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參數(shù)資料
| 型號： | HI7191IB |
| 廠商： | INTERSIL CORP |
| 元件分類： | ADC |
| 英文描述： | 24-Bit, High Precision, Sigma Delta A/D Converter |
| 中文描述： | 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | PLASTIC, MS-013AC, SOIC-20 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 187K |
| 代理商： | HI7191IB |
1897
March 1998
HI7191
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 “Intersil 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 Intersil HI7191 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 HI7191 and HI7191 are functionally the same device so all
discussion will refer to the HI7191 for simplicity.
The HI7191 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
HI7191
(PDIP, SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
HI7191IP
-40 to 85
20 Ld PDIP
E20.3
HI7191IB
-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
File Number
4138.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
Intersil Corporation 1999
相關(guān)PDF資料 |
PDF描述 |
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| HI7191 | 24-Bit, High Precision, Sigma Delta A/D Converter |
| HI7191IP | 24-Bit, High Precision, Sigma Delta A/D Converter |
| HI8182C | Telecommunication IC |
| HI8182CM | Telecommunication IC |
| HI8182R | Telecommunication IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HI7191IBZ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ADC 24BIT SIGMADELTA 20 IND RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| HI7191IBZ-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ADC 24BIT SIGMADELTA 20 IND RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| HI7191IP | 功能描述:IC ADC 24BIT PROGBL SER 20-PDIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| HI7191IPZ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC W/ANNEAL ADC 24BIT SIGMADELTA 20PDIP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| HI73127 | 制造商:Hanna 功能描述:Bulk |
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