Offset voltage: 2.2 mV max
Low input bias current: 1 pA max
Single-supply operation: 1.8 V to 5 V
Low noise: 22 nV/√Hz
Micropower: 38 μA
No phase reversal
Unity gain stable
APPLICATIONS
Battery-powered instrumentation
Multipole filters
Current shunt sense
Sensors
ADC predrivers
DAC drivers/level shifters
Low power ASIC input or output amplifiers
GENERAL DESCRIPTION
The AD8613/AD8617/AD8619 are single, dual, and quad
micropower, rail-to-rail input and output amplifiers that feature
low supply current, low input voltage, and low current noise.
The parts are fully specified to operate from 1.8 V to 5.0 V
ingle supply, or ±0.9 V and ±2.5 V dual supply. The combination
s
of low noise, very low input bias currents, and low power
consumption make the AD8613/AD8617/AD8619 especially
useful in portable and loop-powered instrumentation.
The ability to swing rail-to-rail at both the input and output
bles designers to buffer CMOS ADCs, DACs, ASICs, and
ena
other wide output swing devices in low power, single-supply
systems.
The AD8613 is available in a 5-lead SC70 package and a 5-lead
TSOT
-23 package. The AD8617 is available in 8-lead MSOP
and 8-lead SOIC packages. The AD8619 is available in 14-lead
TSSOP and 14-lead SOIC packages.
AD8613/AD8617/AD8619
PIN CONFIGURATIONS
14
13
12
11
10
5
4
8
7
6
5
8
7
6
5
14
13
12
11
10
9
8
V+
OUT B
–IN B
+IN B
9
8
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
V+
–IN
V+
OUT B
–IN B
+IN B
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
05622-037
05622-001
05622-002
05622-035
05622-036
1
OUT
+IN
V–
AD8613
TOP VIEW
2
(Not to Scale)
3
Figure 1. 5-Lead SC70 and 5-Lead TSOT-23
1
OUT A
–IN A
+IN A
V–
AD8617
2
TOP VIEW
3
(Not toScale)
4
Figure 2. 8-Lead MSOP
1
OUT A
–IN A
+IN A
V–
AD8617
2
3
TOP VIEW
(Not to Scale)
4
Figure 3. 8-Lead SOIC_N
1
OUT A
2
–IN A
3
+IN A
V+
+IN B
–IN B
OUT B
AD8619
TOP VIEW
4
(Not to Scale)
5
6
7
Figure 4. 14-Lead TSSOP
OUT A
1
2
–IN A
+IN A
3
AD8619
TOP VIEW
V+
4
(Not to Scale)
+IN B
5
6
–IN B
OUT B
7
Figure 5. 14-Lead SOIC_N
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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.
Trademarks and registered trademarks are the property of their respective owners.
Changes to Ordering Guide.......................................................... 13
9/05—Revision 0: Initial Version
Rev. B | Page 2 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
SPECIFICATIONS
Electrical characteristics @ VS = 5 V, VCM = VS/2, TA = 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage VOS −0.3 V < VCM < +5.3 V 0.4 2.2 mV
−40°C < TA < +125°C, −0.3 V < VCM < +5.2 V 2.2 mV
Offset Voltage Drift VOS/T −40°C < TA < +125°C 1 4.5 µV/°C
AD8613 2.5 7.0 µV/°C
Input Bias Current IB 0.2 1 pA
−40°C < TA < +85°C 110 pA
−40°C < TA < +125°C 780 pA
Input Offset Current IOS 0.1 0.5 pA
−40°C < TA < +85°C 50 pA
−40°C < TA < +125°C 250 pA
Common-Mode Rejection Ratio CMRR 0 V < VCM < 5 V 95 dB
−40°C < TA < +125°C 68 dB
Large Signal Voltage Gain AVO R
Input Capacitance C
C
OUTPUT CHARACTERISTICS
Output Voltage High VOH I
−40°C to +125°C 4.9 V
I
−40°C to +125°C 4.50 V
Output Voltage Low VOL I
−40°C to +125°C 50 mV
I
−40°C to +125°C 335 mV
Short-Circuit Current ISC ±80 mA
