Data Sheet
FEATURES
Low Noise, Precision, Rail-to-Rail Output,
JFET Single/Dual/Quad Op Amps
ADA4610-1/ADA4610-2/ADA4610-4
PIN CONFIGURATION
OUT A
1
–IN A
2
+IN A
3
V–
4
8
Low offset voltage
B grade: 0.4 mV maximum (ADA4610-1/ADA4610-2 only)
A grade: 1 mV maximum
Low offset voltage drift
B grade: 2 µV/°C maximum (ADA4610-1/ADA4610-2 only)
A grade: 8 µV/°C maximum (SOIC, MSOP, LFCSP packages)
Low input bias current: 5 pA typical
Dual-supply operation: ±5 V to ±15 V
Low voltage noise: 0.45 µV p-p at 0.1 Hz to 10 Hz
Voltage noise density: 7.30 nV/√Hz at f = 1 kHz
Low THD + N: 0.00025%
No phase reversal
Rail-to-rail output
Unity-gain stable
Long-term offset voltage drift (10,000 hours): 5 µV typical
Temperature hysteresis: 8 µV typical
V+
OUT B
09646-002
ADA4610-2
TOP VIEW
(Not to Scale)
7
6
5
–IN B
+IN B
Figure 1.
ADA4610-2
8-Lead SOIC (R Suffix); for Additional Packages and
Models, See the Pin Configurations and Function Descriptions Section
APPLICATIONS
Instrumentation
Medical instruments
Multipole filters
Precision current measurement
Photodiode amplifiers
Sensors
Audio
GENERAL DESCRIPTION
The
ADA4610-1/ADA4610-2/ADA4610-4
are precision junction
field effect transistor (JFET) amplifiers that feature low input noise
voltage, current noise, offset voltage, input bias current, and rail-to-
rail output. The
ADA4610-1
is a single amplifier, the
ADA4610-2
is
a dual amplifier, and the
ADA4610-4
is a quad amplifier.
The combination of low offset, noise, and very low input bias
current makes these amplifiers especially suitable for high
impedance sensor amplification and precise current measurements
using shunts. With excellent dc precision, low noise, and fast
settling time, the
ADA4610-1/ADA4610-2/ADA4610-4
provide
superior accuracy in medical instruments, electronic measurement,
and automated test equipment. Unlike many competitive
amplifiers, the
ADA4610-1/ADA4610-2/ADA4610-4
maintain
fast settling performance with substantial capacitive loads. Unlike
many older JFET amplifiers, the
ADA4610-1/ADA4610-2/
ADA4610-4
do not suffer from output phase reversal when input
voltages exceed the maximum common-mode voltage range.
The fast slew rate and great stability with capacitive loads make
the
ADA4610-1/ADA4610-2/ADA4610-4
ideal for high
Rev. I
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Trademarks and registered trademarks are the property of their respective owners.
performance filters. Low input bias currents, low offset, and low
noise result in a wide dynamic range for photodiode amplifier
circuits. Low noise and distortion, high output current, and
excellent speed make the
ADA4610-1/ADA4610-2/ ADA4610-4
great choices for audio applications.
The
ADA4610-1/ADA4610-2/ADA4610-4
are specified over
the −40°C to +125°C extended industrial temperature range.
The
ADA4610-1
is available in an 8-lead SOIC package and in a
5-lead SOT-23 package. The
ADA4610-2
is available in 8-lead
SOIC, 8-lead MSOP, and 8-lead LFCSP packages. The
ADA4610-4
is available in a 14-lead SOIC package and in a 16-lead LFCSP.
Table 1. Related Precision JFET Operational Amplifiers
Single
AD8510
AD8610
AD820
ADA4627-1/ADA4637-1
Not applicable
Dual
AD8512
AD8620
AD822
Not applicable
ADA4001-2
Quad
AD8513
Not applicable
AD824
Not applicable
Not applicable
ADA4610-1/ADA4610-2/ADA4610-4
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configuration ............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 3
Specifications..................................................................................... 4
Electrical Characteristics ............................................................. 5
Absolute Maximum Ratings ............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution .................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 11
Data Sheet
Comparative Voltage and Variable Voltage Graphs ............... 17
Theory of Operation ...................................................................... 20
Applications Information .............................................................. 21
Input Overvoltage Protection ................................................... 21
Peak Detector .............................................................................. 21
Current to Voltage (I to V) Conversion Applications ........... 21
Comparator Operation .............................................................. 22
Long-Term Drift ......................................................................... 23
Temperature Hysteresis ............................................................. 23
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 27
Rev. I | Page 2 of 27
Data Sheet
REVISION HISTORY
6/2019—Rev. H to Rev. I
Change to Features Section .............................................................. 1
Change to Offset Voltage Drift, B Grade (ADA4610-1/
ADA4610-2) Parameter, Table 2 ..................................................... 4
