Analog Devices AD830 b Datasheet
High Speed, Video
9
–6
–21
100k 1G10M1M10k
–3
0
3
6
–18
–15
–12
–9
FREQUENCY – Hz
GAIN – dB
100M
VS = 5V
R
L
= 150
CL = 33pF
CL = 4.7pF
CL = 15pF
Difference Amplifier
AD830
FEATURES
Differential Amplification
Wide Common-Mode Voltage Range: +12.8 V, –12 V
Differential Voltage Range: 2 V
High CMRR: 60 dB @ 4 MHz
Built-In Differential Clipping Level: 2.3 V
Fast Dynamic Performance
85 MHz Unity Gain Bandwidth
35 ns Settling Time to 0.1%
360 V/s Slew Rate
Symmetrical Dynamic Response
Excellent Video Specifications
Differential Gain Error: 0.06%
Differential Phase Error: 0.08
15 MHz (0.1 dB) Bandwidth
Flexible Operation
High Output Drive of 50 mA Min
Specified with Both 5 V and 15 V Supplies
Low Distortion: THD = –72 dB @ 4 MHz
Excellent DC Performance: 3 mV Max Input
Offset Voltage
APPLICATIONS
Differential Line Receiver
High Speed Level Shifter
High Speed In-Amp
Differential to Single-Ended Conversion
Resistorless Summation and Subtraction
High Speed A/D Driver
GENERAL DESCRIPTION
The AD830 is a wideband, differencing amplifier designed for
use at video frequencies but also useful in many other applications. It accurately amplifies a fully differential signal at the
110
CONNECTION DIAGRAM
8-Lead Plastic PDIP (N),
CERDIP (Q) and SOIC (RN) Packages
1
X1
G
2
X2
3
Y1
4
Y2
M
G
M
NC = NO CONNECT
AD830
A = 1
C
V
8
P
7
OUT
6
NC
5
V
N
input and produces an output voltage referred to a user-chosen
level. The undesired common-mode signal is rejected, even at
high frequencies. High impedance inputs ease interfacing to
finite source impedances and thus preserve the excellent common-mode rejection. In many respects, it offers significant
improvements over discrete difference amplifier approaches, in
particular in high frequency common-mode rejection.
The wide common-mode and differential voltage range of the
AD830 make it particularly useful and flexible in level shifting
applications, but at lower power dissipation than discrete solutions. Low distortion is preserved over the many possible
differential and common-mode voltages at the input and output.
Good gain flatness and excellent differential gain of 0.06% and
phase of 0.08° make the AD830 suitable for many video system
applications. Furthermore, the AD830 is suited for generalpurpose signal processing from dc to 10 MHz.
100
90
80
70
CMRR – dB
60
50
REV. B
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. 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 companies.
40
30
1k
Figure 1. Common-Mode Rejection Ratio vs. Frequency
FREQUENCY – Hz
V
S
1M100k10k
= 5V
V
S
= 15V
10M
Figure 2. Closed-Loop Gain vs. Frequency, Gain = +1
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.
AD830–SPECIFICATIONS
(VS = 15 V, R
= 150 , C
LOAD
= 5 pF, TA = 25C, unless otherwise noted.)