Closed-Loop Output Impedance Z
POWER SUPPLY
Power Supply Rejection Ratio PSRR 1.8 V < VS < 5 V 67 94 dB
−40°C < TA < +125°C 64 dB
Supply Current/Amplifier ISY V
−40°C <TA < +125°C 50 µA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 10 kΩ 0.1 V/µs
Settling Time 0.1% t
Gain Bandwidth Product GBP RL = 100 kΩ 400 kHz
R
Phase Margin ØO R
NOISE PERFORMANCE
Peak-to-Peak Noise 2.3 3.5 µV
Voltage Noise Density en f = 1 kHz 25 nV/√Hz
f = 10 kHz 22 nV/√Hz
Current Noise Density in f = 1 kHz 0.05 pA/√Hz
1.9 pF
DIFF
2.5 pF
CM
f = 10 kHz, AV = 1 15 Ω
OUT
S
= 10 kΩ, 0.5 V < VO < 4.5 V 235 500 V/mV
L
= 1 mA 4.95 4.98 V
L
= 10 mA 4.7 V
L
= 1 mA 20 30 mV
L
= 10 mA 190 275 mV
L
= VS/2 38 µA
O
G = ±1, 2 V step, CL = 20 pF, RL = 1 kΩ 23 s
= 10 kΩ 350 kHz
L
= 10 kΩ, RL = 100 kΩ, CL = 20 pF 70 Degrees
L
Rev. B | Page 3 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
Electrical characteristics @ VS = 1.8 V, VCM = VS/2, TA = 25°C, unless otherwise noted.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage VOS −0.3 V < VCM < +1.9 V 0.4 2.2 mV
−0.3 V < VCM < +1.8 V; −40°C < TA < +125°C 2.2 mV
Offset Voltage Drift VOS/T −40°C < TA < +125°C 1 8.5 µV/°C
AD8613 3.7 9.0 µV/°C
Input Bias Current IB 0.2 1 pA
−40°C < TA < +85°C 110 pA
−40°C < TA < +125°C 780 pA
Input Offset Current IOS 0.1 0.5 pA
−40°C < TA < +85°C 50 pA
−40°C < TA < +125°C 250 pA
Common-Mode Rejection Ratio CMRR 0 V < VCM < 1.8 V 58 86 dB
−40°C < TA < +125°C 55 dB
Large Signal Voltage Gain AVO R
Input Capacitance C
C
OUTPUT CHARACTERISTICS
Output Voltage High VOH I
−40°C to +125°C 1.6 V
Output Voltage Low VOL I
−40°C to +125°C 80 mV
Short-Circuit Current ISC ±7 mA
Closed-Loop Output Impedance Z
POWER SUPPLY
Power Supply Rejection Ratio PSRR 1.8 V < VS < 5 V 67 94 dB
Supply Current/Amplifier ISY V
−40°C <TA < +125°C 50 µA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 10 kΩ 0.1 V/µs
Settling Time 0.1% t
Gain Bandwidth Product GBP RL = 100 kΩ 400 kHz
R
Phase Margin ØO R
NOISE PERFORMANCE
Peak-to-Peak Noise 2.3 3.5 µV
Voltage Noise Density en f = 1 kHz 25 nV/√Hz
f = 10 kHz 22 nV/√Hz
Current Noise Density in f = 1 kHz 0.05 pA/√Hz
2.1 pF
DIFF
3.8 pF
CM
f = 10 kHz, AV = 1 15 Ω
OUT
S
= 10 kΩ, 0.5 V < VO < 1.3 V 85 1000 V/mV
L
= 1 mA 1.65 1.73 V
L
= 1 mA 44 60 mV
L
= VS/2 38 µA
O
G = ±1, 1 V step, CL = 20 pF, RL = 1 kΩ 6.5 µs
= 10 kΩ 350 kHz
L
= 10 kΩ, RL = 100 kΩ, CL = 20 pF 70 Degrees
L
Rev. B | Page 4 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Parameter Rating
Supply Voltage 6 V
Input Voltage VSS − 0.3 V to VDD + 0.3 V
Differential Input Voltage ±6 V
Output Short-Circuit Duration to GND Observe derating curve
Storage Temperature Range −65°C to +150°C
Lead Temperature (Soldering, 60 sec) 300°C
Operating Temperature Range −40°C to +125°C
Junction Temperature Range −65°C to +150°C
Stresses above those listed under Absolute Maximum Ratings
ma
y cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Absolute maximum ratings apply at 25°C, unless otherwise
d.
note
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. B | Page 5 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
TYPICAL PERFORMANCE CHARACTERISTICS
VSY = 5 V or ±2.5 V, unless otherwise noted.
