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参数资料
| 型号： | MAX1246BEPE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | +2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16 |
| 中文描述： | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP16 |
| 封装： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件页数： | 12/24页 |
| 文件大小： | 223K |
| 代理商： | MAX1246BEPE |
M
+2.7V, Low-Power, 4-Channel,
S erial 12-Bit ADCs in QS OP-16
12
______________________________________________________________________________________
Internal Clock
In internal clock mode, the MAX1246/MAX1247 generate
their own conversion clocks internally. This frees the μP
from the burden of running the SAR conversion clock
and allows the conversion results to be read back at the
processor’s convenience, at any clock rate from 0MHz
to 2MHz. SSTRB goes low at the start of the conversion
and then goes high when the conversion is complete.
SSTRB is low for a maximum of 7.5μs (
SHDN
= FLOAT),
during which time SCLK should remain low for best
noise performance.
An internal register stores data when the conversion is
in progress. SCLK clocks the data out of this register at
any time after the conversion is complete. After SSTRB
goes high, the next falling clock edge produces the
MSB of the conversion at DOUT, followed by the
remaining bits in MSB-first format (Figure 8).
CS
does
not need to be held low once a conversion is started.
Pulling
CS
high prevents data from being clocked into
the MAX1246/MAX1247 and three-states DOUT, but it
does not adversely affect an internal clock mode
CS
SCLK
DIN
DOUT
t
CSH
t
CSS
t
CL
t
DS
t
DH
t
DV
t
CH
t
DO
t
TR
t
CSH
Figure 6. Detailed Serial-Interface Timing
SSTRB
CS
SCLK
DIN
DOUT
1
4
8
12
16
20
24
START
SEL2 SEL1 SEL0
BIP
SGL/
DIF
PD1
PD0
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
ACQUISITION
1.5
μ
s
(f
SCLK
= 2MHz)
IDLE
FILLED WITH
ZEROS
IDLE
CONVERSION
t
ACQ
A/D STATE
RB1
RB2
RB3
Figure 5. 24-Clock External Clock Mode Conversion Timing (Microwire and SPI Compatible, QSPI Compatible with f
SCLK
≤
2MHz)
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1246BMJE | CAP .12UF 50V PPS FILM 2416 2% |
| MAX1247ACEE | +2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16 |
| MAX1247ACPE | CAP .015UF 50V PPS FILM 1210 2% |
| MAX1247AEPE | +2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16 |
| MAX1247AMJE | CAP .015UF 50V PPS FILM 1210 5% |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1246BEPE+ | 功能描述:模数转换器 - ADC 12-Bit 4Ch 133ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1246BMJE | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1246EVKIT | 功能描述:数据转换 IC 开发工具 MAX1246 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1246EVL11-QSOP | 功能描述:数据转换 IC 开发工具 MAX1246 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1247ACEE | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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