®
OPA675
OPA676
Wideband Switched-Input
OPERATIONAL AMPLIFIER
FEATURES
q
FAST SETTLING: 9ns (1%)
q
WIDE BANDWIDTH: 185MHz (A
V
= 10)
q
LOW OFFSET VOLTAGE:
±
250
µ
V
q
TWO LOGIC SELECTABLE INPUTS
q
FAST INPUT SWITCHING: 8ns (TTL)
q
16-PIN DIP PACKAGE
APPLICATIONS
q
PROGRAMMABLE-GAIN AMPLIFIER
q
FAST 2-INPUT MULTIPLEXER
q
SYNCHRONOUS DEMODULATOR
q
PULSE/RF AMPLIFIERS
q
VIDEO AMPLIFIERS
q
ACTIVE FILTERS
DESCRIPTION
The OPA675 and OPA676 are wideband monolithic
operational amplifiers with two independent differen-
tial inputs. Either input can be selected by an external
logic signal. The OPA675 is compatible with ECL logic
while the OPA676 is TTL compatible. Both amplifiers
are externally compensated and feature very fast input
selection speed: ECL = 4ns, TTL = 6ns. This amplifier
features fully symmetrical differential inputs due to its
“classical” operational amplifier circuit architecture.
Unlike “current-feedback” amplifier designs, the
OPA675/676 may be used in all op amp applications
requiring high speed and precision.
Low distortion and crosstalk make these amplifiers
suitable for RF and video applications.
The OPA675 and OPA676 are available in KG (0°C to
+70°C) and SG (–55°C to +125°C) grades. All grades
are packaged in a 16-pin DIP.
_
Input A
+
A
Output
_
Input B
+
TTL: OPA676
ECL: OPA675
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
©
B
Compensation
1988 Burr-Brown Corporation
PDS-864D
Printed in U.S.A. October, 1993
SPECIFICATIONS
ELECTRICAL
At V
CC
=
±5VDC,
R
L
= 150Ω, and T
A
= +25°C, unless otherwise noted.
OPA675/676JG, SG
PARAMETER
INPUT NOISE
(1)
Voltage: f
O
= 10Hz
f
O
= 100Hz
f
O
= 1kHz
f
O
= 10kHz
f
O
= 100kHz
f
B
= 10Hz to 10MHz
Current: f
O
= 10Hz to 1MHz
OFFSET VOLTAGE
(1)
Input Offset Voltage
Average Drift
Supply Rejection
BIAS CURRENT
(1)
Input Bias Current
OFFSET
Input Offset Current
INPUT
Differential
Common-Mode
CURRENT
(1)
V
CM
= 0VDC
0.8
4k
2
10
5
5
±1.25
75
65
Gain = +2V/V
Gain = +5V/V
Gain = +10V/V
Gain = +50V/V
Gain = +10V/V, f = 100kHz
f = 1MHz
f = 10MHz
f = 100MHz
G = +10V/V, R
L
= 50Ω, V
O
= 0.5Vp-p
Second Harmonic
Third Harmonic
V
O
= 2.5Vp-p, Gain = +10V/V
Gain = +10V/V
Gain = +10V/V
0.625V Output Step
ECL: OPA675
TTL: OPA676
Logic “LO”
Logic “HI”
Logic “LO”, V
IL
= 0V
Logic “HI”, V
IH
= +2.7V
Logic “LO”
Logic “HI”
Logic “LO”, V
IL
= –1.6V
Logic “HI”, V
IH
= –1.0V
R
L
= 150Ω
R
L
= 50Ω
0
+2.0
–0.05
1
–1.81
–1.15
–50
–50
±2.1
+1.25
–0.95
±2.6
+1.8
–1.1
±30
5
50
+45
–25
±2.5
100
70
100
145
185
60
–100
–80
–68
–35
–61
–73
44
350
9
15
25
5
7.5
+0.8
+5
–0.2
20
–1.475
– 0.88
–100
–100
*
*
*
*
*
*
*
*
*
*
–1.0
*
*
*
*
*
*
*
*
*
85
*
5
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
µA
Ω pF
Ω pF
V
dB
dB
MHz
MHz
MHz
MHz
dBC
(2)
dBC
dBC
dBC
dBC
dBC
MHz
V/µs
ns
ns
ns
ns
ns
V
V
mA
µA
V
V
µA
µA
V
V
V
mA
Ω
pF
mA
mA
CONDITIONS
R
S
= 0Ω
MIN
TYP
27
10
3.8
2.6
2.4
7.9
2.7
±500
±3
86
23
±2mV
±10
70
35
MAX
OPA675/676KG
MIN
TYP
*
*
*
*
*
*
*
±250
±1
*
*
±1mV
±5
MAX
UNITS
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
µVrms
pA/√Hz
µV
µV/°C
dB
µA
V
CM
= 0VDC
T
A
= T
MIN
to T
MAX
±V
CC
= 4.5V to 5.5V
V
CM
= 0VDC
65
30
IMPEDANCE
(1)
INPUT VOLTAGE RANGE
(1)
Common-Mode Input Range
Common-Mode Rejection
OPEN LOOP GAIN, DC
(1)
Open-Loop Voltage Gain
FREQUENCY RESPONSE
Closed-Loop Bandwidth
V
IN
=
±0.5VDC,
V
O
=
±1.25V
Crosstalk
Harmonic Distortion: 10MHz
Full Power Response
Slew Rate
Settling Time: 1%
0.1%
0.01%
INPUT SELECTION
(3)
Transition Time
50% In to 50% Out
DIGITAL INPUT
TTL Logic Levels: V
IL
V
IH
I
IL
I
IH
ECL Logic Levels: V
IL
V
IH
I
IL
I
IH
RATED OUTPUT
Voltage Output
25
200
30
240
Current Output
Output Resistance
Load Capacitance Stability
Short Circuit Current
* Same specifications as for JG.
