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ISO808P Datasheet(PDF) 4 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
Part # ISO808P
Description  Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
PDF  7 Pages
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Manufacturer  BURR-BROWN [Burr-Brown (TI)]
Direct Link  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

ISO808P Datasheet(HTML) 4 Page - Burr-Brown (TI)

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4
®
ISO808
SYMBOL
DESCRIPTION
MIN
TYP MAX UNITS
t1
Convert Pulse Width
40
4500
ns
t2
BUSY Delay
120
ns
t3
BUSY LOW
8
µs
t4
BUSY Delay after
220
ns
End of Conversion
t5
Aperture Delay
40
ns
t6
Conversion Time
5.7
8
µs
t7
Acquisition Time
2
µs
t6 + t7
Throughput Time
9
10
µs
t8
R/C LOW to DATACLK Delay
450
ns
t9
DATACLK Period
440
ns
t10
Data Valid to DATACLK
20
75
ns
HIGH Delay
t11
Data Valid after
100
125
ns
DATACLK LOW Delay
DIGITAL
PIN #
NAME
I/O
DESCRIPTION
1
RC
I
Read/Convert. With BUSY high, a falling edge on R/C initiates a new conversion.
2
BUSY
O
At the start of conversion BUSY goes LOW and stays LOW until conversion is complete.
3
+5VDIG2
Isolated Digital Supply Volts.
10
+5VDIG1
Digital Supply Volts.
11
+5VANA
Analog Supply Volts.
12
R1IN
Analog Input.
13
R2N
Analog Input.
14
R3N
Analog Input.
15
CAP
Reference Buffer Output. 2.2
µF tantalum capacitor to ground.
16
REF
Reference Input/Output. 2.2
µF tantalum capacitor to ground.
17
AGND
Analog Ground.
18
SB/BTC
I
Selects Straight Binary or Binary Two’s Complement for output data format.
19
DGND1
Digital Ground.
26
DGND2
Isolated Ground.
27
DATACLK
O
Data Clock Output.
28
SDATA
O
Serial Output Synchronized to DATACLK.
TABLE I. Pin Assignments.
PIN CONFIGURATION
ANALOG
CONNECT R1IN
CONNECT R2IN
INPUT
VIA 200
Ω
VIA 100
Ω
CONNECT R3IN
RANGE
TO
TO
TO
IMPEDANCE
±10V
VIN
AGND
CAP
22.9k
Ω
±5V
AGND
VIN
CAP
13.3k
Ω
±3.33
VIN
VIN
CAP
10.7k
Ω
0V to 10V
AGND
VIN
AGND
13.3k
Ω
0V to 5V
AGND
AGND
VIN
10.0k
Ω
0V to 4V
VIN
AGND
VIN
10.7k
Ω
TABLE I. Input Range Connections. See Figure 3 for
complete information.
TABLE II. Conversion and Data Timing. TA = –40°C to +85°C.
SDATA
DATACLK
DGND2
DGND1
SB/BTC
AGND
REF
CAP
R/C
BUSY
+5V
DIG2
+5V
DIG1
+5V
ANA
R1
IN
R2
IN
R3
IN
1
2
3
10
11
12
13
14
28
27
26
19
18
17
16
15
ISO808



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