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参数资料
| 型号： | MAX11201AEUB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/14页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SRL 120SPS 10UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 位数： | 24 |
| 采样率（每秒）： | 120 |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 444mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | * |
_______________________________________________________________________________________ 9
MAX11201
24-Bit, Single-Channel, Ultra-Low-Power, Delta
Sigma ADC with 2-Wire Serial Interface
Functional Diagram
Detailed Description
The MAX11201 is an ultra-low-power (< 245FA active),
high-resolution, low-speed, serial-output ADC. This device
provides the highest resolution per unit power in the indus-
try and is optimized for applications that require very high
dynamic range with low power such as sensors on a 4mA
to 20mA industrial control loop. The MAX11201 provides
a high-accuracy internal oscillator, which requires no
external components. When used with the specified data
rates, the internal digital filter provides more than 100dB
rejection of 50Hz or 60Hz line noise. The MAX11201 pro-
vides a simple, system-friendly, 2-wire serial interface in
the space-saving, 10-pin FMAX package.
Power-On Reset (POR)
The MAX11201 utilizes power-on reset (POR) supply-
monitoring circuitry on both the digital supply (DVDD)
and the analog supply (AVDD). The POR circuitry
ensures proper device default conditions after either a
digital or analog power-sequencing event.
The MAX11201 performs a self-calibration operation as
part of the startup initialization sequence whenever a
digital POR is triggered. It is important to have a stable
reference voltage available at the REFP and REFN pins
to ensure an accurate calibration cycle. If the reference
voltage is not stable during a POR event, the part should
be calibrated once the reference has stabilized. The part
can be programmed for calibration by using 26 SCLKs
as shown in Figure 3.
The digital POR trigger threshold is approximately 1.2V
and has 100mV of hysteresis. The analog POR trigger
threshold is approximately 1.25V and has 100mV of hys-
teresis. Both POR circuits have lowpass filters that pre-
vent high-frequency supply glitches from triggering the
POR. The analog supply (AVDD) and the digital supply
(DVDD) pins should be bypassed using 0.1F capaci-
tors placed as close as possible to the package pin.
Buffers
The MAX11201 includes signal input buffers capable of
reducing the average input current from 1.4FA/V on the
analog inputs to a constant 20nA. The MAX11201 analog
inputs provide > 100MI input impedance for connecting
directly to high-impedance sources.
Analog Inputs
The MAX11201 accepts two analog inputs (AINP and
AINN). The modulator input range is bipolar (-VREF to
+VREF).
Internal Oscillator
The MAX11201 incorporates a highly stable internal
oscillator that provides the system clock. The system
clock runs the internal state machine and is trimmed to
2.4576MHz (MAX11201A) or 2.25275MHz (MAX11201B).
The internal oscillator clock is divided down to run the
digital and analog timing.
TIMING
CLOCK GENERATOR
DIGITAL LOGIC
AND SERIAL-
INTERFACE
CONTROLLER
DIGITAL FILTER
(SINC4)
3RD-ORDER
DELTA-SIGMA
MODULATOR
CLK
AVDD
MAX11201
REFP
REFN
AINP
AINN
DVDD
GND
SCLK
RDY/DOUT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11201BEUB+ | 功能描述:模数转换器 - ADC 24-Bit Delta-Sigma 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 |
| MAX11201BEUB+T | 功能描述:模数转换器 - ADC 24-Bit Delta-Sigma 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 |
| MAX11201EUB+ | 功能描述:模数转换器 - ADC 24 Bit Sigma Delta 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 |
| MAX11201EUB+T | 功能描述:模数转换器 - ADC 24 Bit Sigma Delta 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 |
| MAX11202 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:24-Bit, Single-Channel, Ultra-Low-Power, Delta Sigma ADC with 2-Wire Serial Interface |
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