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PDF OPA832 Data sheet ( Hoja de datos )
| Número de pieza | OPA832 | |
| Descripción | Low-Power / Single-Supply / Fixed-Gain Video Buffer Amplifier | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
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OPA832
SBOS266B − JUNE 2003 − REVISED SEPTEMBER 2004
Low-Power, Single-Supply, Fixed-Gain
Video Buffer Amplifier
FEATURES
D HIGH BANDWIDTH: 80MHz (G = +2)
D LOW SUPPLY CURRENT: 3.9mA
D FLEXIBLE SUPPLY RANGE:
+2.8V to +11V Single Supply
±1.4V to ±5.5V Dual Supply
D INPUT RANGE INCLUDES GROUND ON
SINGLE SUPPLY
D 4.9VPP OUTPUT SWING ON +5V SUPPLY
D HIGH SLEW RATE: 350V/µsec
D LOW INPUT VOLTAGE NOISE: 9.3nV/√Hz
D AVAILABLE IN AN SOT23 PACKAGE
APPLICATIONS
D SINGLE-SUPPLY VIDEO LINE DRIVERS
D CCD IMAGING CHANNELS
D LOW-POWER ULTRASOUND
D PORTABLE CONSUMER ELECTRONICS
Video DAC
976Ω
VI
80.6Ω
+3.3V
OPA832
400Ω
400Ω
75Ω
VO
75Ω Load
VO
= 1V/V
VI
Single-Supply, Low-Cost Video Line Driver
DESCRIPTION
The OPA832 is a low-power, high-speed, fixed-gain amplifier
designed to operate on a single +3.3V or +5V supply.
Operation on ±5V or +10V supplies is also supported. The
input range extends below ground and to within 1V of the
positive supply. Using complementary common-emitter
outputs provides an output swing to within 30mV of ground
and 130mV of the positive supply. The high output drive
current and low differential gain and phase errors also make
it ideal for single-supply consumer video products.
Low distortion operation is ensured by the high gain
bandwidth product (200MHz) and slew rate (850V/µs), making
the OPA832 an ideal input buffer stage to 3V and 5V CMOS
converters. Unlike other low-power, single-supply amplifiers,
distortion performance improves as the signal swing is
decreased. A low 9.3nV/√Hz input voltage noise supports
wide dynamic range operation.
The OPA832 is available in an industry-standard SO-8
package. The OPA832 is also available in an ultra-small
SOT23-5 package. For gains other than +1, −1, or +2,
consider using the OPA830.
RELATED PRODUCTS
DESCRIPTION
SINGLES DUALS
Medium Speed
Medium Speed,
Fixed Gain
OPA830
—
OPA2830
OPA2832
TRIPLES
—
OPA3832
QUADS
OPA4830
—
LARGE−SIGNAL BANDWIDTH
(1VPP AT MATCHED LOAD)
0
−3
−6
−9
1
10
Frequency (MHz)
100
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2003−2004, Texas Instruments Incorporated
www.ti.com
1 page  
OPA832
www.ti.com
SBOS266B − JUNE 2003 − REVISED SEPTEMBER 2004
ELECTRICAL CHARACTERISTICS: VS = +3.3V
Boldface limits are tested at +25°C.
At TA = 25°C, G = +2, and RL = 150Ω to VCM = 0.75V, unless otherwise noted (see Figure 2).