1MHz, Open-Loop, C
C
= 5pF
Gain = +2V/V
Continuous to Gnd
®
OPA675/676
2
SPECIFICATIONS
(CONT)
ELECTRICAL
At V
CC
=
±5VDC,
R
L
= 150Ω, and T
A
= +25°C, unless otherwise noted.
OPA675/676JG, SG
PARAMETER
POWER SUPPLY
Rated Voltage
Derated Performance
Current, Quiescent
TEMPERATURE RANGE
Specification
Operating:
θ
JA
* Same specifications as for JG.
CONDITIONS
±V
CC
±V
CC
I
O
= 0mADC
Ambient Temp JG, KG
SG
Ambient Temp JG, KG, SG
MIN
TYP
5
4.5
22
0
–55
–55
125
6.5
30
+70
+125
+125
*
*
*
*
*
MAX
OPA675/676KG
MIN
TYP
*
*
*
*
*
MAX
UNITS
VDC
VDC
mA
°C
°C
°C
°C/W
ELECTRICAL (FULL TEMPERATURE RANGE SPECIFICATIONS)
At V
CC
=
±5VDC,
R
L
= 150Ω, and T
A
= T
MIN
to T
MAX
, unless otherwise noted.
OPA675/676JG, SG
PARAMETER
TEMPERATURE RANGE
Specification
OFFSET VOLTAGE
Average Drift
Supply Rejection
BIAS CURRENT
Input Bias Current
OFFSET CURRENT
Input Offset Current
INPUT VOLTAGE RANGE
Common-Mode Input Range
Common-Mode Rejection
OPEN LOOP GAIN, DC
Open-Loop Voltage Gain
DIGITAL INPUT
TTL Logic Levels: V
IL
V
IH
I
IL
I
IH
ECL Logic Levels: V
IL
V
IH
I
IL
I
IH
RATED OUTPUT
Voltage Output
Logic “LO”
Logic “HI”
Logic “LO", V
IL
= 0V
Logic “HI”, V
IH
= +2.7V
Logic “LO”
Logic “HI”
Logic “LO”, V
IL
= –1.6V
Logic “HI”, V
IH
= –1.0V
R
L
= 150Ω
R
L
= 50Ω
CONDITIONS
Ambient Temp JG, KG
SG
T
A
= T
MIN
to T
MAX
±V
CC
= 4.5V to 5.5V
V
CM
= 0VDC
V
CM
= 0VDC
±2.0
60
60
0
+2.0
–0.08
5
–1.81
–1.15
–50
–50
±2.0
+1.25
–0.8
±2.5
+1.6
–1.0
25
35
*
*
–0.9
MIN
0
–55
±3
85
29
0.8
±2.3
80
68
+0.8
+5
–0.4
50
–1.475
–0.88
TYP
MAX
+70
+125
±10
65
50
10
*
65
63
*
*
*
*
*
*
*
*
*
*
*
*
*
OPA675/676KG
MIN
*
TYP
MAX
*
UNITS
°C
°C
µV/°C
dB
µA
µA
V
dB
dB
*
*
*
*
*
*
V
V
mA
µA
V
V
µA
µA
V
V
V
mA
60
±1
*
*
*
*
*
69
±5
*
*
V
IN
=
±0.5VDC,
V
O
=
±1.25V
POWER SUPPLY
Current, Quiescent
I
O
= 0mADC
* Same specifications as for JG.
NOTES: (1) Specifications are for both inputs (A and B). (2) dBC = Level referred to carrier-input signal. (3) Switching time from application of digital logic signal to
input signal selection.
