Low Distortion, High Speed
Rail-to-Rail Input/Output Amplifier
AD8028-KGD-CHIP
Known Good Die
FEATURES
High speed
190 MHz, –3 dB bandwidth (G = +1)
100 V/µs slew rate
Low distortion
120 dBc @ 1 MHz SFDR
80 dBc @ 5 MHz SFDR
Selectable input crossover threshold
Low noise
4.3 nV/√Hz
1.6 pA/√Hz
Low offset voltage: 900 µV max
Low power: 6.5 mA/amplifier supply current
Disable mode
Wide supply range: 2.7 V to 12 V
Known good die (KGD): these die are fully guaranteed to
data sheet specifications
Many rail-to-rail input amplifiers have an input stage that switches
from one differential pair to another as the input signal crosses a
threshold voltage, which causes distortion. The AD8028-KGDCHIP has a unique feature that allows the user to select the
input crossover threshold voltage through the SELECT pin.
This feature controls the voltage at which the complementary
transistor input pairs switch. The AD8028-KGD-CHIP also has
intrinsically low crossover distortion. With its wide supply
voltage range (2.7 V to 12 V) and wide bandwidth (190 MHz),
the AD8028-KGD-CHIP amplifier is designed to work in a
variety of applications where speed and performance are needed on
low supply voltages. The AD8028-KGD-CHIP has a disable
mode that is controlled via the SELECT pin.
The AD8028-KGD-CHIP is rated to work over the industrial
temperature range of –40°C to +125°C.
Additional application and technical information can be found
in the AD8028 data sheet.
APPLICATIONS
Filters
ADC drivers
Level shifting
Buffering
Professional video
Low voltage instrumentation
GENERAL DESCRIPTION
The AD8028-KGD-CHIP1 is a high speed amplifier with rail-torail input and output that operates on low supply voltages and
is optimized for high performance and wide dynamic signal
range. The AD8028-KGD-CHIP has low noise (4.3 nV/√Hz,
1.6 pA/√Hz) and low distortion (120 dBc at 1 MHz). In
applications that use a fraction of or the entire input dynamic
range and require low distortion, the AD8028-KGD-CHIP is an
ideal choice.
Protected by U.S. patent numbers 6,486,737B1; 6,518,842B1
1
Rev. B
Document Feedback
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 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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
AD8028-KGD-CHIP
Known Good Die
TABLE OF CONTENTS
Features ...................................................................................... 1
ESD Caution .......................................................................... 6
Applications ............................................................................... 1
Pad Configuration and Function Descriptions .................... 7
General Description ................................................................. 1
Outline Dimensions ................................................................. 8
Revision History ....................................................................... 2
Die Specifications and Assembly Recommendations ...... 8
Specifications............................................................................. 3
Ordering Guide ..................................................................... 8
Absolute Maximum Ratings.................................................... 6
REVISION HISTORY
11/12—Rev. A to Rev. B
Changed AD8028-KGD-CHIPS to
AD8028-KGD-CHIP.......................................................... Universal
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 4
Changes to Table 3 ............................................................................ 5
9/12—Rev. 0 to Rev. A
Changes to Table 1 ........................................................................... 3
Changes to Table 2 ............................................................................ 4
Changes to Table 3 ............................................................................ 5
Updated Outline Dimensions ......................................................... 8
Changes to Ordering Guide ............................................................ 8
7/12—Revision 0: Initial Version
Rev. B | Page 2 of 8
Known Good Die
AD8028-KGD-CHIP
SPECIFICATIONS
VS = ±5 V at TA = 25°C, RL = 1 kΩ to midsupply, G = 1, unless otherwise noted.
Table 1.
