®
PGA204
PGA205
Programmable Gain
INSTRUMENTATION AMPLIFIER
FEATURES
q
DIGITALLY PROGRAMMABLE GAIN:
PGA204: G=1, 10, 100, 1000V/V
PGA205: G=1, 2, 4, 8V/V
q
LOW OFFSET VOLTAGE: 50
µ
V max
q
LOW OFFSET VOLTAGE DRIFT: 0.25
µ
V/
°
C
q
LOW INPUT BIAS CURRENT: 2nA max
q
LOW QUIESCENT CURRENT: 5.2mA typ
q
NO LOGIC SUPPLY REQUIRED
q
16-PIN PLASTIC DIP, SOL-16 PACKAGES
DESCRIPTION
The PGA204 and PGA205 are low cost, general pur-
pose programmable-gain instrumentation amplifiers
offering excellent accuracy. Gains are digitally se-
lected: PGA204—1, 10, 100, 1000, and PGA205—1,
2, 4, 8V/V. The precision and versatility, and low cost
of the PGA204 and PGA205 make them ideal for a
wide range of applications.
Gain is selected by two TTL or CMOS-compatible
address lines, A
0
and A
1
. Internal input protection can
withstand up to
±40V
on the analog inputs without
damage.
The PGA204 and PGA205 are laser trimmed for very
low offset voltage (50µV), drift (0.25µV/°C) and high
common-mode rejection (115dB at G=1000). They op-
erate with power supplies as low as
±4.5V,
allowing use
in battery operated systems. Quiescent current is 5mA.
The PGA204 and PGA205 are available in 16-pin
plastic DIP, and SOL-16 surface-mount packages, speci-
fied for the –40°C to +85°C temperature range.
APPLICATIONS
q
DATA ACQUISITION SYSTEM
q
GENERAL PURPOSE ANALOG BOARDS
q
MEDICAL INSTRUMENTATION
V
O1
1
–
V
IN
4
Over-Voltage
Protection
V+
13
PGA204
PGA205
Feedback
12
A
1
25kΩ
25kΩ
A
1
A
0
Digital
Ground
+
V
IN
16
15
14
Digitally Selected
Feedback Network
A
3
11
V
O
5
Over-Voltage
Protection
6
A
2
25kΩ
7
9
V
O2
8
V–
25kΩ
10
Ref
V
OS
Adj
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
®
©
1991 Burr-Brown Corporation
PDS-1176A
1
Printed in U.S.A.
PGA204/205
October, 1993
BURR-BROWN [ BURR-BROWN CORPORATION ]
