參數(shù)資料
型號： MAX145BEUA+T
廠商： Maxim Integrated Products
文件頁數(shù)： 1/16頁
文件大小： 0K
描述： IC ADC 12BIT 108KSPS 8-UMAX
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
位數(shù)： 12
采樣率（每秒）： 108k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉換器數(shù)目： 1
功率耗散（最大）： 330mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
供應商設備封裝： 8-uMAX
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 1 個偽差分，單極
General Description
The MAX144/MAX145 low-power, 12-bit analog-to-
digital converters (ADCs) are available in 8-pin MAX
and DIP packages. Both devices operate with a single
+2.7V to +5.25V supply and feature a 7.4s succes-
sive-approximation ADC, automatic power-down, fast
wake-up (2.5s), an on-chip clock, and a high-speed,
3-wire serial interface.
Power consumption is only 3.2mW (VDD = +3.6V) at the
maximum sampling rate of 108ksps. At slower through-
put rates, the automatic shutdown (0.2A) further
reduces power consumption.
The MAX144 provides 2-channel, single-ended opera-
tion and accepts input signals from 0 to VREF. The
MAX145 accepts pseudo-differential inputs ranging
from 0 to VREF. An external clock accesses data-
through the 3-wire serial interface, which is SPI,
QSPI, and MICROWIRE-compatible.
Excellent dynamic performance and low power, com-
bined with ease of use and small package size, make
these converters ideal for battery-powered and data-
acquisition applications, or for other circuits with
demanding power-consumption and space require-
ments. For pin-compatible 10-bit ADCs, see the
MAX157 and MAX159 data sheets.
Applications
Features
Single-Supply Operation (+2.7V to +5.25V)
Two Single-Ended Channels (MAX144) One
Pseudo-Differential Channel (MAX145)
Low Power
0.9mA (108ksps, +3V Supply)
100A (10ksps, +3V Supply)
10A (1ksps, +3V Supply)
0.2A (Power-Down Mode)
Internal Track/Hold
108ksps Sampling Rate
SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial
Interface
Space-Saving 8-Pin MAX Package
Pin-Compatible 10-Bit Versions Available
MAX144/MAX145
+2.7V, Low-Power, 2-Channel, 108ksps,
Serial 12-Bit ADCs in 8-Pin MAX
________________________________________________________________ Maxim Integrated Products 1
PART
TEMP
RANGE
PIN-
PACKAGE
INL
(LSB)
PKG
CODE
MAX144ACUA
0°C to
+70°C
8 MAX
±0.5
U8-1
MAX144BCUA
0°C to
+70°C
8 MAX
±1
U8-1
MAX144ACPA
0°C to
+70°C
8 Plastic DIP
±0.5
P8-1
MAX144BCPA
0°C to
+70°C
8 Plastic DIP
±1
P8-1
MAX144BC/D
0°C to
+70°C
Dice*
±1
—
MAX144AEUA
-40°C to
+85°C
8 MAX
±0.5
U8-1
MAX144BEUA
-40°C to
+85°C
8 MAX
±1
U8-1
MAX144AEPA
-40°C to
+85°C
8 Plastic DIP
±0.5
P8-1
MAX144BEPA
-40°C to
+85°C
8 Plastic DIP
±1
P8-1
MAX144AMJA
-55°C to
+125°C
8 CERDIP**
±0.5
J8-2
MAX144BMJA
-55°C to
+125°C
8 CERDIP**
±1
J8-2
Ordering Information
CS/SHDN
REF
GND
1
2
8
7
SCLK
DOUT
( ) ARE FOR MAX145 ONLY
CH0 (CH+)
CH1 (CH-)
VDD
MAX/DIP
TOP VIEW
3
4
6
5
MAX144
MAX145
Pin Configuration
19-1387; Rev 2; 10/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
*Dice are specified at TA = +25°C, DC parameters only.
**Contact factory for availability.
Ordering Information continued at end of data sheet.
Battery-Powered Systems
Portable Data Logging
Isolated Data Acquisition
Process-Control Monitoring
Instrumentation
Test Equipment
Medical Instruments
System Supervision
MAX is a registered trademark of Maxim Integrated Products, Inc.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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