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. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
3
OPA675/676
PIN CONFIGURATIONS
OPA675
OPA676
+In A
–In A
Offset Trim
Offset Trim
Compensation
Capacitor
NC
1
2
3
4
5
6
–
+
A
+
B
–
16
+In B
15
–In B
14
DNC
13
CHA (ECL)
12
CHA (ECL)
11
Common
10
–V
CC
9
NC
+In A
–In A
Offset Trim
Offset Trim
Compensation
Capacitor
NC
1
2
3
4
5
6
–
+
A
+
B
–
16
+In B
15
–In B
14
DNC
13
DNC
*
12
CHA (TTL)
11
Common
10
–V
CC
9
NC
+V
CC
7
Output
8
+V
CC
7
Output
8
*Capacitance on this node slows channel select.
PIN ASSIGNMENTS: OPA675
1
2
3
4
5
6
7
8
+In A
–In A
Offset Trim
Offset Trim
Compensation Capacitor
NC
+V
CC
Output
16
15
14
13
12
11
10
9
+In B
–In B
DNC
CHA (ECL)
CHA (ECL)
Common
–V
CC
NC
PIN ASSIGNMENTS: OPA676
1
2
3
4
5
6
7
8
+In A
–In A
Offset Trim
Offset Trim
Compensation Capacitor
NC
+V
CC
Output
16
15
14
13
12
11
10
9
+In B
–In B
DNC
DNC
CHA (TTL)
Common
–V
CC
NC
DNC = Do Not Connect
NC = No Internal Connection
DNC = Do Not Connect
NC = No Internal Connection
ABSOLUTE MAXIMUM RATINGS
Supply .............................................................................................
±7VDC
Differential Input Voltage ............................................................. Total V
CC
Input Voltage Range (Analog and Digital) ..........................................
±V
CC
Storage Temperature Range ....................................... –65°C to +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
Output Short Circuit to Ground (+25°C) ................... Continuous to ground
Junction Temperature .................................................................... +175°C
ORDERING INFORMATION
OPA675
OPA676
Basic Model Number
Performance Grade Code
J, K: 0°C to +70°C
S: –55°C to +125°C
Package Code
G: 16-pin Ceramic DIP
( )( )
( )( )
PACKAGE INFORMATION
MODEL
OPA675/76JG
OPA675/76SG
OPA675/76KG
PACKAGE
16-Pin Hermetic DIP
16-Pin Hermetic DIP
16-Pin Hermetic DIP
PACKAGE DRAWING
NUMBER
(1)
109
109
109
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
®
OPA675/676
4
DICE INFORMATION
PAD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FUNCTION
TTL Set
–In
B
+In
B
NC
NC
+In
A
–In
A
NC
V
OS
Adjust
V
OS
Adjust
NC
Comp Cap
NC
NC
PAD
15
16
17
18
19
20
21
22
23
24
25
26
27
28
FUNCTION
+V
CC
+V
CC
V
OUT
NC
NC
NC
NC
–V
CC
–V
CC
Ground
CHA (TTL)
ECL
OUT
CHA (ECL)
CHA (ECL)
NC:
No Connection (Do Not Connect).
OPA675-Do
not use
pads 1, 25, 26.
OPA676-Connect
pad 26 to pad 27. Connect pad
1 to pad 28.
Substrate Bias:
–V
CC
MECHANICAL INFORMATION
MILS (0.001")
Die Size
Die Thickness
103 x 90
±5
20
±3
OPA675/676 DIE TOPOGRAPHY
TYPICAL PERFORMANCE CURVES
SMALL SIGNAL
HARMONIC DISTORTION vs FREQUENCY
–30
LARGE SIGNAL
HARMONIC DISTORTION vs FREQUENCY
–30
Harmonic Distortion (dBC)
Harmonic Distortion (dBC)
–40
Gain = +10V/V
R
L
= 50
Ω
V
O
= 0.5Vp-p
2f
–40
Gain = +10V/V
R
L
= 1k
Ω
V
O
= 2.5Vp-p
3f
2f
–50
3f
–60
–50
–60
–70
–70
–80
0.1
1
10
Frequency (MHz)
100
–80
0.1
1
10
Frequency (MHz)
100
A
V
= +50V/V CLOSED-LOOP
SMALL SIGNAL BANDWIDTH
50
45
40
35
C
C
= none
Gain
φ
BW = 60.6 MHz
φ
= –60.5°
φ
A
V
= +10V/V CLOSED-LOOP
SMALL SIGNAL BANDWIDTH
30
27
24
21
Gain (dB)
C
C
= 6.5pF
BW = 185MHz
φ
= –139.5°
φ
Phase (°)
®
Phase (°)
Gain
Gain (dB)
30
25
20
15
10
5
0
0.3
1
18
15
12
9
6
3
0
0.3
1
0
–45
–90
–135
–180
10
Frequency (MHz)
100
1000
φ
0
–45
–90
–135
–180
10
Frequency (MHz)
100
1000
5
OPA675/676
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