Parameter
DYNAMIC PERFORMANCE
–3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Spurious-Free Dynamic Range (SFDR)
Input Voltage Noise
Input Current Noise
Differential Gain Error
Differential Phase Error
Crosstalk, Output to Output
DC PERFORMANCE
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Impedance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
SELECT PIN
Crossover Low, Selection Input Voltage
Crossover High, Selection Input Voltage
Disable Input Voltage
Disable Switching Speed
Test Conditions/Comments
Min
Typ
G = 1, VOUT = 0.2 V p-p
G = 1, VOUT = 2 V p-p
G = 2, VOUT = 0.2 V p-p
G = +1, VOUT = 2 V step/G = −1, VOUT = 2 V step
G = 2, VOUT = 2 V step
138
20
190
32
16
90/100
35
Short-Circuit Output
Off Isolation
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current/Amplifier
Quiescent Current (Disabled)
MHz
MHz
MHz
V/µs
ns
dBc
dBc
nV/√Hz
pA/√Hz
%
Degrees
dB
SELECT = three-state or open, PNP active
200
µV
SELECT = high NPN active
240
µV
TMIN to TMAX
VCM = 0 V, NPN active
TMIN to TMAX
VCM = 0 V, PNP active
TMIN to TMAX
VOUT = ±2.5 V
1.50
4
4
−8
−8
±0.1
110
VCM = ±2.5 V
6
2
−5.2 to 5.2
110
MΩ
pF
V
dB
−3.3 to +5
−3.9 to −3.3
−5 to −3.9
980
V
V
V
ns
45
ns
40/45
ns
Three-state < ±20 µA
50% of input to <10% of final VOUT
VIN = +6 V to −6 V, G = −1
−VS + 0.20
Sinking and Sourcing
VIN = 0.2 V p-p, f = 1 MHz, SELECT = low
30% overshoot
+VS − 0.06,
−Vs + 0.06
120
−49
20
2.7
6
Tested
−11
Tested
±0.9
Tested
+VS
Tested
µV/°C
µA
µA
µA
µA
µA
dB
V
mA
dB
pF
6.5
12
8.5
Tested
V
mA
0.8
3
Tested
mA
SELECT = low
−VS
1
GBD
GBD
120
80
4.3
1.6
0.1
0.2
−93
+VS
Power Supply Rejection Ratio
Status 1 Unit
fC = 1 MHz, VOUT = 2 V p-p, RF = 24.9 Ω
fC = 5 MHz, VOUT = 2 V p-p, RF = 24.9 Ω
f = 100 kHz
f = 100 kHz
NTSC, G = 2, RL = 150 Ω
NTSC, G = 2, RL = 150 Ω
G = 1, RL = 100 Ω, VOUT = 2 V p-p, VS = ±5 V @ 1 MHz
Enable Switching Speed
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time
(Rising/Falling Edge)
Output Voltage Swing
Max
−0.9
VS ± 1 V
−0.6
110
GBD is guaranteed by design.
Rev. B | Page 3 of 8
Tested
mA
dB
AD8028-KGD-CHIP
Known Good Die
VS = 5 V at TA = 25°C, RL = 1 kΩ to midsupply, unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
−3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Spurious-Free Dynamic Range (SFDR)
Input Voltage Noise
Input Current Noise
Differential Gain Error
Differential Phase Error
Crosstalk, Output to Output
DC PERFORMANCE
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Impedance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
SELECT PIN
Crossover Low, Selection Input Voltage
Crossover High, Selection Input Voltage
Disable Input Voltage
Disable Switching Speed
Test Conditions/Comments
Min
Off Isolation
Short-Circuit Current
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current/Amplifier
1
Max
Status 1 Unit
G = 1, VOUT = 0.2 V p-p
131
G = 1, VOUT = 2 V p-p
18
G = 2, VOUT = 0.2 V p-p
G = +1, VOUT = 2 V step/G = −1, VOUT = 2 V
step
G = 2, VOUT = 2 V step
185
28
12
85/100
40
ns
fC = 1 MHz, VOUT = 2 V p-p, RF = 24.9 Ω
fC = 5 MHz, VOUT = 2 V p-p, RF = 24.9 Ω
f = 100 kHz
f = 100 kHz
NTSC, G = 2, RL = 150 Ω
