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参数资料
| 型号： | HI7190IP |
| 厂商： | INTERSIL CORP |
| 元件分类： | ADC |
| 英文描述： | null24-Bit, High Precision, Sigma Delta A/D Converter |
| 中文描述： | 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDIP20 |
| 封装： | PLASTIC, MS-001AD, DIP-20 |
| 文件页数： | 1/24页 |
| 文件大小： | 187K |
| 代理商： | HI7190IP |
1871
Semiconductor
March 1998
HI7190
24-Bit, High Precision,
Sigma Delta A/D Converter
Features
22-Bit Resolution with No Missing Code
0.0007% Integral Non-Linearity (Typ)
20mV to
±
2.5V Full Scale Input Ranges
Internal PGIA with Gains of 1 to 128
Serial Data I/O Interface, SPI Compatible
Differential Analog and Reference Inputs
Internal or System Calibration
-120dB Rejection of 60/50Hz Line Noise
Settling Time of 4 Conversions (Max) for a Step Input
Applications
Process Control and Measurement
Industrial Weight Scales
Part Counting Scales
Laboratory Instrumentation
Seismic Monitoring
Magnetic Field Monitoring
Additional Reference Literature
- TB348 “HI7190/1 Negative Full Scale Error vs
Conversion Frequency”
- AN9504 “A Brief Intro to Sigma Delta Conversion”
- TB329 “Harris Sigma Delta Calibration Technique”
- AN9505 “Using the HI7190 Evaluation Kit”
- TB331 “Using the HI7190 Serial Interface”
- AN9527 “Interfacing HI7190 to a Microcontroller”
- AN9532 “Using HI7190 in a Multiplexed System”
- AN9601 “Using HI7190 with a Single +5V Supply”
Description
The Harris HI7190 is a monolithic instrumentation, sigma delta
A/D converter which operates from
±
5V supplies. Both the sig-
nal and reference inputs are fully differential for maximum flexi-
bility and performance. An internal Programmable Gain
Instrumentation Amplifier (PGIA) provides input gains from 1 to
128 eliminating the need for external pre-amplifiers. The on-
demand converter auto-calibrate function is capable of remov-
ing offset and gain errors existing in external and internal cir-
cuitry. The on-board user programmable digital filter provides
over -120dB of 60/50Hz noise rejection and allows fine tuning
of resolution and conversion speed over a wide dynamic range.
The HI7190 and HI7191 are functionally the same device so all
discussion will refer to the HI7190 for simplicity.
The HI7190 contains a serial I/O port and is compatible with
most synchronous transfer formats including both the Motor-
ola 6805/11 series SPI and Intel 8051 series SSR protocols.
A sophisticated set of commands gives the user control over
calibration, PGIA gain, device selection, standby mode, and
several other features. The On-chip Calibration Registers
allow the user to read and write calibration data.
Pinout
HI7190
(PDIP, SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
HI7190IP
-40 to 85
20 Ld PDIP
E20.3
HI7190IB
-40 to 85
20 Ld SOIC
M20.3
HI7190EVAL
Evaluation Kit
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
SCLK
SDO
SDIO
CS
DRDY
DGND
V
RLO
V
RHI
V
CM
AV
SS
MODE
RESET
OSC
1
OSC
2
DV
DD
AGND
SYNC
AV
DD
V
INHI
V
INLO
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Harris Corporation 1998
File Number
3612.5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HI7190IPZ | 功能描述:模数转换器 - ADC W/ANNEAL ADC 24BIT 1 0HZ SIGMADELTA RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| HI7191 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:24-Bit, High Precision, Sigma Delta A/D Converter |
| HI7191_06 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:24-Bit, High Precision, Sigma Delta A/D Converter |
| HI7191IB | 功能描述:IC ADC 24BIT PROGBL SER 20-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率（每秒）:3M 数据接口:- 转换器数目:- 功率耗散（最大）:- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:- |
| HI7191IBZ | 功能描述:模数转换器 - ADC ADC 24BIT SIGMADELTA 20 IND RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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