|
|
PDF ISO806 Data sheet ( Hoja de datos )
| Número de pieza | ISO806 | |
| Descripción | Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ISO806 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
®
ISO806
ISO806
Isolated 12-Bit Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 1500Vrms ISOLATION CONTINUOUS
q 25µS CONVERSION TIME
q 12-BIT SERIAL OUTPUT
q SINGLE +5V SUPPLY
q 28-PIN 0.6" PLASTIC DIP
APPLICATIONS
q INDUSTRIAL PROCESS CONTROL
q PC-BASED DATA ACQUISITION TEST
EQUIPMENT
DESCRIPTION
The ISO806 is a low-power isolated sampling ADC
using state-of-the-art CMOS structures and high volt-
age capacitors. The ISO806 contains a complete 12-bit
capacitor based SAR, ADC with S/H, clock, refer-
ence, µP interface, serial out and galvanic isolation.
Laser-trimmed scaling resistors provide standard
industrial input ranges including ±10V, ±5V, 0-5V,
0-4V. They are available in 28-pin 0.6" wide plastic
DIP and are specified over the industrial temperature
range of –40°C to +85°C.
www.DataSheet.net/
Isolation
Barrier
R1IN
40kΩ
R2IN
CAP
10kΩ 40kΩ
REF
Successive Approximation Register and Control Logic
Clock
Internal
+2.5V Ref
6kΩ
Serial
Data
Out
SB/BTC
R/C
BUSY
Data Clock
Serial Data
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1996 Burr-Brown Corporation
PDS-1316B
Printed in U.S.A. August, 1997
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
TYPICAL PERFORMANCE CURVES
At TA = +25°C, fS = 40kHz, VDIG = VANA = +5V, using internal reference and fixed resistors shown in Figure 3b, unless otherwise specified.
0
–20
–40
–60
–80
–100
–120
0
FREQUENCY SPECTRUM
(8192 Point FFT; fIN = 1kHz, 0dB)
FREQUENCY SPECTRUM
(8192 Point FFT; fIN = 15kHz, 0dB)
0
–20
–40
–60
–80
–100
5 10 15
Frequency (kHz)
–120
20 0
5 10 15
Frequency (kHz)
20
90
80
70
60
50
40
30
20
10
100
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (fIN = 0dB)
1k 10k 100k
Input Signal Frequency (Hz)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY AND INPUT AMPLITUDE
90
80 0dB
70
60 –20dB
50
40
www.DataSheet.net/
30
20 –60dB
10
0
1M 0 2 4 6 8 10 12 14 16 18 20
Input Signal Frequency (kHz)
SIGNAL-TO-(NOISE + DISTORTION) vs TEMPERATURE
74.0
(fIN = 1kHz, 0dB; fS = 10kHz to 40kHz)
73.9
30kHz
20kHz
10kHz
73.8
73.7
40kHz
73.6
–75 –50 –25
0 25 50 75 100 125 150
Temperature (°C)
110
105
100
95
90
85
80
75
70
65
60
–75
A.C. PARAMETERS vs TEMPERATURE
(fIN = 1kHz, 0dB)
SFDR
SNR and SINAD
THD
–50 –25
0 25 50 75 100 125
Temperature (°C)
–60
–65
–70
–75
–80
–85
–90
–95
–100
–105
–110
150
®
5 ISO806
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
SIGNAL CONDITIONING
The FET switches used for the sample hold on many CMOS
A/D converters release a significant amount of charge injec-
tion which can cause the driving op amp to oscillate. The
amount of charge injection due to the sampling FET switch
on the ISO806 is approximately 5-10% of the amount on
similar ADCs with the charge redistribution DAC (CDAC)
architecture. There is also a resistive front end which attenu-
ates any charge which is released. The end result is a
minimal requirement for the drive capability on the signal
conditioning preceding the A/D. Any op amp sufficient for
the signal in an application will be sufficient to drive the
ISO806.
The resistive front end of the ISO806 also provides a
guaranteed ±25V overvoltage protection. In most cases, this
eliminates the need for external over voltage protection
circuitry.
(a) Bipolar
Digital Output
+Full Scale
(b) Unipolar
Digital Output
+Full Scale
Analog Input
–Full Scale
–Full Scale
www.DataSheet.net/
Typical Transfer Functions
With External Resistors
Typical Transfer Functions
Without External Resistors
FIGURE 4. Typical Transfer Functions With and Without External Resistors.
Analog Input
11
ISO806
®
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ISO806.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ISO806 | Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER | Burr-Brown |
| ISO807 | Isolated 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER | Burr-Brown |
| ISO808 | Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER | Burr-Brown |
| ISO809 | Isolated 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER |  Burr-Brown Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |