LM12458CIVX

更新时间： 2024-11-23 04:20:19

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
36页	1187K
描述
12-Bit + Sign Data Acquisition System with Self-Calibration

阅读下载

中文翻译

获取价格

技术参数
数据手册
替代型号

如果您发现信息不准确，欢迎纠错

LM12458CIVX 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	PLASTIC, LCC-44	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.01	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	S-PQCC-J44	JESD-609代码：	e0
长度：	16.51 mm	湿度敏感等级：	2A
功能数量：	1	端子数量：	44
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCJ
封装形状：	SQUARE	封装形式：	CHIP CARRIER
峰值回流温度（摄氏度）：	220	认证状态：	Not Qualified
座面最大高度：	4.57 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	3 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn85Pb15)	端子形式：	J BEND
端子节距：	1.27 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	16.51 mm
Base Number Matches：	1

LM12458CIVX 数据手册

February 2006

LM12454/LM12458/LM12H458

12-Bit + Sign Data Acquisition System with

Self-Calibration

General Description

Key Specifications

The LM12458, and LM12H458 are highly integrated Data

Acquisition Systems. Operating on just 5V, they combine a

fully-differential self-calibrating (correcting linearity and zero

errors) 13-bit (12-bit + sign) analog-to-digital converter

(ADC) and sample-and-hold (S/H) with extensive analog

functions and digital functionality. Up to 32 consecutive con-

versions, using two’s complement format, can be stored in

an internal 32-word (16-bit wide) FIFO data buffer. An inter-

nal 8-word RAM can store the conversion sequence for up to

eight acquisitions through the LM12(H)458’s eight-input mul-

tiplexer. The obsolete LM12454 has a four-channel multi-

plexer, a differential multiplexer output, and a differential S/H

input. The LM12(H)458 can also operate with 8-bit + sign

resolution and in a supervisory “watchdog” mode that com-

pares an input signal against two programmable limits.

(f_CLK= 5 MHz; 8 MHz, H)

Resolution

12-bit + sign or 8-bit + sign

8.8 µs, 5.5 µs (H) (max)

4.2 µs, 2.6 µs (H) (max)

88k samples/s (min),

140k samples/s (H) (min)

2.2 µs (max),

13-bit conversion time

9-bit conversion time

13-bit Through-put rate

Comparison time

(“watchdog” mode)

ILE

1.4 µs (H) (max)

1 LSB (max)

V_INrange

GND to V_A

Power Consumption

Stand-by mode

Single supply

30 mW, 34 mW (H) (max)

50 µW (typ)

Programmable acquisition times and conversion rates are

possible through the use of internal clock-driven timers. The

reference voltage input can be externally generated for ab-

solute or ratiometric operation or can be derived using the

internal 2.5V bandgap reference.

3V to 5.5V

Features

n Three operating modes: 12-bit + sign, 8-bit + sign, and

“watchdog”

All registers, RAM, and FIFO are directly addressable

through the high speed microprocessor interface to either an

8-bit or 16-bit data bus. The LM12(H)458 includes a direct

memory access (DMA) interface for high-speed conversion

data transfer.

n Single-ended or differential inputs

n Built-in Sample-and-Hold and 2.5V bandgap reference

n Instruction RAM and event sequencer

n 8-channel multiplexer

Additional applications information can be found in applica-

tions notes AN-906, AN-947 and AN-949.

n 32-word conversion FIFO

n Programmable acquisition times and conversion rates

n Self-calibration and diagnostic mode

n 8- or 16-bit wide data bus microprocessor or DSP

interface

Applications

n Data Logging

n Instrumentation

n Process Control

n Energy Management

n Inertial Guidance

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

AT^®is a registered trademark of International Business Machines Corporation.

DS011264

www.national.com

12 3 4 5 6 7...36

中文翻译

下载PDF

LM12458CIVX 替代型号

型号	品牌	替代类型	描述	数据表
LM12458CIV/NOPB	NSC	功能相似	IC SPECIALTY ANALOG CIRCUIT, PQCC44, PLASTIC, LCC-44, Analog IC:Other
LM12458CIV	NSC	功能相似	12-Bit Sign Data Acquisition System with Self-Calibration
LM12H458CIV	NSC	功能相似	12-Bit Sign Data Acquisition System with Self-Calibration

与LM12458CIVX相关器件

型号	品牌	获取价格	描述	数据表
LM12458CIVX/NOPB	TI	获取价格	具有自校准功能的 88kSPS、12 位 + 符号数据采集系统 \| FN \| 44 \| -
LM12458CMEL/883	ETC	获取价格	Single-Ended Data Acquisition System
LM12458MEL/883	ETC	获取价格	Single-Ended Data Acquisition System
LM12458MW/883	ETC	获取价格	Single-Ended Data Acquisition System
LM1246	NSC	获取价格	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character
LM1246AAA	NSC	获取价格	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character
LM1246AAA/NA	NSC	获取价格	IC 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24, PLASTIC, DIP-24, Audio/Video Amplifier
LM1246NA	NSC	获取价格	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character
LM1247	NSC	获取价格	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character
LM1247AAG/NA	NSC	获取价格	150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character

与LM12458CIVX相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

35
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

26
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

54
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

52

产品中心

服务支持

精选活动

关于我们

帮助中心

LM12458CIVX

LM12458CIVX 技术参数

LM12458CIVX 数据手册

LM12458CIVX 替代型号

与LM12458CIVX相关器件

与LM12458CIVX相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM12458CIVX

LM12458CIVX 技术参数

LM12458CIVX 数据手册

LM12458CIVX 替代型号

与LM12458CIVX相关器件

与LM12458CIVX相关文章

您还可以找

您在本页遇到什么问题？