参数资料
型号: MAX1257BETM+T
厂商: Maxim Integrated Products
文件页数: 8/43页
文件大小: 0K
描述: IC ADC/DAC 12BIT 48-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: ADC,DAC
分辨率(位): 12 b
采样率(每秒): 225k
数据接口: 串行
电压电源: 模拟和数字
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-WFQFN 裸露焊盘
供应商设备封装: 48-TQFN-EP(7x7)
包装: 带卷 (TR)
MAX1220/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
16
______________________________________________________________________________________
Pin Description
PIN
MAX1220
MAX1257
MAX1258
NAME
FUNCTION
1, 2
GPIOA0, GPIOA1
General-Purpose I/O A0, A1. GPIOA0, A1 can sink and source 15mA.
3
4
EOC
Active-Low End-of-Conversion Output. Data is valid after the falling edge
of EOC.
4
7
DVDD
Digital Positive-Power Input. Bypass DVDD to DGND with a 0.1F
capacitor.
5
8
DGND
Digital Ground. Connect DGND to AGND.
6
9
DOUT
Serial-Data Output. Data is clocked out on the falling edge of the SCLK
clock in modes 00, 01, and 10. Data is clocked out on the rising edge of
the SCLK clock in mode 11. It is high impedance when CS is high.
7
10
SCLK
Serial-Clock Input. Clocks data in and out of the serial interface. (Duty
cycle must be 40% to 60%.) See Table 5 for details on programming the
clock mode.
8
11
DIN
Serial-Data Input. DIN data is latched into the serial interface on the
falling edge of SCLK.
9–12, 16–19
12–15,
22–25
OUT0–OUT7
DAC Outputs
13
18
AVDD
Positive Analog Power Input. Bypass AVDD to AGND with a 0.1F
capacitor.
14
19
AGND
Analog Ground
15, 23, 32, 33
N.C.
No Connection. Not internally connected.
20
26
LDAC
Active-Low Load DAC. LDAC is an asynchronous active-low input that
updates the DAC outputs. Drive LDAC low to make the DAC registers
transparent.
21
27
CS
Active-Low Chip-Select Input. When CS is low, the serial interface is
enabled. When CS is high, DOUT is high impedance.
22
28
RES_SEL
Reset Select. Select DAC wake-up mode. Set RES_SEL low to wake up
the DAC outputs with a 100k
resistor to AGND or set RES_SEL high to
wake up the DAC outputs with a 100k
resistor to VREF. Set RES_SEL
high to power up the DAC input register to FFFh. Set RES_SEL low to
power up the DAC input register to 000h.
24, 25
GPIOC0, GPIOC1
General-Purpose I/O C0, C1. GPIOC0, C1 can sink 4mA and source 2mA.
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MAX1258BETM 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40
MAX1258BETM+ 功能描述:ADC / DAC多通道 12-Bit 16Ch 300ksps 5.5V Precision ADC RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40
MAX1258BETM+T 功能描述:ADC / DAC多通道 12-Bit 16Ch 300ksps 5.5V Precision ADC RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40
MAX1258BETM-T 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40