LOAD
AD830J/AD830A AD830S
1
Parameter Conditions Min Typ Max Min Typ Max Unit
DYNAMIC CHARACTERISTICS
3 dB Small Signal Bandwidth Gain = +1, V
0.1 dB Gain Flatness Frequency Gain = +1, V
= 100 mV rms 75 85 75 85 MHz
OUT
= 100 mV rms 11 15 11 15 MHz
OUT
Differential Gain Error 0 V to 0.7 V, Frequency = 4.5 MHz 0.06 0.09 0.06 0.09 %
Differential Phase Error 0 V to 0.7 V, Frequency = 4.5 MHz 0.08 0.12 0.08 0.12 Degrees
Slew Rate 2 V Step, R
4 V Step, R
3 dB Large Signal Bandwidth Gain = +1, V
Settling Time, Gain = +1 V
V
OUT
OUT
= 500 Ω 360 360 V/µs
L
= 500 Ω 350 350 V/µs
L
= 1 V rms 38 45 38 45 MHz
OUT
= 2 V Step, to 0.1% 25 25 ns
= 4 V Step, to 0.1% 35 35 ns
Harmonic Distortion 2 V p-p, Frequency = 1 MHz –82 –82 dBc
2 V p-p, Frequency = 4 MHz –72 –72 dBc
Input Voltage Noise Frequency = 10 kHz 27 27 nV/√Hz
Input Current Noise 1.4 1.4 pA/√Hz
DC PERFORMANCE
Offset Voltage Gain = +1 ±1.5 ±3 ±1.5 ±3mV
Gain = +1, T
MIN
– T
MAX
±5 ±7mV
Open-Loop Gain DC 64 69 64 69 dB
Gain Error R
Peak Nonlinearity, R
= 1 kΩ, –1 V ≤ X ≤ +1 V 0.01 0.03 0.01 0.03 % FS
L
= 1 kΩ, G = ±1 ±0.1 ± 0.6 ±0.1 ±0.6 %
L
Gain = +1 –1.5 V ≤ X ≤ +1.5 V 0.035 0.07 0.035 0.07 % FS
–2 V ≤ X ≤ +2 V 0.15 0.4 0.15 0.4 % FS
Input Bias Current V
= 0 V, 25°C to T
IN
= 0 V, T
V
IN
Input Offset Current VIN = 0 V, T
MIN
MIN
– T
MAX
MAX
510 510µA
713 817µA
0.1 1 0.1 1 µA
INPUT CHARACTERISTICS
Differential Voltage Range V
Differential Clipping Level
2
Common-Mode Voltage Range V
= 0 ±2.0 ±2.0 V
CM
Pins 1 and 2 Inputs Only ±2.1 ±2.3 ±2.1 ±2.3 V
= ±1 V –12.0 +12.8 –12.0 +12.8 V
DM
CMRR DC, Pins 1, 2, ± 10 V 90 100 90 100 dB
DC, Pins 1, 2, ±10 V,
– T
T
MIN
MAX
88 86 dB
Frequency = 4 MHz 55 60 55 60 dB
Input Resistance 370 370 kΩ
Input Capacitance 2 2 pF
OUTPUT CHARACTERISTICS
Output Voltage Swing R
≥ 1 kΩ±12 +13.8, –13.8 ±12 +13.8, –13.8 V
L
≥ 1 kΩ, ± 16.5 V
R
L
S
±13 +15.3, –14.7 ±13 +15.3, –14.7 V
Short-Circuit Current Short to Ground ±80 ±80 mA
Output Current RL = 150 Ω±50 ±50 mA
POWER SUPPLIES
Operating Range ±4 ±16.5 ±4 ±16.5 V
Quiescent Current T
+ PSRR (to V
– PSRR (to V
) DC, G = +1 86 86 dB
P
) DC, G = +1 68 68 dB
N
MIN
– T
MAX
PSRR DC, G = +1, ±5 to ± 15 V
PSRR DC, G = +1, ±5 to ± 15 V
T
– T
MIN
MAX
NOTES
1
See Standard Military Drawing 5962-9313001MPA for specifications.
2
Clipping level function on X channel only.
Specifications subject to change without notice.
S
,
S
66 71 66 71 dB
62 68 60 68 dB
14.5 17 14.5 17 mA
REV. B–2–
AD830
SPECIFICATIONS
(VS = 5 V, R
= 150 , C
LOAD
= 5 pF, TA = +25C, unless otherwise noted.)
