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參數資料
| 型號： | HI7190 |
| 廠商： | Intersil Corporation |
| 英文描述： | 24-Bit, High Precision, Sigma Delta A/D Converter(24位高精密∑-Δ A/D轉換器) |
| 中文描述： | 24位，精度高，Σ-ΔA / D轉換（24位高精密Σ-Δ的A / D轉換器） |
| 文件頁數： | 1/25頁 |
| 文件大小： | 472K |
| 代理商： | HI7190 |
1
FN3612.10
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003, 2005-2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
HI7190
24-Bit, High Precision, Sigma Delta A/D
Converter
The Intersil HI7190 is a monolithic instrumentation, sigma
delta A/D converter which operates from ±5V supplies. Both
the signal and reference inputs are fully differential for
maximum flexibility 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 removing offset and gain
errors existing in external and internal circuitry. 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, but the
HI7190 has tighter linearity specifications.
The HI7190 contains a serial I/O port and is compatible with
most synchronous transfer formats including both the
Motorola 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
20 LD SOIC, PDIP
TOP VIEW
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
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Process Control and Measurement
Industrial Weight Scales
Part Counting Scales
Laboratory Instrumentation
Seismic Monitoring
Magnetic Field Monitoring
Additional Reference Literature
- Technical Brief, TB348 “HI7190/1 Negative Full Scale
Error vs Conversion Frequency”
- Application Note, AN9504 “A Brief Intro to Sigma Delta
Conversion”
- Technical Brief, TB329 “Intersil Sigma Delta Calibration
Technique”
- Application Note, AN9505 “Using the HI7190 Evaluation
Kit”
- Technical Brief, TB331 “Using the HI7190 Serial
Interface”
- Application Note, AN9527 “Interfacing HI7190 to a
Microcontroller”
- Application Note, AN9532 “Using HI7190 in a
Multiplexed System”
- Application Note, AN9601 “Using HI7190 with a Single
+5V Supply”
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
IN
HI
V
IN
LO
Data Sheet
June 27, 2006
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相關代理商/技術參數 |
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| HI7190 WAF | 制造商:Harris Corporation 功能描述: |
| HI7190_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:24-Bit, High Precision, Sigma Delta A/D Converter |
| HI7190EVAL | 功能描述:EVALUATION PLATFORM HI7190 RoHS:否 類別:編程器，開發系統 >> 評估板 - 模數轉換器 (ADC) 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數量:1 位數:12 采樣率（每秒）:94.4k 數據接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| HI7190IB | 功能描述:IC ADC 24BIT PROGBL SER 20-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 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 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
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