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參數資料
| 型號： | MAX1112 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | +5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs |
| 中文描述： | +5V、低功耗、多通道、串行8位ADC |
| 文件頁數： | 1/20頁 |
| 文件大小： | 285K |
| 代理商： | MAX1112 |
General Desc ription
The MAX1112/MAX1113 are low-power, 8-bit, 8-chan-
nel analog-to-digital converters (ADCs) that feature an
internal track/hold, voltage reference, clock, and serial
interface. They operate from a single +4.5V to +5.5V
supply and consume only 135μA while sampling at
rates up to 50ksps. The MAX1112’s 8 analog inputs
and the MAX1113’s 4 analog inputs are software-con-
figurable, allowing unipolar/bipolar and single-
ended/differential operation.
Successive-approximation conversions are performed
using either the internal clock or an external serial-inter-
face clock. The full-scale analog input range is deter-
mined by the 4.096V internal reference, or by an
externally applied reference ranging from 1V to V
DD
.
The 4-wire serial interface is compatible with the SPI,
QSPI, and MICROWIRE serial-interface standards.
A serial-strobe output provides the end-of-conversion
signal for interrupt-driven processors.
The MAX1112/MAX1113 have a software-program-
mable, 2μA automatic power-down mode to minimize
power consumption. Using power-down, the supply
current is reduced to 13μA at 1ksps, and only 82μA at
10ksps. Power-down can also be controlled using the
SHDN
input pin. Accessing the serial interface automat-
ically powers up the device.
The MAX1112 is available in 20-pin SSOP and DIP
packages. The MAX1113 is available in small 16-pin
QSOP and DIP packages.
________________________Applic ations
Portable Data Logging
Hand-Held Measurement Devices
Medical Instruments
System Diagnostics
Solar-Powered Remote Systems
4–20mA-Powered Remote
Data-Acquisition Systems
____________________________Features
o
+4.5V to +5.5V Single Supply
o
Low Power: 135μA at 50ksps
13μA at 1ksps
o
8-Channel Single-Ended or 4-Channel Differential
Inputs (MAX1112)
o
4-Channel Single-Ended or 2-Channel Differential
Inputs (MAX1113)
o
Internal Track/Hold; 50kHz Sampling Rate
o
Internal 4.096V Reference
o
SPI/QSPI/MICROWIRE-Compatible Serial Interface
o
Software-Configurable Unipolar or Bipolar Inputs
o
Total Unadjusted Error: ±1LSB (max)
±0.3LSB (typ)
M
+5V, Low-Power, Multi-Channel,
S erial 8-Bit ADCs
________________________________________________________________ Maxim Integrated Products
1
INPUT
SHIFT
REGISTER
CONTROL
LOGIC
INT
CLOCK
OUTPUT
SHIFT
REGISTER
+4.096V
REFERENCE
T/H
ANALOG
INPUT
MUX
8-BIT
SAR ADC
IN
DOUT
SSTRB
V
DD
DGND
AGND
SCLK
DIN
CH0
CH1
CH2
CH3
CH4*
CH7*
CH6*
CH5*
COM
REFOUT
*MAX1112 ONLY
REFIN
OUT
REF
CLOCK
MAX1112
MAX1113
CS
SHDN
Func tional Diagram
19-1231; Rev 1; 10/98
EVALUATION KIT
AVAILABLE
PART
MAX1112
CPP
MAX1112CAP
MAX1112C/D
0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
20 Plastic DIP
20 SSOP
Dice*
Ordering Information
Ordering Information continued at end of data sheet.
*
Dice are specified at T
A
= +25°C, DC parameters only.
Pin Configurations appear at end of data sheet.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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.
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| MAX1112-MAX1113 | +5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs |
| MAX1112CPP | +5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs |
| MAX1112CAP | +5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs |
| MAX1112EAP | +5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX11120 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Msps, Low-Power, Serial 12-/10-/8-Bit, 4-/8-/16-Channel ADCs |
| MAX11120_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Msps, Low-Power, Serial 12-/10-/8-Bit,4-/8-/16-Channel ADCs |
| MAX11120_V2 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Msps, Low-Power, Serial 12-/10-/8-Bit, 4-/8-/16-Channel ADCs |
| MAX11120ATI | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Msps, Low-Power, Serial 12-/10-/8-Bit,4-/8-/16-Channel ADCs |
| MAX11120ATI+ | 功能描述:模數轉換器 - ADC 8Bit 4Ch 1Msps Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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