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參數(shù)資料
| 型號： | MAX11213EVKIT+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/27頁 |
| 文件大小： | 0K |
| 描述： | KIT EVAL MAX11213 |
| 標準包裝： | 1 |
| 系列： | * |
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13
Maxim Integrated
16-Bit, Single-Channel, Ultra-Low-Power, Delta-
Sigma ADCs with Programmable Gain and GPIO
MAX11203/MAX11213
It is not always necessary to transition to a high-imped-
ance state between channel selections, but depends on
the source analog signals as well as the control structure
of the multiplexed switches.
Digital Programmable Gain (MAX11213)
The MAX11213 offers programmable gain settings that
can be digitally set to 1, 2, 4, 8, 16, 32, 64, or 128. The
DGAIN_ bits in the CTRL3 register (see Table 14) config-
ure the digital gain setting and control the input referred
gain. The MAX11213’s input range is 0V to VREF/
gain (unipolar) or ±VREF/gain (bipolar). The MAX11213
always outputs 16 bits of data. But as this is a digital
programmable gain, the noise floor remains constant,
depending on the output rate setting. At an output rate of
10sps, as shown in Figure 4, the noise floor is such that
all gain settings from 1 to 64 provide 16 bits of noise-free
resolution. A gain setting of 128 at 10sps means the LSB
is below the noise floor. The MAX11213 digital gain is
beneficial for low-voltage applications that only require a
small portion of the 0V to VREF or ±VREF ranges.
Table 4c. Data Command to Select Channel AIN3 in Figure 3
Figure 4. MAX11213 Digital Programmable Gain Example (10sps Output Rate)
Figure 3. MAX11203 GPIOs Drive an External 4-Channel
Switch (MAX313)
AIN1
AIN2
AIN3
AIN4
IN1
IN2
IN3
IN4
COM1
COM2
COM3
COM4
GPIO1
GPIO2
GPIO3
GPIO4
AINP
AINN
MAX313
LOGIC
SWITCH
0
OFF
1ON
MAX11203
MAX313
MSB
LSB
NOISE FLOOR
REMAINS CONSTANT
AT 0.57VRMS
BITS USED FOR GAIN = 16
BITS USED FOR GAIN = 2
BITS USED FOR GAIN = 1
SUB-LSBs
16-BIT OUTPUT DATA CYCLE
VREF = 3V
BITS USED FOR GAIN = 128
BIT
B7
B6
B5
B4
B3
B2
B1
B0
BIT NAME
DIR4
DIR3
DIR2
DIR1
DIO4
DIO3
DIO2
DIO1
VALUE
1
0
1
0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11213EVKIT+ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX11213 EVAL KIT RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MAX11214EUG+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX11214EVKIT# | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX11214 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MAX11215EUG+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX1121EGK | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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