OPA832ID, IDBV
TYP
MIN/MAX OVER
TEMPERATURE
PARAMETER
CONDITIONS
+25°C
+25°C(1)
0°C to
70°C(2)
AC PERFORMANCE (see Figure 2)
Small-Signal Bandwidth
Peaking at a Gain of +1
Slew Rate
G = +2, VO ≤ 0.5VPP
G = −1, VO ≤ 0.5VPP
VO ≤ 0.5VPP
1V Step
95 59 57
103 63 61
4.2
170 115 115
Rise Time
0.5V Step
4
Fall Time
0.5V Step
4.2
Settling Time to 0.1%
1V Step
48
Harmonic Distortion
5MHz
2nd-Harmonic
3rd-Harmonic
Input Voltage Noise
RL = 150Ω
RL = 500Ω
RL = 150Ω
RL = 500Ω
f > 1MHz
−71 −64 −62
−74 −70 −66
−66 −60 −55
−69 −66 −62
9.4
Input Current Noise
DC PERFORMANCE(4)
f > 1MHz
2.4
Gain Error
G = +2
±0.3
±1.5
±1.6
G = −1
±0.2
±1.5
±1.6
Internal RF and RG
Maximum
400 455 460
Minimum
400 345 340
Average Drift
0.1
Input Offset Voltage
±1 ±7 ±8
Average Offset Voltage Drift
— ±20
Input Bias Current
Input Bias Current Drift
Input Offset Current
Input Offset Current Drift
VCM = 0.75V
VCM = 0.75V
5.5 +10 +12
±12
±0.1 ±1.5
±2
— ±10
INPUT
Least Positive Input Voltage
−0.5
−0.3
−0.2
Most Positive Input Voltage
1.5 1.4 1.3
Input Impedance, Differential-Mode
10 2.1
Common-Mode
400 1.2
OUTPUT
Least Positive Output Voltage
Most Positive Output Voltage
Current Output, Sourcing
RL = 1kΩ to 0.75V
RL = 150Ω to 0.75V
RL = 1kΩ to 0.75V
RL = 150Ω to 0.75V
0.03
0.1
3
3
35
0.16
0.3
2.8
2.8
25
0.18
0.35
2.6
2.6
20
Current Output, Sinking
35 25 20
Short-Circuit Output Current
Output Shorted to Either Supply
80
Closed-Loop Output Impedance
See Figure 2, f < 100kHz
0.2
POWER SUPPLY
Minimum Operating Voltage
+2.8
Maximum Operating Voltage
— +11 +11
Maximum Quiescent Current
Minimum Quiescent Current
Power-Supply Rejection Ratio (PSRR)
VS = +3.3V
VS = +3.3V
Input-Referred
3.8 4.0 4.7
3.8 3.4 3.2
60
THERMAL CHARACTERISTICS
Specification: ID, IDBV
−40 to +85
Thermal Resistance
D SO-8
125
DBV SOT23-5
150
UNITS
MHz
MHz
dB
V/µs
ns
ns
ns
dBc
dBc
dBc
dBc
nV/√Hz
pA/√Hz
%
%
Ω
Ω
%/°C
mV
µV/°C
µA
nA/°C
µA
nA/°C
V
V
kΩ pF
kΩ pF
V
V
V
V
mA
mA
mA
Ω
V
V
mA
mA
dB
°C
°C/W
°C/W
MIN/
MAX
TEST
LEVEL(3)
min B
min B
typ C
min B
max B
max B
max B
max B
max B
max B
max B
max B
max B
min A
max B
max A
max A
max B
max A
max B
max A
max B
max A
max B
max B
min B
typ C
typ C
max B
max B
min B
min B
min A
min A
typ C
typ C
typ C
max A
max A
min A
typ C
typ C
typ C
typ C
(1) Junction temperature = ambient for +25°C specifications.
(2) Junction temperature = ambient at low temperature limits; junction temperature = ambient +5°C at high temperature limit for over temperature.
(3) Test levels: (A) 100% tested at +25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only
for information.
(4) Current is considered positive out of node.
5
5 Page 
www.ti.com
TYPICAL CHARACTERISTICS: VS = +5V (continued)
At TA = 25°C, G = +2, and RL = 150Ω to VCM = 2V, unless otherwise noted (see Figure 1).
OPA832
SBOS266B − JUNE 2003 − REVISED SEPTEMBER 2004
SUPPLY AND OUTPUT CURRENT vs TEMPERATURE
100
90
80 Output Current, Sinking
70
Output Current, Sourcing
60
50
40
30 Quiescent Current
20
10
0
−40 −20
0 20 40 60 80 100 120
Ambient Temperature (_ C/div)
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet OPA832.PDF ] | |
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