Wide Common-Mode Voltage Range: +12.8 V, –12 V
Differential Voltage Range: 62 V
High CMRR: 60 dB @ 4 MHz
Built-in Differential Clipping Level: 62.3 V
Fast Dynamic Performance
85 MHz Unity Gain Bandwidth
35 ns Settling Time to 0.1%
360 V/ms Slew Rate
Symmetrical Dynamic Response
Excellent Video Specifications
Differential Gain Error: 0.06%
Differential Phase Error: 0.088
15 MHz (0.1 dB) Bandwidth
Flexible Operation
High Output Drive of 650 mA min
Specified with Both 65 V and 615 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
PRODUCT 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
Difference Amplifier
AD830
CONNECTION DIAGRAM
8-Pin Plastic Mini-DIP (N),
Cerdip (Q) and SOIC (R) Packages
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 general purpose signal processing from dc to 10 MHz.
100
90
80
70
CMRR – dB
60
50
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
40
30
1k
Common-Mode Rejection Ratio vs. Frequency
FREQUENCY – Hz
VS = ±15V
VS = ±5V
1M100k10k
10M
Closed-Loop Gain vs. Frequency, Gain = +1
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700Fax: 617/326-8703
AD830–SPECIFICA TIONS
(VS = 615 V, R
= 150 V, C
LOAD
= 5 pF, TA = +258C unless otherwise noted)
LOAD
AD830J/AAD830S
1
ParameterConditionsMinTypMaxMinTypMaxUnits
DYNAMIC CHARACTERISTICS
3 dB Small Signal BandwidthGain = 1, V
0.1 dB Gain Flatness Frequency Gain = 1, V
= 100 mV rms75857585MHz
OUT
= 100 mV rms11151115MHz
OUT
Differential Gain Error0 to +0.7 V, Frequency = 4.5 MHz0.060.090.060.09%
Differential Phase Error0 to +0.7 V, Frequency = 4.5 MHz0.080.120.080.12Degrees
Slew Rate2 V Step, R
4 V Step, R
3 dB Large Signal BandwidthGain = 1, V
Settling Time, Gain = 1V
V
OUT
OUT
= 500 Ω360360V/µs
L
= 500 Ω350350V/µs
L
= 1 V rms38453845MHz
OUT
= 2 V Step, to 0.1%2525ns
= 4 V Step, to 0.1%3535ns
Harmonic Distortion2 V p-p, Frequency = 1 MHz–82–82dBc
2 V p-p, Frequency = 4 MHz–72–72dBc
Input Voltage NoiseFrequency = 10 kHz2727nV/√
Input Current Noise1.41.4pA/√Hz
DC PERFORMANCE
Offset VoltageGain = 1±1.5±3±1.5±3mV
Gain = 1, T
MIN–TMAX
±5±7mV
Open Loop GainDC64696469dB
Gain ErrorR
= 1 kΩ, G = ±1±0.1±0.6±0.1±0.6%
L
Peak Nonlinearity, RL= 1 kΩ,–1 V ≤ X ≤ +1 V0.010.030.010.03% FS
Gain = 1–1.5 V ≤ X ≤ +1.5 V0.0350.070.0350.07% FS
–2 V ≤ X ≤ +2 V0.150.40.150.4% FS
Input Bias CurrentV
Input Offset CurrentVIN = 0 V, T
= 0 V, +25°C to T
IN
V
= 0 V, T
IN
MIN
MIN–TMAX
MAX
510510µA
713817µA
0.110.11µA
INPUT CHARACTERISTICS
Differential Voltage RangeV
Differential Clipping Level
2
Common-Mode Voltage RangeV
= 0±2.0±2.0V
CM
Pins 1 and 2 Inputs Only±2.1±2.3±2.1±2.3V
= ±1 V–12.0+12.8–12.0+12.8V
DM
CMRRDC, Pins 1, 2, ±10 V9010090100dB
DC, Pins 1, 2, ±10 V, T
MIN–TMAX
8886dB
Frequency = 4 MHz55605560dB
Input Resistance370370kΩ
Input Capacitance22pF
Hz
OUTPUT CHARACTERISTICS
Output Voltage SwingR
≥ 1 kΩ±12+13.8, –13.8±12+13.8, –13.8V
L
RL ≥ 1 kΩ, ±16.5 V
S
±13+15.3, –14.7±13+15.3, –14.7V
Short Circuit CurrentShort to Ground±80±80mA
Output CurrentRL = 150 Ω±50±50mA
POWER SUPPLIES
Operating Range±4±16.5±4±16.5V
Quiescent CurrentT
MIN–TMAX
14.51714.517mA
+ PSRR (to VP)DC, G = 18686dB
– PSRR (to V
PSRRDC, G = 1, ±5 to ±15 V
PSRRDC, G = 1, ±5 to ±15 V
NOTES
1
See Standard Military Drawing 5962-9313001MPA for specifications.