NTSC, G = 2, RL = 150 Ω
G = 1, RL = 100 Ω, VOUT = 2 V p-p,
VS = ±5 V @ 1 MHz
90
64
4.3
1.6
0.1
0.2
−92
dBc
dBc
nV/√Hz
pA/√Hz
%
Degrees
dB
SELECT = three-state or open, PNP
active
SELECT = high NPN active
200
800
Tested
µV
240
900
Tested
µV
TMIN to TMAX
VCM = 2.5 V, NPN active
TMIN to TMAX
VCM = 2.5 V, PNP active
TMIN to TMAX
VOUT = 1 V to 4 V
2
4
4
−8
−8
±0.1
105
µV/°C
µA
µA
µA
µA
µA
dB
VCM = 0 V to 2.5 V
6
2
−0.2 to +5.2
105
MΩ
pF
V
dB
1.7 to 5
1.1 to 1.7
0 to 1.1
1100
V
V
V
ns
50
ns
50/50
ns
Three-state < ±20 µA
50% of input to <10% of final VOUT
Enable Switching Speed
OUTPUT CHARACTERISTICS
Overdrive Recovery Time
(Rising/Falling Edge)
Output Voltage Swing
Typ
VIN = −1 V to +6 V, G = −1
RL = 1 kΩ
−Vs + 0.12
VIN = 0.2 V p-p, f = 1 MHz, SELECT = low
Sinking and sourcing
30% overshoot
+VS − 0.04,
−Vs + 0.04
−49
105
20
2.7
GBD
GBD
+Vs
V
dB
mA
pF
12
6
Tested
MHz
MHz
MHz
V/µs
GBD
V
mA
Quiescent Current (Disabled)
SELECT = low
320
µA
Power Supply Rejection Ratio
VS ± 1 V
105
dB
GBD is guaranteed by design.
Rev. B | Page 4 of 8
Known Good Die
AD8028-KGD-CHIP
VS = 3 V at TA = 25°C, RL = 1 kΩ to midsupply, unless otherwise noted.
Table 3.
Parameter
DYNAMIC PERFORMANCE
–3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Spurious-Free Dynamic Range (SFDR)
Input Voltage Noise
Input Current Noise
Differential Gain Error
Differential Phase Error
Crosstalk, Output to Output
DC PERFORMANCE
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Impedance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
SELECT PIN
Crossover Low, Selection Input
Voltage
Crossover High, Selection Input
Voltage
Disable Input Voltage
Disable Switching Speed
Enable Switching Speed
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time
(Rising/Falling Edge)
Output Voltage Swing
Short-Circuit Current
Off Isolation
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current/Amplifier
Quiescent Current (Disabled)
Power Supply Rejection Ratio
1
Test Conditions/Comments
Min
Typ
G = 1, VOUT = 0.2 V p-p
G = 1, VOUT = 2 V p-p
G = 2, VOUT = 0.2 V p-p
G = +1, VOUT = 2 V step/G = –1, VOUT = 2 V
step
G = 2, VOUT = 2 V step
125
19
180
29
10
73/100
Max
Status 1
Unit
GBD
GBD
MHz
MHz
MHz
V/µs
48
ns
fC = 1 MHz, VOUT = 2 V p-p, RF = 24.9 Ω
fC = 5 MHz, VOUT = 2 V p-p, RF = 24.9 Ω
f = 100 kHz
f = 100 kHz
NTSC, G = 2, RL = 150 Ω
NTSC, G = 2, RL = 150 Ω
G = 1, RL = 100 Ω, VOUT = 2 V p-p, VS = 3 V
@ 1 MHz
85
64
4.3
1.6
0.15
0.20
–89
dBc
dBc
nV/√Hz
pA/√Hz
%
Degrees
dB
SELECT = three-state or open, PNP
active
SELECT = high NPN active
TMIN to TMAX
VCM = 1.5 V, NPN active
TMIN to TMAX
VCM = 1.5 V, PNP active
TMIN to TMAX
200
µV
VOUT = 1 V to 2 V
240
2
4
4
–8
–8
±0.1
100
µV
µV/°C
µA
µA
µA
µA
µA
dB
RL = 1 kΩ
VCM = 0 V to 1.5 V
6
2
–0.2 to +3.2
100
MΩ
pF
V
dB
1.7 to 3
V
1.1 to 1.7
V
50% of input to <10% of final VOUT
0 to 1.1
1150
50
V
ns
ns
VIN = –1 V to +4 V, G = –1
55/55
ns
Three-state < ±20 µA
RL = 1 kΩ
–VS + 0.09
Sinking and sourcing
VIN = 0.2 V p-p, f = 1 MHz, SELECT =
low
30% overshoot
+VS – 0.03,
–Vs + 0.03
72
–49
+VS
Tested
mA
dB
20
2.7
SELECT = low
VS ± 1 V
GBD is guaranteed by design.