LOAD
AD830J/AD830A AD830S
1
Parameter Conditions Min Typ Max Min Typ Max Unit
DYNAMIC CHARACTERISTICS
3 dB Small Signal Bandwidth Gain = +1, V
0.1 dB Gain Flatness Frequency Gain = +1, V
Differential Gain Error 0 V to 0.7 V, Frequency = 4.5 MHz,
Gain = +2 0.14 0.18 0.14 0.18 %
Differential Phase Error 0 V to 0.7 V, Frequency = 4.5 MHz,
Gain = +2 0.32 0.4 0.32 0.4 Degrees
Slew Rate, Gain = +1 2 V Step, R
4 V Step, R
3 dB Large Signal Bandwidth Gain = +1, V
Settling Time V
= 2 V Step, to 0.1% 35 35 ns
OUT
V
= 4 V Step, to 0.1% 48 48 ns
OUT
Harmonic Distortion 2 V p-p, Frequency = 1 MHz –69 –69 dBc
2 V p-p, Frequency = 4 MHz –56 –56 dBc
Input Voltage Noise Frequency = 10 kHz 27 27 nV/√Hz
Input Current Noise 1.4 1.4 pA/√Hz
DC PERFORMANCE
Offset Voltage Gain = +1 ±1.5 ±3 ±1.5 ±3mV
Gain = +1, T
Open-Loop Gain DC 60 65 60 65 dB
Unity Gain Accuracy R
Peak Nonlinearity, R
= 1 kΩ –1 V ≤ X ≤ +1 V 0.01 0.03 0.01 0.03 % FS
L
= 1 kΩ±0.1 ±0.6 ± 0.1 ± 0.6 %
L
–1.5 V ≤ X ≤ +1.5 V 0.045 0.07 0.045 0.07 % FS
–2 V ≤ X ≤ +2 V 0.23 0.4 0.23 0.4 % FS
Input Bias Current V
= 0 V, 25°C to T
IN
= 0 V, T
V
IN
Input Offset Current VIN = 0 V, T
INPUT CHARACTERISTICS
Differential Voltage Range V
Differential Clipping Level
2
Common-Mode Voltage Range V
= 0 ±2.0 ±2.0 V
CM
Pins 1 and 2 Inputs Only ±2.0 ±2.2 ± 2.0 ±2.2 V
= ±1 V –2.0 +2.9 –2.0 +2.9 V
DM
CMRR DC, Pins 1, 2, +4 V to –2 V 90 100 90 100 dB
DC, Pins 1, 2, +4 V to –2 V,
– T
T
MIN
Frequency = 4 MHz 55 60 55 60 dB
Input Resistance 370 370 kΩ
Input Capacitance 2 2 pF
OUTPUT CHARACTERISTICS
Output Voltage Swing R
≥ 150 Ω±3.2 ±3.5 ± 3.2 ±3.5 V
L
≥ 150 Ω, ± 4 V
R
L
Short-Circuit Current Short to Ground –55, +70 –55, +70 mA
Output Current ±40 ±40 mA
POWER SUPPLIES
Operating Range ±4 ±16.5 ±4 ±16.5 V
Quiescent Current T
+ PSRR (to V
– PSRR (to V
) DC, G = +1, Offset 86 86 dB
P
) DC, G = +1, Offset 68 68 dB
N
MIN
– T
PSRR (Dual-Supply) DC, G = +1, ±5 to ±15 V
PSRR (Dual-Supply) DC, G = +1, ±5 to ±15 V
T
– T
MIN
NOTES
1
See Standard Military Drawing 5962-9313001MPA for specifications.
2
Clipping level function on X channel only.
Specifications subject to change without notice.
= 100 mV rms 35 40 35 40 MHz
OUT
= 100 mV rms 5 6.5 5 6.5 MHz
OUT
= 500 Ω 210 210 V/µs
L
= 500 Ω 240 240 V/µs
L
= 1 V rms 30 36 30 36 MHz
OUT
MAX
MAX
MAX
MIN
MIN
MIN
– T
– T
S
MAX
MAX
MAX
510 510µA
713 817µA
0.1 1 0.1 1 µA
88 86 dB
±2.2 –2.4, +2.7 ±2.2 –2.4, +2.7 V
13.5 16 13.5 16 mA
S
,
S
66 71 66 71 dB
62 68 60 68 dB
±4 ±5mV
REV. B
–3–
AD830
ABSOLUTE MAXIMUM RATINGS
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Internal Power Dissipation
2
. . . . . . . .Observe Derating Curves
1
Output Short-Circuit Duration . . . . . Observe Derating Curves
Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . ±V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . ± V
S
S
Storage Temperature Range (Q) . . . . . . . . . . –65°C to +150°C
Storage Temperature Range (N) . . . . . . . . . . –65°C to +125°C
Storage Temperature Range (RN) . . . . . . . . . –65°C to +125°C
Operating Temperature Range
AD830J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
AD830A . . . . . . . . . . . . . . . . . . . . . . . . . . . .–40°C to +85°C
AD830S . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . . . 300°C
NOTES
1
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.
