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參數(shù)資料
| 型號(hào)： | MAX1240 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | +2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO |
| 中文描述： | +2.7V、低功耗、12位串行ADC，8引腳SO封裝 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 280K |
| 代理商： | MAX1240 |
__________________General Desc ription
The MAX1240/MAX1241 are low-power, 12-bit analog-
to-digital converters (ADCs) available in 8-pin pack-
ages. The MAX1240 operates with a single +2.7V to
+3.6V supply, and the MAX1241 operates with a single
+2.7V to +5.25V supply. Both devices feature a 7.5μs
successive-approximation ADC, a fast track/hold
(1.5μs), an on-chip clock, and a high-speed, 3-wire ser-
ial interface.
Power consumption is only 37mW (V
DD
= 3V) at the
73ksps maximum sampling speed. A 2μA shutdown
mode reduces power at slower throughput rates.
The MAX1240 has an internal 2.5V reference, while the
MAX1241 requires an external reference. The MAX1241
accepts signals from 0V to V
REF
, and the reference
input range includes the positive supply rail. An exter-
nal clock accesses data from the 3-wire interface,
which connects directly to standard microcontroller I/O
ports. The interface is compatible with SPI, QSPI,
and MICROWIRE.
Excellent AC characteristics and very low power com-
bined with ease of use and small package size make
these converters ideal for remote-sensor and data-
acquisition applications, or for other circuits with
demanding power consumption and space require-
ments. The MAX1240/MAX1241 are available in 8-pin
DIP and SO packages.
Applic ations
Battery-Powered Systems
Portable Data Logging
Isolated Data Acquisition
Process Control
Instrumentation
________________________________Features
o
Single-Supply Operation:
+2.7V to +3.6V (MAX1240)
+2.7V to +5.25V (MAX1241)
o
12-Bit Resolution
o
Internal 2.5V Reference (MAX1240)
o
Small Footprint: 8-Pin DIP/SO Packages
o
Low Power: 3.7μW (73ksps, MAX1240)
3mW (73ksps, MAX1241)
66μW (1ksps, MAX1241)
5μW (power-down mode)
o
Internal Track/Hold
o
SPI/QSPI/MICROWIRE 3-Wire Serial Interface
o
Internal Clock
M
+2.7V, Low-Power,
12-Bit S erial ADCs in 8-Pin S O
________________________________________________________________ Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
19-1155; Rev 2; 11/98
EVALUATION KIT
AVAILABLE
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
Ordering Information continued at end of data sheet.
*Dice are specified at T
A
= +25°C, DC parameters only.
TOP VIEW
1
2
3
4
8
7
6
5
SCLK
CS
DOUT
GND
REF
SHDN
AIN
V
DD
DIP/SO
MAX1240
MAX1241
Pin Configuration
PART
MAX1240
ACPA
MAX1240BCPA
MAX1240CCPA
0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-
PACKAGE
8 Plastic DIP
8 Plastic DIP
8 Plastic DIP
INL
(LSB)
±
1
/
2
±1
±1
MAX1240ACSA
MAX1240BCSA
MAX1240CCSA
0°C to +70°C
0°C to +70°C
0°C to +70°C
8 SO
8 SO
8 SO
±
1
/
2
±1
±1
MAX1240BC/D
0°C to +70°C
Dice*
±1
Ordering Information
Func tional Diagram
7
8
AIN
T/H
DOUT
6
1
OUTPUT
SHIFT
REGISTER
CONTROL
LOGIC
INT
CLOCK
12-BIT
SAR
2
3
5
GND
REF
4
SHDN
2.5V REFERENCE
(MAX1240 ONLY)
SCLK
CS
MAX1240
MAX1241
V
DD
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| MAX1240ACPA | +2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1240ACPA | 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 |
| MAX1240ACPA+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 73ksps 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 |
| MAX1240ACSA | 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 |
| MAX1240ACSA+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 73ksps 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 |
| MAX1240ACSA+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 73ksps 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 |
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