power. The output glitch at startup is typi-
cally less than 50mV.
Shutdown Mode
The MAX5380/MAX5381/MAX5382 include a software-
controlled shutdown mode that reduces the supply cur-
rent to <1A. All internal circuitry is disabled, and an
internal 10k
resistor is placed from OUT to GND to
ensure 0V at OUT while in shutdown. The device enters
shutdown in less than 5s and exits shutdown in less
than 50s.
Digital Section
Serial Interface
The MAX5380/MAX5381/MAX5382 use a simple 2-wire
serial interface requiring only two I/O lines (2-wire bus)
of a standard microprocessor (P) port. Figure 3 shows
the timing diagram for signals on the 2-wire bus.
The two bus lines (SDA and SCL) must be high when
the bus is not in use. The MAX5380/MAX5381/
MAX5382 are receive-only devices (slaves) and must
be controlled by a bus master device. Figure 4 shows a
typical application where up to four devices can be
connected to the bus, provided they have different
address settings. External pull-up resistors are not nec-
essary on these lines (when driven by push-pull dri-
vers), though these DACs can be used in applications
where pull-up resistors are required (such as in I2C
systems) to maintain compatibility with existing circuit-
ry. The serial interface operates at SCL rates up to
400kHz. The SDA state is allowed to change only while
SCL is low, with the exception of START and STOP con-
ditions as shown in Figure 5. Each transmission con-
sists of a START condition sent by the bus master
SCL
SDA
tLOW
tHIGH
tF
tR
tHD: STA
tHD: DAT
tHD: STA
tSU: DAT
tSU: STA
tBUF
tSU: STO
START CONDITION
STOP CONDITION
REPEATED START CONDITION
START CONDITION
Figure 3. 2-Wire Serial Interface Timing Diagram
C
SDA
SCL
RS*
VDD
OFFSET ADJUSTMENT
THRESHOLD ADJUSTMENT
GAIN ADJUSTMENT
*RS IS OPTIONAL.
SCL
SDA
VDD
OUT
MAX5380M
2V REFERENCE
SCL
SDA
VDD
OUT
MAX5381N
4V REFERENCE
SCL
SDA
VDD
OUT
MAX5382P
VDD REFERENCE
Figure 4. Typical Application Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5380PEUK | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX5380PEUK+ | 制造商:Maxim Integrated Products 功能描述:DAC SGL CURRENT STEERING 8BIT 5PIN SOT-23 - Cut Tape Product |
| MAX5380PEUK+T | 功能描述:数模转换器- DAC 8-Bit 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 |
| MAX5380PEUK-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 |
| MAX5381LEUK | 制造商:Maxim Integrated Products 功能描述:LOW-COST LOW-POWER 8-BIT DACS WITH 2-WIRE SERIAL INTERFACE I - Rail/Tube |
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