PGA203AG BURR-BROWN [Burr-Brown Corporation], PGA203AG Datasheet

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PGA203AG

Manufacturer Part Number
PGA203AG
Description
Digitally Controlled Programmable-Gain INSTRUMENTATION AMPLIFIER
Manufacturer
BURR-BROWN [Burr-Brown Corporation]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PGA203AG
Manufacturer:
LAT
Quantity:
6
FEATURES
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.
International Airport Industrial Park
Covered by U.S. PATENT #4,883,422
©
Tel: (520) 746-1111
1989 Burr-Brown Corporation
DIGITALLY PROGRAMMABLE GAINS:
DECADE MODEL—PGA202
BINARY MODEL—PGA203
LOW BIAS CURRENT: 50pA max
FAST SETTLING: 2 s to 0.01%
LOW NON-LINEARITY: 0.012% max
HIGH CMRR: 80dB min
NEW TRANSCONDUCTANCE CIRCUITRY
LOW COST
GAINS OF 1, 10, 100, 1000
GAINS OF 1, 2, 4, 8
Digitally Controlled Programmable-Gain
Twx: 910-952-1111
INSTRUMENTATION AMPLIFIER
®
Mailing Address: PO Box 11400
Cable: BBRCORP
Telex: 066-6491
PDS-1006C
Tucson, AZ 85734
1
+V
+V
APPLICATIONS
IN
IN
DATA ACQUISITION SYSTEMS
AUTO-RANGING CIRCUITS
DYNAMIC RANGE EXPANSION
REMOTE INSTRUMENTATION
TEST EQUIPMENT
7
8
FAX: (520) 889-1510
V
A
1
6
OS
Circuits
• Street Address: 6730 S. Tucson Blvd.
0
Front
Logic
End
and
2
A
Adjust
1
14
9
Digital Common
I
I
1
2
PGA202/203
Immediate Product Info: (800) 548-6132
PGA202/203
+
30k *
30k *
5.3pF*
5.3pF*
Printed in U.S.A. August, 1993
*±20%
• Tucson, AZ 85706
10
11
12
4
5
Filter B
Sense
V
V
Filter A
OUT
REF
®

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PGA203AG Summary of contents

Page 1

Digitally Controlled Programmable-Gain INSTRUMENTATION AMPLIFIER FEATURES DIGITALLY PROGRAMMABLE GAINS: DECADE MODEL—PGA202 GAINS OF 1, 10, 100, 1000 BINARY MODEL—PGA203 GAINS LOW BIAS CURRENT: 50pA max FAST SETTLING 0.01% LOW NON-LINEARITY: 0.012% ...

Page 2

SPECIFICATIONS ELECTRICAL At + 15V unless otherwise noted. CC PARAMETER CONDITION GAIN (2) Error G < 1000 G = 1000 Nonlinearity G < 1000 G = 1000 Gain vs Temperature G < 100 G = 100 G ...

Page 3

... Ceramic DIP PGA202BG 1, 10, 100, 1000 Ceramic DIP PGA203KP Plastic DIP PGA203AG Ceramic DIP PGA203BG Ceramic DIP The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice ...

Page 4

TYPICAL PERFORMANCE CURVES 15V unless otherwise noted GAIN vs FREQUENCY –20 – Frequency (Hz) CMRR vs FREQUENCY 160 G ...

Page 5

TYPICAL PERFORMANCE CURVES 15V unless otherwise noted QUIESCENT CURRENT vs POWER SUPPLY Power Supply (±V) INPUT RANGE vs POWER SUPPLY ...

Page 6

TYPICAL PERFORMANCE CURVES 15V unless otherwise noted QUIESCENT CURRENT vs TEMPERATURE –50 – Temperature (°C) CURRENT LIMIT vs TEMPERATURE –50 ...

Page 7

TYPICAL PERFORMANCE CURVES (CONT + 15V unless otherwise noted SMALL SIGNAL RESPONSE 1µs/Div DISCUSSION OF PERFORMANCE A simplified diagram of the PGA202/203 is shown on the first page. The design ...

Page 8

GAIN SELECTION Gain selection is accomplished by the application of a 2-bit digital word to the gain select inputs. Table I shows the gains for the different possible values of the digital input word. The logic inputs are referred to ...

Page 9

INPUT CHARACTERISTICS Because the PGA202/203 have FET inputs, the bias currents drawn through input source resistors have a negligible effect on DC accuracy. The picoamp currents produce no more than microvolts through megohm sources. The inputs are also internally diode ...

Page 10

PGA203 7 – FIGURE 9. Floating Source Programmable Gain Instrumen- tation Amplifier. + OPA27 – 10k 200 PGA203 IN 10k 7 – 1 – OPA27 + Gain Control FIGURE 10. Low Noise ...

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