Change to Offset Voltage Drift, B Grade (ADA4610-1/
ADA4610-2) Parameter, Table 3 ..................................................... 5
Replaced Figure 10 and Figure 13 .................................................11
Change to Theory of Operation Section ......................................20
5/2017—Rev. G to Rev. H
Changed CP-8-21 to CP-8-11 ...................................... Throughout
Changes to Features Section ............................................................ 1
Changes to Figure 15 Caption, Figure 16 Caption, Figure 18
Caption, and Figure 19 Caption ....................................................12
Changed Functional Description Section to Theory of
Operation Section ...........................................................................20
Added Long-Term Drift Section, Temperature Hysteresis Section,
Figure 61, Figure 62, and Figure 63; Renumbered Sequentially .....23
Updated Outline Dimensions ........................................................24
Changes to Ordering Guide ...........................................................27
5/2016—Rev. F to Rev. G
Changed CP-8-20 to CP-8-21 ...................................... Throughout
Changes to Figure 23 Caption and Figure 26 Caption ...............13
Updated Outline Dimensions ........................................................24
Changes to Ordering Guide ...........................................................25
1/2016—Rev. E to Rev. F
Added 5-Lead SOT-23 ....................................................... Universal
Changed CP-8-9 to CP-8-20 ........................................ Throughout
Change to Features Section .............................................................. 1
Added Figure 3 and Table 7; Renumbered Sequentially .............. 8
Updated Outline Dimensions ........................................................23
Changes to Ordering Guide ...........................................................25
4/2015—Rev. D to Rev. E
Added ADA4610-1 ............................................................ Universal
Added 16-Lead LFCSP_WQ ............................................. Universal
Deleted Figure 1 and Figure 3; Renumbered Sequentially .......... 1
Changes to Features Section ............................................................ 1
Changes to Table 2 ............................................................................ 4
Changes to Table 3 ............................................................................. 5
Added Figure 2 and Table 6; Renumbered Sequentially .............. 7
Added Figure 4 .................................................................................. 8
Added Figure 7 .................................................................................. 9
Changes to Table 8 ............................................................................ 9
Changes to Figure 10 Caption and Figure 13 Caption ...............10
Changes to Figure 14 Caption, Figure 15, Figure 17 Caption,
and Figure 18 ...................................................................................11
Changes to Figure 22 and Figure 25 .............................................12
Changes to Figure 26 to Figure 31 ................................................13
ADA4610-1/ADA4610-2/ADA4610-4
Changes to Figure 32 and Figure 35 ............................................. 14
Changes to Figure 38 and Figure 40 ............................................. 15
Changes to Figure 42 to Figure 46 ................................................ 16
Changes to Figure 48, Figure 50, and Figure 53 .......................... 17
Changes to Figure 54 and Figure 55 ............................................. 18
Changes to Figure 57 and Figure 58 ............................................. 20
Updated Outline Dimensions........................................................ 22
Added Figure 64 .............................................................................. 23
Changes to Ordering Guide ........................................................... 24
11/2014—Rev. C to Rev. D
Change to Figure 56 ........................................................................ 19
5/2014—Rev. B to Rev. C
Added ADA4610-4 and 14-Lead SOIC ........................... Universal
Added Voltage Noise Density to Features Section, Figure 3, and
Table 1; Renumbered Sequentially.................................................. 1
Changes to Table 2 ............................................................................ 3
Changes to Table 3 ............................................................................ 4
Changes to Table 4 ............................................................................ 6
Added Pin Configurations and Function Descriptions
Section, Figure 4 to Figure 6, Table 6, and Table 7 ....................... 7
Changes to Typical Performance Characteristics Section ........... 8
Added Functional Description Section ........................................ 17
