參數(shù)資料
型號： MAX1407CAI+
廠商： Maxim Integrated Products
文件頁數(shù)： 33/48頁
文件大?。?/td> 0K
描述： IC DAS 16BIT LP 28-SSOP
產品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 46
類型： 數(shù)據(jù)采集系統(tǒng)（DAS）
分辨率（位）： 16 b
采樣率（每秒）： 60
數(shù)據(jù)接口： 串行
電壓電源： 模擬和數(shù)字
電源電壓： 2.7 V ~ 3.6 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 28-SSOP（0.209"，5.30mm 寬）
供應商設備封裝： 28-SSOP
包裝： 管件
MAX1407/MAX1408/MAX1409/MAX1414
Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
______________________________________________________________________________________
39
tor spreads the transient-load current from the sampler
over time due to the RC time constant of the circuit.
However, an improperly chosen series resistance can
hinder performance in high-resolution converters. The
settling time of the RC network can limit the speed at
which the converter can operate properly, or reduce
the settling accuracy of the sampler. In practice, this
means ensuring that the RC time constant, resulting
from the product of the driving source impedance and
the capacitance presented by both the device’s input
and any external capacitance is sufficiently small to
allow settling to the desired accuracy. Table 10 sum-
marizes the maximum allowable series resistance vs.
external shunt capacitance for each different gain set-
ting in order to ensure 16-bit performance in unbuffered
mode (for 60sps conversion rate).
Performing a Conversion or Offset-
Calibration with the ADC
Upon power-up, the MAX1407/MAX1408/MAX1409/
MAX1414 are in Standby mode. At this point, the ADC
register default settings are set for a normal ADC conver-
sion (MODE = 0), conversion rate of 30Hz (RATE = 0),
gain of 1/3 V/V (GAIN [00]), input buffers bypassed and
powered down (BUFP = BUFN = 0), and unipolar mode
Table 9. Power States of Individual Blocks at Different Modes of Operation
POWER MODES
CIRCUIT BLOCKS
SLEEP
STANDBY
IDLE
RUN
WAKE-UP EVENT
Serial Interface
xxxx
x
Wake-Up Circuitry
xxxx
x
Crystal Oscillator
xxxx
x
RTC with Alarm
xxxx
x
RESET Voltage Monitor
xxxx
x
Low VDD Voltage Monitor
—
xxx
x
Master Bias Circuit
—
xxx
x
PLL
—
xxx
x
FOUT
—
xxx
x
SHDN = High
—
xxx
x
DAC1
——
x
N/A
DAC2
——
x
N/A
Bandgap
——
x
N/A
Bandgap Buffer
——
x
N/A
Signal Detect Comparator
——
x
N/A
ADC Multiplexer
——
x
N/A
ADC Input Buffers
———
x
N/A
ADC
———
x
N/A
x = powered-up
N/A = programming the parts into the wake-up mode would not alter the content of these blocks
Table 10. REXT, CEXT Values for Less than 16-Bit Gain Error in Unbuffered Mode
EXTERNAL RESISTANCE REXT (k
)
PGA GAIN
(V/V)
CEXT = 0pF
CEXT = 50pF
CEXT = 100pF
CEXT = 200pF
CEXT = 500pF
1
194
56
33
19
9
2
100
30
16
9
4.5
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相關代理商/技術參數(shù)
參數(shù)描述
MAX1407CAI+ 功能描述:ADC / DAC多通道 16-Bit 4Ch 60sps 1.35V Precision ADC RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX1407CAI+T 功能描述:ADC / DAC多通道 16-Bit 4Ch 60sps 1.35V Precision ADC RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX1407CAI-T 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX1407EAI+ 制造商:Maxim Integrated Products 功能描述:LOW-POWER 16-BIT MULTICHANNEL DAS - Rail/Tube
MAX1407EAI+T 制造商:Maxim Integrated Products 功能描述:LOW-POWER 16-BIT MULTICHANNEL DAS - Tape and Reel
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