參數(shù)資料
型號(hào)： MAX1245BCPP
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/21頁(yè)
文件大小： 0K
描述： IC ADC SRL 12BIT 2.375V 20-DIP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 18
位數(shù)： 12
采樣率（每秒）： 100k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 2.4mW
電壓電源： 單電源
工作溫度： 0°C ~ 70°C
安裝類(lèi)型： 通孔
封裝/外殼： 20-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 20-PDIP
包裝： 管件
輸入數(shù)目和類(lèi)型： 8 個(gè)單端，單極；8 個(gè)單端，雙極；4 個(gè)差分，單極；4 個(gè)差分，雙極
________________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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1245BCPP+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 8Ch 100ksps 3.3V 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1245BEAP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1245BEAP+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 8Ch 100ksps 3.3V 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1245BEAP+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 8Ch 100ksps 3.3V 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1245BEAP-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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
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