Added Input Overvoltage Protection Section, Peak Detector
Section, I to V Conversion Applications Section, and
Photodiode Circuits Section .......................................................... 18
Change to Figure 56 ........................................................................ 18
Added Figure 62, Outline Dimensions ........................................ 20
Changes to Ordering Guide ........................................................... 20
8/2012—Rev. A to Rev. B
Changes to Figure 9 .......................................................................... 8
5/2012—Rev. 0 to Rev. A
Changes to Data Sheet Title and General Description Section .. 1
Changed Input Impedance Parameter, Differential to Input
Capacitance Parameter, and Differential Parameter, Table 1 ...... 3
Added Input Resistance in Table 1.................................................. 3
Changed Input Impedance, Differential Parameter to Input
Capacitance, Differential Parameter, Table 2 ................................ 4
Added Input Resistance Parameter, Table 2 .................................. 4
Added Figure 9, Figure 10, and Figure 14; Renumbered
Sequentially ........................................................................................ 8
Added Figure 15 ................................................................................ 9
Updated Outline Dimensions........................................................ 16
Changes to Ordering Guide ........................................................... 17
12/2011—Revision 0: Initial Version
Rev. I | Page 3 of 27
ADA4610-1/ADA4610-2/ADA4610-4
SPECIFICATIONS
V
SY
= ±5 V, V
CM
= 0 V, T
A
= 25°C, unless otherwise noted.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
B Grade (ADA4610-1/ADA4610-2)
A Grade
−40°C < T
A
< +125°C
Offset Voltage Drift
B Grade (ADA4610-1/ADA4610-2)
1
A Grade
1
(SOIC, MSOP, LFCSP)
A Grade
1
(SOT-23)
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
ADA4610-2
ADA4610-1/ADA4610-4
Input Capacitance
Differential
Common-Mode
Input Resistance
OUTPUT CHARACTERISTICS
Output Voltage High
−40°C < T
A
< +125°C
V
CM
= 0 V
ΔV
OS
/ΔT
0.5
1
1
5
−40°C < T
A
< +125°C
I
OS
−40°C < T
A
< +125°C
CMRR
A
VO
V
CM
= −2.5 V to +2.5 V
−40°C < T
A
< +125°C
R
L
= 2 kΩ, V
OUT
= −3.5 V to +3.5 V
−40°C < T
A
< +125°C
−2.5
94
86
98
86
96
84
110
2
Symbol
V
OS
0.2
−40°C < T
A
< +125°C
0.4
Test Conditions/Comments
Min
Typ
Data Sheet
Max
Unit
0.4
0.8
1
1.8
2
8
12
25
1.5
20
0.25
+2.5
mV
mV
mV
mV
µV/°C
µV/°C
µV/°C
pA
nA
pA
nA
V
dB
dB
dB
dB
dB
dB
pF
pF
Ω
V
V
V
V
V
V
V
V
mA
I
B
100
98
V
CM
= 0 V
V
OH
R
L
= 2 kΩ
−40°C < T
A
< +125°C
R
L
= 600 Ω
−40°C < T
A
< +125°C
R
L
= 2 kΩ
−40°C < T
A
< +125°C
R
L
= 600 Ω
−40°C < T
A
< +125°C
4.85
4.60
4.60
4.05
3.1
4.8
>10
13
4.90
4.89
−4.95
−4.90
±63
−4.90
−4.75
−4.80
−4.40
Output Voltage Low
V
OL
Short-Circuit Current
POWER SUPPLY
Power Supply Rejection Ratio
ADA4610-2
I
SC
PSRR
V
SY
= ±4.5 V to ±18 V
106
103
104
100
125
117
1.50
1.70
1.85
−40°C < T
A
< +125°C
ADA4610-1/ADA4610-4
Supply Current per Amplifier
I
SY
−40°C < T
A
< +125°C
I
OUT
= 0 mA
−40°C < T
A
< +125°C
dB
dB
dB
dB
mA
mA
Rev. I | Page 4 of 27
Data Sheet
Parameter
DYNAMIC PERFORMANCE
Slew Rate
Rising
Falling
Gain Bandwidth Product
Unity-Gain Crossover
Phase Margin
−3 dB Closed-Loop Bandwidth
Total Harmonic Distortion + Noise
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Symbol
±SR
R
L
= 2 kΩ, A
V
= 1
ADA4610-1/ADA4610-2/ADA4610-4
Test Conditions/Comments
Min
Typ
Max
Unit
15
1
15
1
GBP
UGC
φ
M
−3 dB
THD + N
e
n
p-p
e
n
V
IN
= 5 mV p-p, R
L
= 2 kΩ, A
V
= 100
V
IN
= 5 mV p-p, R
L
= 2 kΩ, A
V
= 1
A
V
= 1, V
IN
= 5 mV p-p
1 kHz, A
V
= 1, R
L
= 2 kΩ, V
IN
= 1 V rms
0.1 Hz to 10 Hz
f = 10 Hz
f = 100 Hz
f = 1 kHz
f = 10 kHz
21
46
15.4
9.3
61
10.6
0.00025
0.45
14
8.20
7.30
7.30
V/µs
V/µs
MHz
MHz
Degrees
MHz
%
µV p-p
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
1
Guaranteed by design and characterization.
ELECTRICAL CHARACTERISTICS
V
SY
= ±15 V, V
CM
= 0 V, T
A
= 25°C, unless otherwise noted.
Table 3.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
B Grade (ADA4610-1/ADA4610-2)
A Grade
−40°C < T
A
< +125°C
Offset Voltage Drift
B Grade (ADA4610-1/ADA4610-2)
1
A Grade
1
(SOIC, MSOP, LFCSP)
A Grade
1
(SOT-23)
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
ADA4610-2
ADA4610-1/ADA4610-4
Input Capacitance
Differential
Common-Mode
Input Resistance
−40°C < T
A
< +125°C
V
CM
= 0 V
ΔV
OS
/ΔT
0.5
1
1
5
−40°C < T
A
< +125°C
I
OS
−40°C < T
A
< +125°C
CMRR
A
VO
V
CM
= −12.5 V to +12.5 V
−40°C < T
A
< +125°C
R
L
= 2 kΩ, V
OUT
= ±13.5 V
−40°C < T
A
< +125°C
−12.5
100
96
104
91
102
86
115
2
2
8
12
25
1.50
20
0.25
+12.5
µV/°C
µV/°C
µV/°C
pA
nA
pA
nA
V
dB
dB
dB
dB
dB
dB
pF
pF
Ω
Symbol
V
OS
0.2
−40°C < T
A
< +125°C
0.4
0.4
0.8
1
1.8
mV
mV
mV
mV
Test Conditions/Comments
Min
Typ
Max
Unit
I
B
107
104
V
CM
= 0 V
3.1
4.8
>10
13
Rev. I | Page 5 of 27
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