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PDF PGA202 Data sheet ( Hoja de datos )
| Número de pieza | PGA202 | |
| Descripción | Digitally Controlled Programmable-Gain INSTRUMENTATION AMPLIFIER | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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® PGA202/203
Digitally Controlled Programmable-Gain
INSTRUMENTATION AMPLIFIER
FEATURES
q DIGITALLY PROGRAMMABLE GAINS:
DECADE MODEL—PGA202
GAINS OF 1, 10, 100, 1000
BINARY MODEL—PGA203
GAINS OF 1, 2, 4, 8
q LOW BIAS CURRENT: 50pA max
q FAST SETTLING: 2µs to 0.01%
q LOW NON-LINEARITY: 0.012% max
q HIGH CMRR: 80dB min
q NEW TRANSCONDUCTANCE CIRCUITRY
q LOW COST
APPLICATIONS
q DATA ACQUISITION SYSTEMS
q AUTO-RANGING CIRCUITS
q DYNAMIC RANGE EXPANSION
q REMOTE INSTRUMENTATION
q TEST EQUIPMENT
DESCRIPTION
The PGA202 is a monolithic instrumentation ampli-
fier with digitally controlled gains of 1, 10, 100, and
1000. The PGA203 provides gains of 1, 2, 4, and 8.
Both have TTL or CMOS-compatible inputs for easy
microprocessor interface. Both have FET inputs and a
new transconductance circuitry that keeps the band-
width nearly constant with gain. Gain and offsets are
laser trimmed to allow use without any external com-
ponents. Both amplifiers are available in ceramic or
plastic packages. The ceramic package is specified
over the full industrial temperature range while the
plastic package covers the commercial range.
VOS Adjust
69
5.3pF*
10 Filter B
+VIN 8
+VIN 7
Front
End
and
Logic
Circuits
I
1
I
2
30kΩ*
–
+
30kΩ*
11 Sense
12 VOUT
4 VREF
1 2 14
A0 A1 Digital Common
5.3pF*
*±20%
5 Filter A
Covered by U.S. PATENT #4,883,422
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 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1989 Burr-Brown Corporation
PDS-11006C
PGAP2rin0te2d i/n2U0.S.3A. August, 1993
®
1 page  
TYPICAL PERFORMANCE CURVES (CONT)
TA = +25°C, VS = ±15V unless otherwise noted.
QUIESCENT CURRENT vs POWER SUPPLY
10
8
6
4
2
0
6 9 12 15 18
Power Supply (±V)
12
11
10
9
8
7
0
6
INPUT BIAS CURRENT vs POWER SUPPLY
9 12 15
Power Supply (±V)
18
16
12
8
4
0
6
INPUT RANGE vs POWER SUPPLY
9 12 15
Power Supply (±V)
18
OUTPUT SWING vs POWER SUPPLY
15
TA = +25°C
10
TA = –25°C
5
0
6 9 12 15 18
Power Supply (±V)
15
10
5
0
0
OUTPUT SWING vs LOAD
500 1000 1500
Load ( Ω )
2000
10
8
6
4
2
–4
0
SETTLING TIME vs FILTER CAPACITOR
10 20
Filter Capacitor (pF)
30
®
5 PGA202/203
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet PGA202.PDF ] | |
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