參數(shù)資料
型號(hào)： MAX1282EVKIT
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 4/23頁(yè)
文件大?。?/td> 0K
描述： EVAL KIT FOR MAX1282
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 12
采樣率（每秒）： 400k
數(shù)據(jù)接口： 串行
輸入范圍： ±VREF/2
在以下條件下的電源（標(biāo)準(zhǔn)）： 13.75mW @ 400kSPS
工作溫度： 0°C ~ 70°C
已用 IC / 零件： MAX1282
已供物品： 板，CD
Table 1. Channel Selection in Single-Ended Mode (SGL/
DIF = 1)
Table 2. Channel Selection in Pseudo-Differential Mode (SGL/
DIF = 0)
MAX1282/MAX1283
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
12
______________________________________________________________________________________
Track/Hold
The T/H enters its tracking mode on the falling clock
edge after the fifth bit of the 8-bit control word has been
shifted in. It enters its hold mode on the falling clock
edge after the eighth bit of the control word has been
shifted in. If the converter is set up for single-ended
inputs, IN- is connected to COM and the converter
samples the “+” input. If the converter is set up for dif-
ferential inputs, the difference of
[(IN+) - (IN-)] is con-
verted. At the end of the conversion, the positive input
connects back to IN+ and CHOLD charges to the input
signal.
The time required for the T/H to acquire an input signal
is a function of how quickly its input capacitance is
charged. If the input signal’s source impedance is high,
the acquisition time lengthens, and more time must be
allowed between conversions. The acquisition time,
tACQ, is the maximum time the device takes to acquire
the signal and the minimum time needed for the signal
to be acquired. It is calculated by the following equa-
tion:
tACQ = 9 (RS + RIN) 18pF
where RIN = 800 and RS = the source impedance of
the input signal; tACQ is never less than 400ns
(MAX1282) or 625ns (MAX1283). Note that source
impedances below 2k do not significantly affect the
ADC’s AC performance.
Input Bandwidth
The ADC’s input tracking circuitry has a 6MHz
(MAX1282) or 3MHz (MAX1283) small-signal band-
width, so it is possible to digitize high-speed transient
events and measure periodic signals with bandwidths
exceeding the ADC’s sampling rate by using under-
sampling techniques. To avoid high-frequency signals
being aliased into the frequency band of interest, anti-
alias filtering is recommended.
Analog Input Protection
Internal protection diodes, which clamp the analog input
to VDD1 and GND, allow the channel input pins to swing
from GND - 0.3V to VDD1 + 0.3V without damage.
However, for accurate conversions near full scale, the
inputs must not exceed VDD1 by more than 50mV or be
lower than GND by 50mV.
If the analog input exceeds 50mV beyond the sup-
plies, do not allow the input current to exceed 2mA.
Starting a Conversion
Start a conversion by clocking a control byte into DIN.
With CS low, each rising edge on SCLK clocks a bit from
DIN into the MAX1282/MAX1283’s internal shift register.
After CS falls, the first arriving logic “1” bit defines the
control byte’s MSB. Until this first “start” bit arrives, any
number of logic “0” bits can be clocked into DIN with no
effect. Table 3 shows the control-byte format.
The MAX1282/MAX1283 are compatible with SPI/
QSPI/MICROWIRE devices. For SPI, select the correct
clock polarity and sampling edge in the SPI control reg-
isters: set CPOL = 0 and CPHA = 0. MICROWIRE, SPI,
and QSPI all transmit a byte and receive a byte at the
same time. Using the Typical Operating Circuit, the sim-
plest software interface requires only three 8-bit transfers
to perform a conversion (one 8-bit transfer to configure
the ADC, and two more 8-bit transfers to clock out the
SEL2
SEL1
SEL0
CH0
CH1
CH2
CH3
COM
00
1
+
–
10
1
+
–
01
0
+
–
11
0
+
–
SEL2
SEL1
SEL0
CH0
CH1
CH2
CH3
00
1
+
–
01
0
+
–
10
1
–
+
11
0
–
+
相關(guān)PDF資料
PDF描述
SDR1105-330KL INDUCTOR POWER 33UH 10% SMD
RCB13DHND CONN EDGECARD 26POS DIP .050 SLD
MAX1162EVKIT EVAL KIT FOR MAX1162
VI-22Y-EW CONVERTER MOD DC/DC 3.3V 66W
1301540056 CORD Y-SPLICE 1-2447 & 2-2547
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1283ACEE 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1283AEEE 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1283BCUE 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1283BCUE+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 300ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1283BCUE+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 300ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*