1
PGA204/205
A
1
A
2
A
3
12
11
10
25k
25k
25k
25k
13
7
5
14
16
4
V
IN
V
IN
V+
PGA204
PGA205
Ref
V
O
+
Over-Voltage
Protection
Over-Voltage
Protection
Feedback
Digitally Selected
Feedback Network
1
V
O1
15
A
1
A
0
Digital
Ground
6
9
8
V
O2
V
V
OS
Adj
PGA204
PGA205
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
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
V max
q
LOW OFFSET VOLTAGE DRIFT: 0.25
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
APPLICATIONS
q
DATA ACQUISITION SYSTEM
q
GENERAL PURPOSE ANALOG BOARDS
q
MEDICAL INSTRUMENTATION
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 (50
V), drift (0.25
V/
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.
1991 Burr-Brown Corporation
PDS-1176A
Printed in U.S.A. October, 1993
2
PGA204/205
* Specification same as PGA204BP.
NOTES: (1) Input-referred noise voltage varies with gain. See typical curves. (2) Output voltage swing is tested for
10V min on
11.4V power supplies. (3) Includes
time to switch to a new gain.
PGA204BP, BU
PGA204AP, AU
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
SPECIFICATIONS
ELECTRICAL
At T
A
= +25
C, V
S
=
15V, and R
L
= 2k
unless otherwise noted.
PGA204 G=1, 10, 100, 1000V/V
INPUT
Offset Voltage, RTI
T
A
=+25
C
10+20/G
50+100/G
25+30/G
125+500/G
V
vs Temperature
T
A
=T
MIN
to T
MAX
0.1+0.5/G
0.25+5/G
0.25+5/G
1+10/G
V/
C
vs Power Supply
V
S
=
4.5V to
18V
0.5+2/G
3+10/G
*
*
V/V
Long-Term Stability
0.2+0.5/G
*
V/mo
Impedance, Differential
10
10
||6
*
|| pF
Common-Mode
10
10
||6
*
|| pF
Input Common-Mode Range
V
O
=0V (see text)
10.5
12.7
*
*
V
Safe Input Voltage
40
*
V
Common-Mode Rejection
V
CM
=
10V,
R
S
=1k
G=1
80
99
75
90
dB
G=10
96
114
90
106
dB
G=100
110
123
106
110
dB
G=1000
115
123
106
110
dB
BIAS CURRENT
0.5
2
*
5
nA
vs Temperature
8
*
pA/
C
Offset Current
0.5
2
*
*
nA
vs Temperature
8
*
pA/
C
NOISE, Voltage, RTI
(1)
: f=10Hz
G
100, R
S
=0
16
*
nV/
Hz
f=100Hz
G
100, R
S
=0
13
*
nV/
Hz
f=1kHz
G
100, R
S
=0
13
*
nV/
Hz
f
B
=0.1Hz to 10Hz
G
100, R
S
=0
0.4
*
Vp-p
Noise Current
f=10Hz
0.4
*
pA/
Hz
f=1kHz
0.2
*
pA/
Hz
f
B
=0.1Hz to 10Hz
18
*
pAp-p
GAIN, Error
G=1
0.005
0.024
*
0.05
%
G=10
0.01
0.024
*
0.05
%
G=100
0.01
0.024
*
0.05
%
G=1000
0.02
0.05
*
0.1
%
Gain vs Temperature
G=1 to 1000
2.5
10
*
*
ppm/
C
Nonlinearity
G=1
0.0004
0.001
*
0.002
% of FSR
G=10
0.0004
0.002
*
0.004
% of FSR
G=100
0.0004
0.002
*
0.004
% of FSR
G=1000
0.0008
0.01
*
0.02
% of FSR
OUTPUT
Voltage, Positive
(2)
I
O
=5mA, T
MIN
to T
MAX
(V+)1.5
(V+)1.3
*
*
V
Negative
(2)
I
O
=5mA, T
MIN
to T
MAX
(V)+1.5
(V)+1.3
*
*
V
Load Capacitance Stability
1000
*
pF
Short Circuit Current
+23/17
*
mA
FREQUENCY RESPONSE
Bandwidth, 3dB
G=1
1
*
MHz
G=10
80
*
kHz
G=100
10
*
kHz
G=1000
1
*
kHz
Slew Rate
V
O
=
10V, G=10
0.3
0.7
*
*
V/
s
Settling Time
(3)
, 0.1%
G=1
22
*
s
G=10
23
*
s
G=100
100
*
s
G=1000
1000
*
s
0.01%
G=1
23
*
s
G=10
28
*
s
G=100
140
*
s
G=1000
1300
*
s
Overload Recovery
50% Overdrive
70
*
s
DIGITAL LOGIC
Digital Ground Voltage, V
DG
V
(V+)4
*
*
V
Digital Low Voltage
V
V
DG
+0.8V
*
*
V
Digital Input Current
1
*
A
Digital High Voltage
V
DG
+2
V+
*
*
V
POWER SUPPLY, Voltage
4.5
15
18
*
*
*
V
Current
V
IN
=0V
+5.2/4.2
6.5
*
7.5
mA
TEMPERATURE RANGE
Specification
40
+85
*
*
C
Operating
40
+125
*
*
C
JA
80
*
C/W
3
PGA204/205
SPECIFICATIONS
ELECTRICAL
At T
A
= +25
C, V
S
=
15V, and R
L
= 2k
unless otherwise noted.