NUMBER OF AMPLIFIERS
1800
1600
1400
1200
1000
800
600
400
200
VSY = 5.5V
–0.5V < V
T
0
–2000
A
= 25°C
–1700
< +5.5V
CM
–800
–500
–1100
–1400
INPUT OFFSET VOLTAGE (μV)
–200
100
Figure 6. Input Offset Voltage Distribution
400
700
1000
1300
1600
05622-003
1900
400
VSY = 5V AND 1.8V
350
300
250
200
150
100
INPUT BIAS CURRENT (pA)
50
0
25150
5075100125
TEMPERATURE (°C)
Figure 9. Input Bias Current vs. Temperature
05622-006
40
35
30
25
20
15
NUMBER OF AMPLIFIERS
10
5
0
010
123456789
TCVOS (μV/°C)
–40°C < TA < 125°C
V
= 2.5V
CM
05622-004
Figure 7. Input Offset Voltage Drift Distribution
2000
1500
1000
500
0
–500
VSY = 5V
T
= 25°C
A
50
TA = 25°C
40
30
20
10
0
05
1234
Figure 10. Supply Current vs. Supply Voltage
50
VSY = ±2.5V,±1.35V, ±0.9V
40
30
20
SUPPLY VOLTAGE (V)
05622-007
–1000
INPUT OFFSET VOLTAGE (μV)
–1500
–2000
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
–0.55.5
INPUT COMMON-MODE VOLTAGE (V)
Figure 8. Input Offset Voltage vs. Input Common-Mode Voltage
05622-005
10
SUPPLY CURRENT/AMPLIFIER (μA)
0
–40
–10205080110
TEMPERATURE (°C)
Figure 11. Supply Current vs. Temperature
Rev. B | Page 6 of 16
05622-008
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
1k
VSY = 5V
T
= 25ºC
A
100
10
1
0.1
OUTPUT SATURATION VOLTAGE (mV)
0.01
0.00110
0.010.11
SOURCE
LOAD CURRENT (mA)
VSY– V
OH
SINK
V
OL
Figure 12. Output Saturation Voltage vs. Load Current
05622-009
60
50
40
30
20
10
OPEN-LOOP GAIN (dB)
0
VSY = ±2.5V AND ±0.9V
–10
R
= 100kΩ
L
= 20pF
C
L
–20
1k1M
10k100k
FREQUENCY (Hz)
Figure 15. Open-Loop Gain and Phase vs. Frequency
135
90
45
φ
M
0
OPEN-LOOP PHASE SHIFT (Degrees)
–45
05622-012
40
VSY = 5V
30
20
10
OUTPUT SATURATION VOLTAGE (mV)
0
–40125
VSY– VOH @ 1mA
VOL @ 1mA
–25–105 203550658095110
TEMPERATURE (°C)
Figure 13. Output Saturation Voltage vs. Temperature
= 1 mA)
(I
L
350
VSY = 5V
300
250
200
150
100
VDD– VOH @ 10mA
VOL @ 10mA
05622-010
120
100
80
60
CMRR (dB)
40
20
0
1001M
1k10k
FREQUENCY (Hz)
VSY = 5V AND 2.7V
T
= 25°C
A
100k
Figure 16. CMRR vs. Frequency
120
VSY = ±2.5V AND ±1.35V
T
= 25°C
A
100
80
60
PSRR (dB)
40
05622-013
50
OUTPUT SATURATION VOLTAGE (mV)
0
–25–105 203550658095110
–40125
TEMPERATURE (°C)
Figure 14. Output Saturation Voltage vs. Temperature
(I
= 10 mA)
L
05622-011
20
0
1001M
1k10k100k
Figure 17. PSRR vs. Frequency
Rev. B | Page 7 of 16
FREQUENCY (Hz)
05622-014
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
1k
AV = 100
)
100
Ω
AV = 10
10
OUTPUT IMPEDANCE (
1
AV = 1
VOLTAGE (1V/DIV)
VSY = 5V
A
= 1
V
= 10kΩ
R
L
= 200pF
C
L
0
1001M
Figure 18. Closed-Loop Outpu
50
VSY = 5V
T
= 25°C
A
45
40
35
30
25
20
15
10
SMALL SIGNAL OVERSHOOT (%)
5
0
101000
1k10k100k
FREQUENCY (Hz)
t Impedance vs. Frequency
+OS
100
LOAD CAPACITANCE (pF)
VSY = 5V AND 1.8V
–OS
Figure 19. Small Signal Overshoot vs. Load Capacitance
