MAX149ACPP+

更新时间： 2024-02-05 14:49:08

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
24页	221K
描述
ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDIP20, LEAD FREE, PLASTIC, DIP-20

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技术参数
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替代型号

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MAX149ACPP+ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP, DIP20,.3	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	8.21
最大模拟输入电压：	1.25 V	最小模拟输入电压：	-1.25 V
最长转换时间：	65 µs	转换器类型：	ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码：	R-PDIP-T20	JESD-609代码：	e3
长度：	26.16 mm	最大线性误差 (EL)：	0.0488%
湿度敏感等级：	1	模拟输入通道数量：	8
位数：	10	功能数量：	1
端子数量：	20	最高工作温度：	70 °C
最低工作温度：		输出位码：	BINARY, 2'S COMPLEMENT BINARY
输出格式：	SERIAL	封装主体材料：	PLASTIC/EPOXY
封装代码：	DIP	封装等效代码：	DIP20,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	260	电源：	3/5 V
认证状态：	Not Qualified	采样速率：	0.133 MHz
采样并保持/跟踪并保持：	SAMPLE	座面最大高度：	4.572 mm
子类别：	Analog to Digital Converters	标称供电电压：	3 V
表面贴装：	NO	技术：	CMOS
温度等级：	COMMERCIAL	端子面层：	TIN
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7.62 mm	Base Number Matches：	1

MAX149ACPP+ 数据手册

19-0464; Rev 2; 5/98

+2.7V to +5.25V, Lo w -P o w e r, 8 -Ch a n n e l,

S e ria l 1 0 -Bit ADCs

8/MAX149

Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

The MAX148/MAX149 10-bit data-acquisition systems

c omb ine a n 8-c ha nne l multip le xe r, hig h-b a nd wid th

track/hold, and serial interface with high conversion

speed and low power consumption. They operate from a

single +2.7V to +5.25V supply, and sample to 133ksps.

Both devices’ analog inputs are software configurable for

unipolar/bipolar and single-ended/differential operation.

♦ 8-Channel Single-Ended or 4-Channel

Differential Inputs

♦ Single-Supply Operation: +2.7V to +5.25V

♦ Internal 2.5V Reference (MAX149)

♦ Low Power: 1.2mA (133ksps, 3V supply)

54µA (1ksps, 3V supply)

The 4-wire serial interface connects directly to SPI™/

QSPI™ and MICROWIRE™ devices without external

logic. A serial-strobe output allows direct connection to

TMS320-family digital signal processors. The MAX148/

MAX149 use either the internal clock or an external serial-

interface clock to perform successive-approximation

analog-to-digital conversions.

1µA (power-down mode)

♦ SPI/QSPI/MICROWIRE/TMS320-Compatible

4-Wire Serial Interface

♦ Software-Configurable Unipolar or Bipolar Inputs

♦ 20-Pin DIP/SSOP Packages

The MAX149 has an internal 2.5V reference, while the

MAX148 requires an external reference. Both parts have

a re fe re nc e -b uffe r a mp lifie r with a ± 1.5% volta g e -

adjustment range.

Ord e rin g In fo rm a t io n

These devices provide a hard-wired SHDN pin and a

s oftwa re -s e le c ta b le p owe r-d own, a nd c a n b e p ro-

grammed to automatically shut down at the end of a con-

version. Accessing the serial interface automatically

powers up the MAX148/MAX149, and the quick turn-on

time allows them to be shut down between all conver-

sions. This technique can cut supply current to under

60µA at reduced sampling rates.

INL

(LSB)

PART^†

TEMP. RANGE PIN-PACKAGE

MAX148ACPP

MAX148BCPP

MAX148ACAP

MAX148BCAP

0°C to +70°C

20 Plastic DIP

20 SSOP

±1/2

±1

±1/2

±1

20 SSOP

Ordering Information continued at end of data sheet.

Contact factory for availability of alternate surface-mount

packages.

†

The MAX148/MAX149 are available in a 20-pin DIP and a

20-pin SSOP.

For 4-c ha nne l ve rs ions of the s e d e vic e s , s e e the

MAX1248/MAX1249 data sheet.

__________Typ ic a l Op e ra t in g Circ u it

________________________Ap p lic a t io n s

+3V

Portable Data Logging

Medical Instruments

Pen Digitizers

Data Acquisition

CH0

0.1µF

0V TO

+2.5V

ANALOG

INPUTS

DGND

Battery-Powered Instruments

Process Control

MAX149

CH7

AGND

COM

CPU

I/O

VREF

4.7µF

SCLK

SCK (SK)

MOSI (SO)

MISO (SI)

DIN

DOUT

REFADJ

0.01µF

SSTRB

SHDN

Pin Configuration appears at end of data sheet.

SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

12 3 4 5 6 7...24

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MAX149ACPP+ 替代型号

型号	品牌	替代类型	描述	数据表
MAX149ACPP	MAXIM	完全替代	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs

与MAX149ACPP+相关器件

型号	品牌	获取价格	描述	数据表
MAX149ACWP	MAXIM	获取价格	Converter IC
MAX149AEAP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX149AEAP+	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, LEA
MAX149AEAP-T	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, SSO
MAX149AEPP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX149AEPP+	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDIP20, LEA
MAX149AEWP	MAXIM	获取价格	Converter IC
MAX149AMJP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX149AMJP+	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CDIP20, CERDIP-20
MAX149BCAP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs

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