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參數(shù)資料
| 型號(hào)： | MAX11049ETN+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT 250KSPS SAR 56TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 250k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 8 |
| 功率耗散（最大）： | 3.81W |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 56-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 56-TQFN-EP（8x8） |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 8 個(gè)單端，單極 |
MAX11047–MAX11049/MAX11057–MAX11059
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
______________________________________________________________________________________
15
Input Range and Protection
The full-scale analog input voltage is a product of the
reference voltage. For the devices, the input is unipolar
in the range of:
In external reference mode, drive VREFIO with a 3.0V to
4.25V source, resulting in a full-scale input range of
3.662V to 5.188V, respectively.
All analog inputs are fault-protected up to ±20mA. The
devices include an input clamping circuit that activates
when the input voltage at the analog input is above
(VAVDD + 300mV) or below -300mV. The clamp circuit
remains high impedance while the input signal is within
the range of 0V to +VAVDD and draws little to no cur-
rent. However, when the input signal exceeds the range
of 0V to +VAVDD, the clamps begin to turn on.
Consequently, to obtain the highest accuracy, ensure
that the input voltage does not exceed the range of 0V
to +VAVDD.
To make use of the input clamps, connect a resistor
(RS) between the analog input and the voltage source
to limit the voltage at the analog input so that the fault
current into the devices does not exceed ±20mA. Note
that the voltage at the analog input pin limits to approxi-
mately 7V during a fault condition so the following
equation can be used to calculate the value of RS:
where VFAULT_MAX is the maximum voltage that the
source produces during a fault condition.
R
VV
mA
S
FAULT MAX
=
_
7
20
0
50
4 096
to
V
x
REFIO
+
.
MAX11047/MAX11048/MAX11049/
MAX11057/MAX11058/MAX11059
CLAMP
S/H
16-/14-BIT ADC
CLAMP
S/H
16-/14-BIT ADC
REF
BUF
CONFIGURATION
REGISTERS
INTERFACE
AND
CONTROL
BANDGAP
REFERENCE
8x
16-/1
4-BIT
REGISTERS
BIDIRECTIONAL
DR
IVERS
CH0
SOURCE
AVDD
AGNDS
*CONNECTED INTERNALLY ON THE TQFN PARTS
**MAX11047/MAX11048/MAX11049
MAX11049/MAX11059
AGND
CH7
DB15**
DB0/CR0
DB3/CR3
DB4
EOCb
SHDN
CONVST
CSb
RDb
WRb
DGND
DVDD
RDC
RDC_SENSE*
REFIO
INT REF
10k
EXT REF
RS
INPUT
SIGNAL
PIN
VOLTAGE
Figure 1. Required Setup for Clamp Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1104EUA | 制造商:Maxim Integrated Products 功能描述: |
| MAX1104EUA+ | 功能描述:ADC / DAC多通道 8-Bit CODEC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX1104EUA+T | 功能描述:ADC / DAC多通道 8-Bit CODEC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX1104EUA+TW | 功能描述:ADC / DAC多通道 8-Bit CODEC +2.7V to +5.5V Single Supply RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX1104EUA+W | 功能描述:ADC / DAC多通道 8-Bit CODEC +2.7V to +5.5V Single Supply RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
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