VSY = 5V, 2.7V, 1.8V
= 1
A
V
= 10kΩ
R
L
= 200pF
C
L
05622-015
05622-016
(V)V
V
(mV)
(V)V
V
OUT
–2.5
100
IN
2.5
OUT
TIME (20μs/DIV)
Figure 21. Large Signal Transient Response
0
0
TIME (20μs/DIV)
Figure 22. Positive Overload Recovery
0
VSY = ±2.5V
= –50
A
V
VSY = ±2.5V
A
= –50
V
05622-018
05622-019
0
VOLTAGE (50mV/DIV)
TIME (4μs/DIV)
Figure 20. Small Signal Transient Response
05622-017
(mV)
IN
–100
Figure 23. Negative Overload Recovery
Rev. B | Page 8 of 16
TIME (20μs/DIV)
05622-020
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
Hz)
√
1000
100
VSY = 5V
T
= 25ºC
A
V
IN
V
OUT
VOLTAGE (1V/DIV)
VSY = ±2.5V
= 1
A
V
= 10kΩ
R
L
V
= 6V p-p
IN
TIME (20μs/DIV)
Figure 24. No Phase Reversal
VSY = 5V AND 2.7V
VOLTAGE NOISE (1μV/DIV)
TIME (1s/DIV)
Figure 25. 0.1 Hz to 10 Hz Input Voltage Noise
05622-021
05622-022
10
INPUT VOLTAGE NOISE (nV/
1
110000
1/F CORNER @ 100Hz
101001000
FREQUENCY (Hz)
Figure 26. Voltage Noise Density
140
120
100
80
60
40
CHANNEL SEPARATION (dB)
20
0
1001M
1k10k100k
FREQUENCY (Hz)
Figure 27. Channel Separation
05622-023
VSY = 5V
05622-024
Rev. B | Page 9 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
VS = 1.8 V or ±0.9 V, unless otherwise noted.
NUMBER OF AMPLIFIERS
450
VSY = 1.8V
0V < V
< 1.8V
0
T
= 25°C
A
–2000
CM
–1700
–800
–500
–1100
–1400
INPUT OFFSET VOLTAGE (μV)
–200
400
350
300
250
200
150
100
50
Figure 28. Input Offset Voltage Distribution
100
400
700
1000
1300
1600
05622-025
1900
80
VSY = 1.8V
60
VSY–VOH @ 1mA
40
20
OUTPUT SATURATION VOLTAGE (mV)
0
–40125
–25–105 203550658095110
TEMPERATURE (°C)
VOH @ 1mA
Figure 31. Output Saturation Voltage vs. Temperature
= 1 mA)
(I
L
05622-028
2000
VSY = 1.8V
= 25°C
T
A
1500
1000
500
0
–500
–1000
INPUT OFFSET VOLTAGE (μV)
–1500
–2000
–0.5
–0.2 0.10.40.71.01.31.61.9
INPUT COMMON-MODE VOLTAGE (V)
2.2
Figure 29. Input Offset Voltage vs. Input Common-Mode Voltage
1000
VSY = 1.8V
= 25ºC
T
A
100
10
1
0.1
OUTPUT SATURATION VOLTAGE (mV)
0.01
0.00110
SOURCE
0.010.11
VSY–V
OH
SINK
V
OL
LOAD CURRENT (mA)
Figure 30. Output Saturation Voltage vs. Load Current
05622-026
05622-027
100
VSY = 1.8V
T
= 25°C
A
80
60
CMRR (dB)
40
20
0
1001M
1k10k100k
FREQUENCY (Hz)
Figure 32. CMRR vs. Frequency
120
VSY = 1.8V
= 25°C
T
A
100
80
60
PSRR (dB)
40
20
0
1001M
1k
FREQUENCY (Hz)
10k
Figure 33. PSRR vs. Frequency
05622-029
05622-030
Rev. B | Page 10 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
40
30
VSY = 1.8V
= 25°C
T
A
VSY = 1.8V
20
10
SMALL SIGNAL OVERSHOOT (%)
0
101k
LOAD CAPACITANCE (pF)
100
–OS
+OS
Figure 34. Small Signal Overshoot vs. Load Capacitance
VSY = 1.8V
= 1
A
V
= 10kΩ
R
L
C
= 200pF
L
VOLTAGE (500mV/DIV)
TIME (20μs/DIV)
Figure 35. Large Signal Transient Response
05622-031
05622-032
VOLTAGE (1μV/DIV)
TIME (1s/DIV)
Figure 36. 0.1 Hz to 10 Hz Input Voltage Noise
1k
