PRELIMINARY TECHNICAL DATA
Precision Very Low Noise
Low Input Bias Current
Operational Amplifiers
Preliminary Technical Data
AD8671/AD8672/AD8674
FEATURES
Low Noise: 3nV/√Hz
Wide Bandwidth: 10MHz
Low Input Bias Current: 10nA max.
Low Offset Voltage: 75
µV
max.
High open loop gain: 135dB
Low Supply Current: 3 mA/Amp
Dual supply operation: ±5V to ±15V
Unity Gain Stable
No Phase Reversal
APPLICATIONS
PLL filters
Instrumentation
Sensors and Controls
Professional quality audio
available in 14-lead TSSOP and narrow 14-lead SO
packages. Surface mount devices in TSSOP and
MSOP packages are available in tape and reel only.
PIN CONFIGURATIONS
8-Lead MSOP
(RM-8)
8-Lead SO
(R-8)
AD8671
AD8672
GENERAL DESCRIPTION
8-Lead SO
(R-8)
14-Lead TSSOP
(RU-14)
The AD8671, AD8672 and AD8674 are precision
single, dual and quad amplifiers featuring very low
noise, very low offset voltage and drift, low input bias
current, 10Mhz bandwidth and low power
consumption. Outputs are stable with capacitive loads
of over 100pF. Supply current is less than 3 mA per
amplifier at 30V.
Applications for these amplifiers include high quality
PLL filters, instrumentation--thermocouple, RTD,
strain-bridge and other sensor signal conditioning--
precision filters and professional quality audio.
The AD8671, AD8672 and AD8674 are specified
over the extended industrial (-40° to +125°C)
temperature range. The AD8671, single, is available
in the 8-lead MSOP and 8-lead SOIC packages.
The AD8672, dual, is available in the 8-lead MSOP
and 8-lead SOIC packages. The AD8674, quad, is
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
AD8671
AD8674
8-Lead MSOP
(RM-8)
14-Lead SO
(R-14)
AD8672
AD8674
One Technology Way, PO Box 9106, Norwood, MA 02062-9106,
USA
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1997
AD8671/AD8672/AD8674
Rev 0.2
2/21/02
PRELIMINARY TECHNICAL DATA
Preliminary Technical Data
AD8671/AD8672/AD8674
ELECTRICAL CHARACTERISTICS
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Offset Voltage Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Current
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Symbol
V
OS
-40°< T
A
< +125°C
I
B
I
OS
CMRR
A
VO
∆V
OS
/∆T
V
OH
V
OL
I
OUT
PSRR
I
SY
V
S
=
±
2.5 V to
±
15 V
V
O
= 0V
-40°<T
A
< +125°C
SR
GBP
e
n
p-p
e
n
i
n
0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
R
L
=2 kΩ
4
10
0.08
3
0.2
110
V
CM
= -2V to 2V
R
L
= 2 kΩ , Vo= -3V to 3V
-40°< T
A
< +125°C
I
L
= 1 mA, -40°C to +125°C
I
L
= 1 mA, -40°C to +125°C
3
-10
-10
-2.5
100
1000
130
6000
0.3
3.8
-3.9
±10
130
3000
3500
4000
-3
1
(@ V
S
=
±
5.0V, V
CM
= 0V, T
A
=+25°C unless noted
Min
Typ
Max
75
175
10
10
2.5
Units
µV
µV
nA
nA
V
dB
V/mV
µV/°C
V
V
mA
dB
µA
µA
V/µs
MHz
µV
p-p
nV/√Hz
pA/√Hz
Conditions
AD8671/AD8672/AD8674
Rev0.2 2/21/02
PRELIMINARY TECHNICAL DATA
Preliminary Technical Data
AD8671/AD8672/AD8674
ELECTRICAL CHARACTERISTICS
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Offset Voltage Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Current
Short Circuit Current
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Symbol
V
OS
-40°< T
A
< +125°C
I
B
I
OS
CMRR
A
VO
∆V
OS
/∆T
V
OH
V
OL
I
OUT
I
SC
PSRR
I
SY
V
S
= ±2.5 V to ±15 V
V
O
= 0V
-40°<T
A
< +125°C
SR
GBP
e
n
p-p
e
n
i
n
0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
R
L
=2 kΩ
4
10
0.08
3
0.2
110
V
CM
= -12V to 12V
R
L
= 2 kΩ , Vo = -10V to 10V
-40°< T
A
< +125°C
I
L
= 10 mA, -40°C to +125°C
I
L
= 10 mA, -40°C to +125°C
-10
-10
-10
-12.5
110
1000
140
6000
0.3
13.5
-13.5
±20
±30
130
3000
3500
4000
10
1
(@ V
S
=
±
15V,
V
CM
= 0V, T
A
=+25°C unless noted)
Min
Typ
Max
75
175
10
10
12.5
Units
µV
µV
nA
nA
V
dB
V/mV
µV/°C
V
V
mA
mA
dB
µA
µA
V/µs
MHz
µV
p-p
nV/√Hz
pA/√Hz
Conditions
AD8671/AD8672/AD8674
Rev0.2 2/21/02
PRELIMINARY TECHNICAL DATA
Preliminary Technical Data
AD8671/AD8672/AD8674
ABSOLUTE MAXIMUM RATINGS
1
Supply voltage ............................................................................36V
Input Voltage....................................................................Vs- to Vs+
Differential Input Voltage ......................................................... TBD
Output Short-Circuit Duration .......................................... Indefinite
Storage Temperature Range
RM, R, RU Package .......................................-65°C to +150°C
Operating Temperature Range
AD8671/AD8672/AD8674............................-40°C to +125°C
Junction Temperature Range
RM, R, RU Package .......................................-65°C to +150°C
Lead Temperature Range (Soldering, 60 Sec)........................+300°C
Package Type
8-pin MSOP (RM)
8-Pin SOIC (R)
14-Pin TSSOP (RU)
14-Pin SOIC (R)
NOTES
1 Absolute maximum ratings apply at 25°C, unless otherwise noted.
2
θ
is specified for the worst case conditions, i.e.,
θ
is specified for device soldered
JA
JA
in circuit board for surface mount packages.
θ
JA
190
158
180
120
θ
JC
44
43
35
36
Units
°C/W
°C/W
°C/W
°C/W
ORDERING GUIDE
Model
AD8671ARM
AD8671AR
AD8672ARM
AD8672AR
AD8674ARU
AD8674AR
Temperature Range
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
Package Description
8-Pin MSOP
8-Pin SOIC
8-Pin MSOP
8-Pin SOIC
14-Pin TSSOP
14-Pin SOIC
Package Option
RM-8
R-8
RM-8
R-8
RU-14
R-14
AD8671/AD8672/AD8674
Rev0.2 2/21/02