INPUT
Offset Voltage, RTI
T
A
=+25
C
10+20/G
50+100/G
25+30/G
125+500/G
V
vs Temperature
T
A
=T
MIN
to T
MAX
0.1+0.5/G
0.25+5/G
0.25+5/G
1+10/G
V/
C
vs Power Supply
V
S
=
4.5V to
18V
0.5+2/G
3+10/G
*
*
V/V
Long-Term Stability
0.2+0.5/G
*
V/mo
Impedance, Differential
10
10
||6
*
||pF
Common-Mode
10
10
||6
*
||pF
Input Common-Mode Range
V
O
=0V (see text)
10.5
12.7
*
*
V
Safe Input Voltage
40
*
V
Common-Mode Rejection
V
CM
=
10V,
R
S
=1k
G=1
80
94
75
88
dB
G=2
85
100
80
94
dB
G=4
90
106
85
100
dB
G=8
95
112
89
106
dB
BIAS CURRENT
0.5
2
*
5
nA
vs Temperature
8
*
pA/
C
Offset Current
0.5
2
*
*
nA
vs Temperature
8
*
pA/
C
Noise Voltage, RTI
(1)
: f=10Hz
G=8, R
S
=0
19
*
nV/
Hz
f=100Hz
G=8, R
S
=0
15
*
nV/
Hz
f=1kHz
G=8, R
S
=0
15
*
nV/
Hz
f
B
=0.1Hz to 10Hz
G=8, R
S
=0
0.5
*
Vp-p
Noise Current
f=10Hz
0.4
*
pA/
Hz
f=1kHz
0.2
*
pA/
Hz
f
B
=0.1Hz to 10Hz
18
*
pAp-p
GAIN, Error
G=1
0.005
0.024
*
0.05
%
G=2
0.01
0.024
*
0.05
%
G=4
0.01
0.024
*
0.05
%
G=8
0.01
0.024
*
0.05
%
Gain vs Temperature
G=1 to 8
2.5
10
*
*
ppm/
C
Nonlinearity
G=1
0.00024
0.001
*
0.002
% of FSR
G=2
0.00024
0.002
*
0.004
% of FSR
G=4
0.00024
0.002
*
0.004
% of FSR
G=8
0.00024
0.002
*
0.004
% of FSR
OUTPUT
Voltage, Positive
(2)
I
O
=5mA, T
MIN
to T
MAX
(V+)1.5
(V+)1.3
*
*
V
Negative
(2)
I
O
=5mA, T
MIN
to T
MAX
(V)+1.5
(V)+1.3
*
*
V
Load Capacitance Stability
1000
*
pF
Short Circuit Current
+23/17
*
mA
FREQUENCY RESPONSE
Bandwidth, 3dB
G=1
1
*
MHz
G=2
400
*
kHz
G=4
200
*
kHz
G=8
100
*
kHz
Slew Rate
V
O
=
10V, G=8
0.3
0.7
*
*
V/
s
Settling Time
(3)
, 0.1%
G=1
22
*
s
G=2
22
*
s
G=4
23
*
s
G=8
23
*
s
0.01%
G=1
23
*
s
G=2
23
*
s
G=4
25
*
s
G=8
28
*
s
Overload Recovery
50% overdrive
70
*
s
DIGITAL LOGIC INPUTS
Digital Ground Voltage, V
DG
V
(V+)4
*
*
V
Digital Low Voltage
V
V
DG
+0.8V
*
*
V
Digital Low Current
1
*
A
Digital High Voltage
V
DG
+2
V+
*
*
V
POWER SUPPLY, Voltage
4.5
15
18
*
*
*
V
Current
V
IN
=0V
+5.2/4.2
6.5
*
7.5
mA
TEMPERATURE RANGE
Specification
40
+85
*
*
C
Operating
40
+125
*
*
C
JA
80
*
C/W
PGA205BP, BU
PGA205AP, AU
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
PGA205 G=1, 2, 4, 8V/V
* Specification same as PGA204BP.
