参数资料
型号: MAX11359AETL+T
厂商: Maxim Integrated Products
文件页数: 22/67页
文件大小: 0K
描述: IC DAS SYSTEM 16BIT 40-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 数据采集系统(DAS)
分辨率(位): 16 b
采样率(每秒): 512
数据接口: MICROWIRE?,QSPI?,串行,SPI?
电压电源: 模拟和数字
电源电压: 1.8 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(6x6)
包装: 带卷 (TR)
MAX11359A
16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
29
Maxim Integrated
Watchdog
Enable the watchdog timer by writing a 1 to the WDE
bit in the CLK_CTRL register. After enabling the watch-
dog timer, the device asserts
RESET for 250ms, if the
watchdog address register is not written every 500ms.
Due to the asynchronous nature of the watchdog timer,
the watchdog timeout period varies between 500ms
and 750ms. Write a 0 to the WDE bit to disable the
watchdog timer. See Figure 11 for a block diagram of
the watchdog timer.
High-Frequency Clock
An internal oscillator and a frequency-locked loop (FLL)
are used to generate a 4.9152MHz ±1% high-frequen-
cy clock. This clock and derivatives are used internally
by the ADC, analog switches, and PWM. This clock sig-
nal outputs to CLK. When the FLL is enabled, the high-
frequency clock is locked to the 32.768kHz reference.
If the FLL is disabled, the high-frequency clock is free-
running. At power-up, the CLK pin defaults to a
2.4576MHz clock output, which is compatible with most
Cs. See Figure 12 for a block diagram of the high-fre-
quency clock.
User-Programmable I/Os
The MAX11359A provides four digital programmable
I/Os (UPIO1–UPIO4). Configure UPIOs as logic inputs
or outputs using the UPIO control register. Configure
the internal pullups using the UPIO setup register, if
required. At power-up, the UPIOs are internally pulled
up to DVDD. UPIO_ outputs can be referenced to
DVDD or CPOUT. See the
UPIO__CTRL Register and
UPIO_SPI Register sections for more details on config-
uring the UPIO_ pins.
32KIN
32KOUT
32.768kHz OSCILLATOR
32kHz
OSCILLATOR
OSCE
32K
Figure 9. 32kHz Crystal-Oscillator Block Diagram
IO32E
CLK32K
CK32E
OSCE
CLK32K I/O CONTROL
2:1
MUX
1
0
IO32E
32K
M32K
Figure 10. CLK32K I/O Block Diagram
D
Q
R
CK
D
Q
R
CK
DIVIDE-
BY-8192
32K
WDE
POR
WDW
WATCHDOG TIMER
POR PULSES HIGH DURING POWER-UP.
WDW PULSES HIGH DURING WATCHDOG REGISTER WRITE.
4Hz
WDTO
Figure 11. Watchdog Timer Block Diagram
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MAX1135BCAP 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1135BCAP+ 功能描述:模数转换器 - ADC 16-Bit 150ksps 3.3V Single Supply RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1135BCAP+T 功能描述:模数转换器 - ADC 16-Bit 150ksps 3.3V Single Supply RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1135BCAP-T 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1135BEAP 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32