VSY = 1.8V
T
= 25°C
A
Hz)
√
100
10
INPUT VOLTAGE NOISE (nV/
1
110k
1/F CORNER @ 100Hz
101001k
FREQUENCY (Hz)
Figure 37. Voltage Noise Density
05622-033
05622-034
Rev. B | Page 11 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
OUTLINE DIMENSIONS
3.20
3.00
2.80
8
5
4
SEATING
PLANE
5.15
4.90
4.65
1.10 MAX
0.23
0.08
8°
0°
3.20
3.00
1
2.80
PIN 1
0.65 BSC
0.95
0.85
0.75
0.15
0.38
0.00
0.22
COPLANARITY
0.10
COMPLIANT TO JEDEC STANDARDS MO-187-AA
Figure 38. 8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dim
ensions shown in millimeters
0.80
0.60
0.40
5.00 (0.1968)
4.80 (0.1890)
4.00 (0.1574)
3.80 (0.1497)
0.25 (0.0098)
0.10 (0.0040)
COPLANARITY
0.10
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
85
1.27 (0.0500)
BSC
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MS-012-AA
Figure 40. 8-Lead Standard Small Outline Package [SOIC_N]
Dimensions shown in millimeters and (inches)
6.20 (0.2440)
5.80 (0.2284)
41
1.75 (0.0688)
1.35 (0.0532)
0.51 (0.0201)
0.31 (0.0122)
Narrow B
0.25 (0.0098)
0.17 (0.0067)
ody (R-8)
0.50 (0.0196)
0.25 (0.0099)
8°
1.27 (0.0500)
0°
0.40 (0.0157)
× 45°
8.75 (0.3445)
8.55 (0.3366)
4.00 (0.1575)
3.80 (0.1496)
0.25 (0.0098)
0.10 (0.0039)
COPLANARITY
0.10
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
14
1
1.27 (0.0500)
BSC
0.51 (0.0201)
0.31 (0.0122)
COMPLIANT TO JEDEC STANDARDS MS-012-AB
8
6.20 (0.2441)
7
5.80 (0.2283)
SEATING
PLANE
1.75 (0.0689)
1.35 (0.0531)
0.25 (0.0098)
0.17 (0.0067)
0.50 (0.0197)
0.25 (0.0098)
8°
0°
1.27 (0.0500)
0.40 (0.0157)
Figure 39. 14-Lead Standard Small Outline Package [SOIC_N]
Narrow B
ody (R-14)
Dimensions shown in millimeters and (inches)
× 45°
5.10
5.00
4.90
14
4.50
4.40
4.30
PIN 1
1.05
1.00
0.80
0.65
BSC
0.15
0.05
COMPLIANT TO JEDEC STANDARDS MO-153-AB-1
0.30
0.19
8
6.40
BSC
71
1.20
MAX
SEATING
PLANE
0.20
0.09
COPLANARITY
0.10
8°
0°
0.75
0.60
0.45
Figure 41. 14-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-14)
Dimensions shown in millimeters
Rev. B | Page 12 of 16
AD8613/AD8617/AD8619
www.BDTIC.com/ADI
1.35
1.25
1.15
PIN 1
1.00
0.90
0.70
0
.
1
0
A
M
X
0.10 COPLANARITY
Figure 42. 5-L
2.20
2.00
1.80
2.40
45
123
0.30
0.15
COMPLIANT TO JEDEC STANDARDS MO-203-AA
2.10
1.80
0.65 BSC
1.10
0.80
SEATING
PLANE
0.40
0.10
0.22
0.08
ead Thin Shrink Small Outline Transistor Package [SC70]
(KS-5)
Dimensions shown in millimeters
0.46
0.36
0.26
1.60 BSC
PIN 1
*
0.90
0.87
0.84
0.10 MAX
Figure 43. 5-Lead Thin Small Outline Transistor Package [TSOT-23]
2.90 BSC
54
2.80 BSC
123
0.95 BSC
1.90
BSC
*
1.00 MAX
0.50
SEATING
PLANE
0.30
*
COMPLIANT TO JEDEC STANDARDS MO-193-AB WITH
THE EXCEPTION OF PACKAGE HEIGHT AND THICKNESS.
0.20
0.08
8°
4°
0°
(UJ-5)
Dim
ensions shown in millimeters
0.60
0.45
0.30
ORDERING GUIDE
Model Temperature Range Package Description Package Option Branding