NOTES: (1) Input-referred noise voltage varies with gain. See typical curves. (2) Output voltage swing is tested for
10V min on
11.4V power supplies. (3) Includes
time to switch to a new gain.
4
PGA204/205
PACKAGE INFORMATION
PACKAGE DRAWING
MODEL
PACKAGE
NUMBER
(1)
PGA204AP
16-Pin Plastic DIP
180
PGA204BP
16-Pin Plastic DIP
180
PGA204AU
SOL-16 Surface Mount
211
PGA204BU
SOL-16 Surface Mount
211
PGA205AP
16-Pin Plaseic DIP
180
PGA205BP
16-Pin Plastic DIP
180
PGA205AU
SOL-16 Surface Mount
211
PGA205BU
SOL-16 Surface Mount
211
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ..................................................................................
18V
Analog Input Voltage Range .............................................................
40V
Logic Input Voltage Range ..................................................................
V
S
Output Short-Circuit (to ground) .............................................. Continuous
Operating Temperature ................................................. 40
C to +125
C
Storage Temperature ..................................................... 40
C to +125
C
Junction Temperature .................................................................... +150
C
Lead Temperature (soldering 10s) .............................................. +300
C
MODEL
GAINS
PACKAGE
TEMPERATURE RANGE
PGA204AP
1, 10, 100, 1000V/V
16-Pin Plastic DIP
40 to +85
C
PGA204BP
1, 10, 100, 1000V/V
16-Pin Plastic DIP
40 to +85
C
PGA204AU
1, 10, 100, 1000V/V
SOL-16 Surface-Mount
40 to +85
C
PGA204BU
1, 10, 100, 1000V/V
SOL-16 Surface-Mount
40 to +85
C
PGA205AP
1, 2, 4, 8V/V
16-Pin Plastic DIP
40 to +85
C
PGA205BP
1, 2, 4, 8V/V
16-Pin Plastic DIP
40 to +85
C
PGA205AU
1, 2, 4, 8V/V
SOL-16 Surface-Mount
40 to +85
C
PGA205BU
1, 2, 4, 8V/V
SOL-16 Surface-Mount
40 to +85
C
ORDERING INFORMATION
5
PGA204/205
DICE INFORMATION
PAD
FUNCTION
1
V
O1
2
--
3
--
4
V
IN
5
V
+
IN
6
V
OS
Adj
7
V
OS
Adj
8
V
FPO
MECHANICAL INFORMATION
MILS (0.001")
MILLIMETERS
Die Size
186 x 130
5
4.72 x 3.30
0.13
Die Thickness
20
3
0.51
0.08
Min. Pad Size
4 x 4
0.1 x 0.1
Backing
Gold
Substrate Bias: Internally connected to V power supply.
PGA204/205 DIE TOPOGRAPHY
PIN CONFIGURATION
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with ap-
propriate precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
NC: No Internal Connection.
V
O1
NC
NC
V
IN
V
+
IN
V
OS
Adjust
V
OS
Adjust
V
A
1
A
0
Dig. Ground
V+
Feedback
V
O
Ref
V
O2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Top View
PAD
FUNCTION
9
V
O2
10
Ref
11
V
O
12
Feedback
13
V+
14
Dig. Ground
15
A
0
16
A
1
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