MAX148ACPP

更新时间： 2024-01-08 18:38:55

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
24页	221K
描述
+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs

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技术参数
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MAX148ACPP 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	DIP	包装说明：	CERDIP-20
针数：	20	Reach Compliance Code：	compliant
ECCN代码：	3A001.A.2.C	HTS代码：	8542.39.00.01
风险等级：	5.24	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-GDIP-T20
最大线性误差 (EL)：	0.0977%	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：	125 °C
最低工作温度：	-55 °C	输出位码：	BINARY, 2'S COMPLEMENT BINARY
输出格式：	SERIAL	封装主体材料：	CERAMIC, GLASS-SEALED
封装代码：	DIP	封装形状：	RECTANGULAR
封装形式：	IN-LINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	采样速率：	0.133 MHz
采样并保持/跟踪并保持：	TRACK	座面最大高度：	5.08 mm
标称供电电压：	3 V	表面贴装：	NO
温度等级：	MILITARY	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

MAX148ACPP 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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MAX148ACPP 替代型号

型号	品牌	替代类型	描述	数据表
MAX148AEPP+	MAXIM	完全替代	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDIP20, LEA
MAX148ACPP+	MAXIM	完全替代	2.7V to 5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs

与MAX148ACPP相关器件

型号	品牌	获取价格	描述	数据表
MAX148ACPP+	MAXIM	获取价格	2.7V to 5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX148AEAP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX148AEAP+	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, LEA
MAX148AEAP+T	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, 0.2
MAX148AEAP-T	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, SSO
MAX148AEPP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX148AEPP+	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDIP20, LEA
MAX148AMJP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX148BCAP	MAXIM	获取价格	+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs
MAX148BCAP+	MAXIM	获取价格	2.7V to 5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs

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