2
8-Lead PDIP Package: JA = 90°C/W.
8-Lead SOIC Package: JA = 155°C/W.
8-Lead CERDIP Package: JA = 110°C/W.
ORDERING GUIDE
Model Temperature Range Package Description Package Option
AD830AN –40°C to +85°C 8-Lead PDIP N-8
AD830JR 0°C to +70°C 8-Lead SOIC RN-8
5962-9313001MPA* –55°C to +125°C 8-Lead CERDIP Q-8
AD830AR –40°C to +85°C 8-Lead SOIC RN-8
AD830AR-REEL –40°C to +85°C 8-Lead SOIC RN-8
AD830AR-REEL7 –40°C to +85°C 8-Lead SOIC RN-8
AD830JR-REEL 0°C to 70°C 8-Lead SOIC RN-8
AD830JR-REEL7 0°C to 70°C 8-Lead SOIC RN-8
*See Standard Military Drawing 5962-9313001 MPA for specifications.
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by the AD830
is limited by the associated rise in junction temperature. For the
plastic packages, the maximum safe junction temperature is
145°C. For the CERDIP, the maximum junction temperature is
175°C. If these maximums are exceeded momentarily, proper
circuit operation will be restored as soon as the die temperature
is reduced. Leaving the AD830 in the overheated condition for
an extended period can result in permanent damage to the
device. To ensure proper operation, it is important to observe
the recommended derating curves.
While the AD830 output is internally short-circuit protected,
this may not be sufficient to guarantee that the maximum junction temperature is not exceeded under all conditions. If the
output is shorted to a supply rail for an extended period, then
the amplifier may be permanently destroyed.
2.5
TJ MAX = 145C
2.0
1.5
1.0
0.5
TOTAL POWER DISSIPATION – W
0
–30
–50
AMBIENT TEMPERATURE – C
8-LEAD PDIP
8-LEAD SOIC
70503010–10
Figure 3. Maximum Power Dissipation vs.
Temperature, PDIP and SOIC Packages
90
3.0
2.8
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
TOTAL POWER DISSIPATION – W
0.6
0.4
0.2
–60
8-LEAD CERDIP
–40
AMBIENT TEMPERATURE – C
Figure 4. Maximum Power Dissipation vs.
Temperature, CERDIP Package
CAUTION
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 the
AD830 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.
TJ MAX = 175C
100 120806040200–20
140
REV. B–4–
Typical Performance Characteristics–
AD830
110
100
90
80
70
CMRR – dB
60
50
40
30
1k
FREQUENCY – Hz
V
= 5V
S
1M100k10k
V
S
= 15V
10M
TPC 1. Common-Mode Rejection Ratio vs. Frequency
–50
V
= 2V p-p
OUT
= 150
R
L
GAIN = +1
–60
–70
15V SUPPLIES
–80
HARMONIC DISTORTION – dBc
–90
SECOND HARMONIC
THIRD HARMONIC
10k 10M1M100k1k
FREQUENCY – Hz
5V SUPPLIES
SECOND HARMONIC
THIRD HARMONIC
TPC 2. Harmonic Distortion vs. Frequency
100
90
TO VP @ 5V
80
TO VN @ 15V
70
60
TO VN @ 5V
50
PSRR – dB
40
30
20
10
1k
TO VP @ 15V
FREQUENCY – Hz
1M100k10k
10M
TPC 4. Power Supply Rejection Ratio vs. Frequency
3
0
–3
–6
–9
–12
GAIN – dB
–15
–18
–21
–24
–27
RL = 150
C
= 4.7pF
L
10V
100k 100M10M1M10k
FREQUENCY – Hz
15V
5V
1G
TPC 5. Closed-Loop Gain vs. Frequency G = +1
REV. B
9
8
7
6
5
INPUT CURRENT – A
4
3
–40
–60
JUNCTION TEMPERATURE – C
120806040 100200–20
TPC 3. Input Bias Current vs. Temperature
140
–5–
3
5V
2
1
0
–1
–2
INPUT OFFSET VOLTAGE – mV
–3
–4
–40
–60
S
10V
S
JUNCTION TEMPERATURE – C
15V
S
120100806040200–20
TPC 6. Input Offset Voltage vs. Temperature
140
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