2
Clipping level function on X channel only.
Specifications subject to change without notice.
)DC, G = 16868dB
N
S
,
T
MIN–TMAX
S
66716671dB
62686068dB
–2–
REV. A
AD830
(VS = 65 V, R
ParameterConditionsMinTypMaxMinTypMaxUnits
DYNAMIC CHARACTERISTICS
3 dB Small Signal BandwidthGain = 1, V
0.1 dB Gain Flatness Frequency Gain = 1, V
Differential Gain Error0 to +0.7 V, Frequency = 4.5 MHz,
Differential Phase Error0 to +0.7 V, Frequency = 4.5 MHz,
Slew Rate, Gain = 12 V Step, R
3 dB Large Signal BandwidthGain = 1, V
Settling TimeV
Harmonic Distortion2 V p-p, Frequency = 1 MHz–69–69dBc
Input Voltage NoiseFrequency = 10 kHz2727nV/√
Input Current Noise1.41.4pA/√Hz
DC PERFORMANCE
Offset VoltageGain = 1±1.5±3±1.5±3mV
Open Loop GainDC60656065dB
Unity Gain AccuracyR
Peak Nonlinearity, RL= 1 kΩ–1 V ≤ X ≤ +1 V0.010.030.010.03% FS
Input Bias CurrentV
Input Offset CurrentVIN = 0 V, T
INPUT CHARACTERISTICS
Differential Voltage RangeV
Differential Clipping Level
Common-Mode Voltage RangeV
CMRRDC, Pins 1, 2, +4 V to –2 V9010090100dB
Input Resistance370370kΩ
Input Capacitance22pF
OUTPUT CHARACTERISTICS
Output Voltage SwingR
Short Circuit CurrentShort to Ground–55, +70–55, +70mA
Output Current±40±40mA
= 150 V, C
LOAD
= 5 pF, TA = +258C unless otherwise noted)
LOAD
= 100 mV rms35403540MHz
OUT
= 100 mV rms56.556.5MHz
OUT
G = +20.140.180.140.18%
G = +20.320.40.320.4Degrees
= 500 Ω210210V/µs
L
4 V Step, RL = 500 Ω240240V/µs
= 1 V rms30363036MHz
OUT
= 2 V Step, to 0.1%3535ns
OUT
V
= 4 V Step, to 0.1%4848ns
OUT
2 V p-p, Frequency = 4 MHz–56–56dBc
Gain = 1, T
= 1 kΩ±0.1±0.6±0.1±0.6%
L
MIN–TMAX
–1.5 V ≤ X ≤ +1.5 V0.0450.070.0450.07% FS
–2 V ≤ X ≤ +2 V0.230.40.230.4% FS
= 0 V, +25°C to T
IN
V
= 0 V, T
IN
= 0±2.0±2.0V
2
CM
Pins 1 and 2 Inputs Only±2.0±2.2±2.0±2.2V
= ±1 V–2.0+2.9–2.0+2.9V
DM
MIN
MIN–TMAX
MAX
DC, Pins 1, 2, +4 V to –2 V,
T
MIN–TMAX
Frequency = 4 MHz55605560dB
≥ 150 Ω±3.2±3.5±3.2±3.5V
L
RL ≥ 150 Ω, ±4 V
S
AD830J/AAD830S
1
±4±5mV
510510µA
713817µA
0.110.11µA
8886dB
±2.2+2.7, –2.4±2.2+2.7, –2.4V
Hz
POWER SUPPLIES
Operating Range±4±16.5±4±16.5V
Quiescent CurrentT
+ PSRR (to V
)DC, G = 1, Offset8686dB
P
MIN–TMAX
13.51613.516mA
– PSRR (to VN)DC, G = 1, Offset6868dB
PSRR (Dual Supply)DC, G = 1, ±5 to ±15 V
S
66716671dB
PSRR (Dual Supply)DC, G = 1, ±5 to ±15 VS,
T
MIN–TMAX
NOTES
1
See Standard Military Drawing 5962-9313001MPA for specifications.
Lead Temperature Range (Soldering 60 seconds) . . . +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 and 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.
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.
ESD SUSCEPTIBILITY
ESD (electrostatic discharge) sensitive device. Electrostatic
charges as high as 4000 volts, which readily accumulate on the
human body and on test equipment, can discharge without detection. Although the AD830 features proprietary ESD protection circuitry, permanent damage may still occur on these
devices if they are subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid any performance degradation or loss of functionality.