收藏本站
________________General Description
The MAX1245 12-bit data-acquisition system combines
an 8-channel multiplexer, high-bandwidth track/hold, and
serial interface with high conversion speed and ultra-low
power consumption. It operates from a single +2.375V to
+3.3V supply, and its analog inputs are software config-
urable for unipolar/bipolar and single-ended/differential
operation.
The 4-wire serial interface directly connects to SPI,
QSPI, and MICROWIRE devices without external
logic. A serial strobe output allows direct connection to
TMS320-family digital signal processors. The MAX1245
works with an external reference, and uses either the
internal clock or an external serial-interface clock to
perform successive-approximation analog-to-digital
conversions.
This device provides a hard-wired SHDN pin and a
software-selectable power-down, and can be pro-
grammed to automatically shut down at the end of a
conversion. Accessing the serial interface powers up
the MAX1245, and the quick turn-on time allows it to be
shut down between conversions. This technique can
cut supply current to under 10A at reduced sampling
rates.
The MAX1245 is available in a 20-pin DIP package and
an SSOP that occupies 30% less area than an 8-pin DIP.
For supply voltages from +2.7V to +5.25V, use the pin-
compatible MAX147.
________________________Applications
Portable Data Logging
Medical Instruments
Battery-Powered Instruments
Data Acquisition
____________________________Features
o Single +2.375V to +3.3V Operation
o 8-Channel Single-Ended or 4-Channel
Differential Analog Inputs
o Low Power: 0.8mA (100ksps)
10A (1ksps)
1A (power-down mode)
o Internal Track/Hold, 100kHz Sampling Rate
o SPI/QSPI/MICROWIRE/TMS320-Compatible
4-Wire Serial Interface
o Software-Configurable Unipolar or Bipolar Inputs
o 20-Pin DIP/SSOP Packages
MAX1245
+2.375V, Low-Power, 8-Channel,
Serial 12-Bit ADC
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
TOP VIEW
DIP/SSOP
VDD
SCLK
CS
DIN
SSTRB
DOUT
DGND
AGND
VDD
VREF
SHDN
COM
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
MAX1245
___________________Pin Configuration
VDD
I/O
SCK (SK)
MOSI (SO)
MISO (SI)
VSS
SHDN
SSTRB
DOUT
DIN
SCLK
CS
COM
AGND
DGND
VDD
CH7
0.1
F
0.1
F
CH0
0V to
+2.048V
ANALOG
INPUTS
MAX1245
CPU
+2.5V
VREF
+2.048V
___________Typical Operating Circuit
19-1066; Rev 1; 11/09
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
________________Ordering Information
*
Contact factory for availability of alternate surface-mount packages.
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
PART*
TEMP RANGE
PIN-PACKAGE
INL
(LSB)
MAX1245ACPP
0
°C to +70°C
20 Plastic DIP
±1/2
MAX1245BCPP
0
°C to +70°C
20 Plastic DIP
±1
MAX1245ACAP
0
°C to +70°C
20 SSOP
±1/2
MAX1245BCAP
0
°C to +70°C
20 SSOP
±1
MAX1245AEPP
-40
°C to +85°C 20 Plastic DIP
±1/2
MAX1245BEPP
-40
°C to +85°C 20 Plastic DIP
±1
MAX1245AEAP
-40
°C to +85°C 20 SSOP
±1/2
MAX1245BEAP
-40
°C to +85°C 20 SSOP
±1
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MAX1249AEPE+ IC ADC 10BIT SERIAL 16-DIP
MAX1279AETC+ IC ADC 12BIT 1.5MSPS 12-TQFN
MAX1285BESA+T IC ADC 12BIT 300KSPS 8-SOIC
MAX1302BEUG+ IC ADC 16BIT SRL 115KSPS 24TSSOP
MAX1303BEUP+ IC ADC 16BIT MULT RANGE 20TSSOP
MAX1308ECM+T IC ADC 12BIT 8CH 4MSPS 48LQFP
MAX1320ECM+T IC ADC 14BIT 8CH 2MSPS 48LQFP
MAX132EWG+T IC ADC 18BIT SERIAL 24-SOIC
相关代理商/技术参数
MAX1245BCPP+ 功能描述:模数转换器 - ADC 10-Bit 8Ch 100ksps 3.3V 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
MAX1245BEAP 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
MAX1245BEAP+ 功能描述:模数转换器 - ADC 10-Bit 8Ch 100ksps 3.3V 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
MAX1245BEAP+T 功能描述:模数转换器 - ADC 10-Bit 8Ch 100ksps 3.3V 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
MAX1245BEAP-T 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
MAX1245BEPP 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
MAX1245BEPP+ 功能描述:模数转换器 - ADC 10-Bit 8Ch 100ksps 3.3V 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
MAX1245BMJP 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