參數(shù)資料
型號: HI7190IBZ-T
廠商: Intersil
文件頁數(shù): 1/25頁
文件大?。?/td> 0K
描述: IC ADC 24BIT PROGBL SER 20-SOIC
產(chǎn)品培訓模塊: Solutions for Industrial Control Applications
標準包裝: 1,000
位數(shù): 24
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 32.5mW
電壓電源: 模擬和數(shù)字,雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應商設(shè)備封裝: 20-SOIC W
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,單極;1 個差分,雙極
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
VRLO
AVSS
VRHI
VCM
MODE
RESET
OSC1
OSC2
SYNC
DVDD
AGND
AVDD
VINHI
VINLO
Data Sheet
June 27, 2006
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