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參數(shù)資料
| 型號： | MAX1115EKA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | Single-Supply, Low-Power, Serial 8-Bit ADCs |
| 中文描述： | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | SOT-23, 8 PIN |
| 文件頁數(shù)： | 7/12頁 |
| 文件大小： | 379K |
| 代理商： | MAX1115EKA |
Input Voltage Range
Internal protection diodes that clamp the analog input
to V
DD
and GND allow the input pin (CH0) to swing
from (GND - 0.3V) to (V
DD
+ 0.3V) without damage.
However, for accurate conversions, the inputs must not
exceed (V
DD
+ 50mV) or be less than (GND - 50mV).
Input Bandwidth
The ADC
’
s input tracking circuitry has a 4MHz small-
signal bandwidth, so it is possible to digitize high-
speed transient events and measure periodic signals
with bandwidths exceeding the ADC
’
s sampling rate by
using undersampling techniques. Anti-alias filtering is
recommended to avoid high-frequency signals being
aliased into the frequency band of interest.
Serial Interface
The MAX1115/MAX1116 have a 3-wire serial interface.
The CNVST and SCLK inputs are used to control the
device, while the three-state DOUT pin is used to
access the conversion results.
The serial interface provides connection to microcon-
trollers (μCs) with SPI, QSPI, and MICROWIRE serial
interfaces at clock rates up to 5MHz. The interface sup-
ports either an idle high or low SCLK format. For SPI
and QSPI, set CPOL = CPHA = 0 or CPOL = CPHA = 1
in the SPI control registers of the μC. Figure 5 shows
the MAX1115/MAX1116 common serial-interface con-
nections. See Figures 6a
–
6d for details on the serial-
interface timing and protocol.
M
Single-Supply, Low-Power, Serial 8-Bit ADCs
_______________________________________________________________________________________
7
V
DD
I/O
SCK (SK)
MISO (SI)
GND
DOUT
SCLK
CONVST
GND
V
DD
0.1
μ
F
1
μ
F
CH0
ANALOG
INPUTS
MAX1115
MAX1116
CPU
V
DD
Figure 3. Typical Operating Circuit
GND
C
HOLD
16pF
CAPACITIVE DAC
V
DD
2
COMPARATOR
R
IN
6.5k
AUTO-ZERO
RAIL
TRACK
HOLD
CH0
Figure 4. Equivalent Input Circuit
CONVST
SCLK
DOUT
I/O
SCK
MISO
SS
a) SPI
CONVST
SCLK
DOUT
CONVST
SCLK
DOUT
CS
SCK
MISO
+3V
SS
b) QSPI
MAX1115
MAX1116
MAX1115
MAX1116
MAX1115
MAX1116
I/O
SK
SI
c) MICROWIRE
+3V
Figure 5. Common Serial-Interface Connections
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PDF描述 |
|---|---|
| MAX1116EKA | Single-Supply, Low-Power, Serial 8-Bit ADCs |
| MAX1117EKA | Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs |
| MAX1118EKA | Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs |
| MAX1119 | Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs |
| MAX1119EKA | Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1115EKA+ | 制造商:Maxim Integrated Products 功能描述:ADC SGL SAR 100KSPS 8BIT SERL 8PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC 8BIT ADC SERIAL LP 8SOT 制造商:Maxim Integrated Products 功能描述:IC, 8BIT ADC, SERIAL, LP, 8SOT |
| MAX1115EKA+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Single-Supply Low Power Serial 8-Bit 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 |
| MAX1115EKA-T | 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 |
| MAX1115EKA-TW | 制造商:Maxim Integrated Products 功能描述:8 PINS SOT PKG - Tape and Reel |
| MAX1115EKA-W | 制造商:Maxim Integrated Products 功能描述:8 PIN COUNT SOT PACKAGE TYPE - Bulk |
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