Rev. B | Page 5 of 8
pF
12
6.0
300
100
V
GBD
V
mA
µA
dB
AD8028-KGD-CHIP
Known Good Die
ABSOLUTE MAXIMUM RATINGS
ESD CAUTION
Table 4.
Parameter
Supply Voltage
Common-Mode Input Voltage
Differential Input Voltage
Storage Temperature
Operating Temperature Range
Junction Temperature
Rating
12.6 V
±VS ± 0.5 V
±1.8 V
–65°C to +125°C
–40°C to +125°C
150°C
Stresses above those listed under Absolute Maximum Ratings
may 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.
Rev. B | Page 6 of 8
Known Good Die
AD8028-KGD-CHIP
PAD CONFIGURATION AND FUNCTION DESCRIPTIONS
10
1
9
8
2
3
5
6
10787-003
7
4
ADI Logo
Figure 1.Pad Configuration
Table 5. Pad Function Descriptions
Pad No.
1
2
3
4
5
6
7
8
9
10
X-Axis
−326
−547
−590
−592
−286
+325
+593
+596
+324
+86
Y-Axis
+491
−212
−346
−490
−492
−489
−490
−350
+491
+492
Mnemonic
VOUTA
−IN A
+IN A
−VS
Disable Control/Select A
Disable Control/Select B
+IN B
−IN B
VOUTB
+VS
Rev. B | Page 7 of 8
Description
Output A.
Inverting Input A.
Noninverting Input A.
Negative Supply.
Disable Control/Select Mode A.
Disable Control/Select Mode B.
Noninverting Input B.
Inverting Input B
Output B.
Positive Supply.
AD8028-KGD-CHIP
Known Good Die
OUTLINE DIMENSIONS
1.415
10
1
9
1.205
8
2
3
7
5
6
TOP VIEW
(CIRCUIT SIDE)
0.076 × 0.076
08-23-2012-A
4
Figure 2. 10-Pad Bare Die [CHIP]
(C-10-3)
Dimensions shown in millimeters
DIE SPECIFICATIONS AND ASSEMBLY RECOMMENDATIONS
Table 6. Typical Die Specifications
Parameter
Chip Size
Scribe Line Width
Die Size
Thickness
Bond Pads (Min Size)
Bond Pad Composition
Backside
Passivation
ESD
Value
1420 × 1290
75
55.7 × 47.4
305
76 × 76
1% Copper Doped Aluminum
Si
Doped oxide/SiN
HBM 2000
Unit
µm
µm
Mil
µm
µm
%
Not Applicable
Not Applicable
V
Table 7. Assembly Recommendations
Assembly Component
Die Attach
Bonding Method
Recommendation
Ablestik 84-1LMIS R4
1 mil gold
ORDERING GUIDE
Model
AD8028-KGD-CHIP
Temperature Range
–40°C to +125°C
Package Description
10-Pad Bare Die
©2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D10787-0-11/12(B)
Rev. B | Page 8 of 8
Package Option
C-10-3