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AD8672TRZ-EP

P1-P3P4-P6P7-P8
Precision, Very Low Noise,
Low Input Bias Current Op Amp
Enhanced Product
AD8672-EP
Rev. 0 Document Feedback
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2015 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Voltage noise density: 2.8 nV/√Hz typical
Peak-to-peak noise: 77 nV p-p typical
Gain bandwidth product: 10 MHz
Low input bias current: 14 nA maximum
Low offset voltage: 75 μV maximum
High open-loop gain: 1000 V/mV (120 dB)
Low supply current per amplifier: 3 mA typical
Dual-supply operation: ±5 V to ±15 V
Unity-gain stable
No phase reversal
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC standard)
Extended temperature range: −55°C to +125°C
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Phase-locked loop (PLL) filters
Filters for GPS
Instrumentation
Sensors and controls
Professional quality audio
PIN CONFIGURATION
OUT A
1
–IN A
2
+IN A
3
V–
4
V+
OUT B
–IN B
+IN B
8
7
6
5
13063-001
AD8672-EP
TOP VIEW
(Not to Scale)
Figure 1.
GENERAL DESCRIPTION
The AD8672-EP is a very high precision amplifier featuring very
low noise, very low offset voltage and drift, low input bias current,
10 MHz bandwidth, and low power consumption. Outputs are
stable with capacitive loads of over 1000 pF. Supply current is less
than 3 mA per amplifier at 30 V.
The combination of ultralow noise, high precision, speed, and
stability within the AD8672-EP is unmatched. Applications for
this amplifier include high quality PLL filters, precision filters,
medical and analytical instrumentation, precision power supply
controls, ATE, data acquisition, and precision controls, as well
as professional quality audio.
The AD8672-EP is available in an 8-lead SOIC narrow package.
It is specified over a −55°C to +125°C temperature range.
Additional application and technical information can be found
in the AD8672 data sheet.
AD8672-EP Enhanced Product
Rev. 0 | Page 2 of 8
TABLE OF CONTENTS
Features .............................................................................................. 1
Enhanced Product Features ............................................................ 1
Applications ....................................................................................... 1
Pin Configuration ............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics, ±5 V .................................................. 3
Electrical Characteristics, ±15 V .................................................4
Absolute Maximum Ratings ............................................................5
Thermal Resistance .......................................................................5
ESD Caution...................................................................................5
Typical Performance Charateristics ................................................6
Outline Dimensions ..........................................................................8
Ordering Guide .............................................................................8
REVISION HISTORY
9/15—Revision 0: Initial Version
Enhanced Product AD8672-EP
Rev. 0 | Page 3 of 8
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS, ±5 V
V
SY
= ±5.0 V, V
CM
= 0 V, T
A
= 25°C, unless otherwise specified.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
20 75 μV
−55°C < T
A
< +125°C 30 125 μV
Offset Voltage Drift ∆V
OS
/∆T −55°C < T
A
< +125°C 0.3 0.8 μV/°C
Input Bias Current I
B
−14 +3 +14 nA
25°C < T
A
< 125°C −20 +5 +20 nA
−55°C < T
A
< +125°C −60 +8 +60 nA
Input Offset Current I
OS
−14 +6 +14 nA
25°C < T
A
< 125°C −20 +6 +20 nA
−55°C < T
A
< +125°C −60 +8 +60 nA
Input Voltage Range −2.5 +2.5 V
Common-Mode Rejection Ratio CMRR V
CM
= −2.5 V to +2.5 V 100 120 dB
Large Signal Voltage Gain A
VO
R
L
= 2 kΩ, V
O
= −3 V to +3 V 1000 6000 V/mV
Input Capacitance
Common Mode C
INCM
6.25 pF
Differential Mode C
INDM
7.5 pF
Input Resistance
Common Mode R
IN
3.5 GΩ
Differential Mode R
INDM
15 MΩ
OUTPUT CHARACTERISTICS
Output Voltage
High V
OH
R
L
= 2 kΩ, −55°C to +125°C +3.8 +4.0 V
R
L
= 600 Ω +3.7 +3.9 V
Low V
OL
R
L
= 2 kΩ, −55°C to +125°C −3.9 −3.8 V
R
L
= 600 Ω −3.8 −3.7 V
Output Current I
OUT
±10 mA
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= ±4 V to ±18 V 110 130 dB
Supply Current per Amplifier I
SY
V
O
= 0 V 3 3.5 mA
−55°C < T
A
< +125°C 4.2 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 2 kΩ 4 V/μs
Settling Time t
S
To 0.1% (4 V step, G = 1) 1.4 μs
To 0.01% (4 V step, G = 1) 5.1 μs
Gain Bandwidth Product GBP 10 MHz
NOISE PERFORMANCE
Peak-to-Peak Noise e
n p-p
0.1 Hz to 10 Hz 77 100 nV p-p
Voltage Noise Density e
n
f = 1 kHz 2.8 3.8 nV/√Hz
Current Noise Density i
n
f = 1 kHz 0.3 pA/√Hz
Channel Separation C
S
f = 1 kHz −130 dB
f = 10 kHz −105 dB
P1-P3P4-P6P7-P8

AD8672TRZ-EP

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Buy AD8672TRZ-EP
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers DUAL PRECISION LOW NOISE BIPOLAR AMP
Lifecycle:
New from this manufacturer.
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