OPA820IDBVT Datasheet PDF - Burr-Brown Corporation
| Part Number | OPA820IDBVT | |
| Description | Unity-Gain Stable/ Low-Noise/ Voltage-Feedback Operational Amplifier | |
| Manufacturers | Burr-Brown Corporation | |
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OPA820
SBOS303A − JUNE 2004 − REVISED JULY 2004
Unity-Gain Stable, Low-Noise, Voltage-Feedback
Operational Amplifier
FEATURES
D HIGH BANDWIDTH (240MHz, G = +2)
D HIGH OUTPUT CURRENT (±110mA)
D LOW INPUT NOISE (2.5nV/√Hz)
D LOW SUPPLY CURRENT (5.6mA)
D FLEXIBLE SUPPLY VOLTAGE
Dual ±2.5V to ±6V
Single +5V to +12V
D EXCELLENT DC ACCURACY
Maximum 25°C Input Offset Voltage = ±750µV
Maximum 25°C Input Offset Current = ±400nA
APPLICATIONS
D LOW-COST VIDEO LINE DRIVERS
D ADC PREAMPLIFIERS
D ACTIVE FILTERS
D LOW-NOISE INTEGRATORS
D PORTABLE TEST EQUIPMENT
D OPTICAL CHANNEL AMPLIFIERS
D LOW-POWER, BASEBAND AMPLIFIERS
D CCD IMAGING CHANNEL AMPLIFIERS
D OPA650 AND OPA620 UPGRADE
DESCRIPTION
The OPA820 provides a wideband, unity-gain stable,
voltage-feedback amplifier with a very low input noise voltage
and high output current using a low 5.6mA supply current. At
unity-gain, the OPA820 gives > 800MHz bandwidth with < 1dB
peaking. The OPA820 complements this high-speed
operation with excellent DC precision in a low-power device.
A worst-case input offset voltage of ±750µV and an offset
current of ±400nA give excellent absolute DC precision for
pulse amplifier applications.
Minimal input and output voltage swing headroom allow the
OPA820 to operate on a single +5V supply with > 2VPP output
swing. While not a rail-to-rail (RR) output, this swing will
support most emerging analog-to-digital converter (ADC)
input ranges with lower power and noise than typical RR
output op amps.
Exceptionally low dG/dP (0.01%/0.03°) supports low-cost
composite video line driver applications. Existing designs can
use the industry-standard pinout SO-8 package while
emerging high-density portable applications can use the
SOT23-5. Offering the industry’s lowest thermal impedance in
a SOT package, along with full specification over both the
commercial and industrial temperature ranges, gives solid
performance over a wide temperature range.
RELATED PRODUCTS
SINGLES DUALS TRIPLES
OPA354
OPA690
—
—
—
OPA2354
OPA2690
OPA2652
OPA2822
—
—
OPA3690
—
—
—
QUADS
OPA4354
—
—
—
OPA4820
FEATURES
CMOS RR Output
High Slew Rate
SOT23-8
Low Noise
Quad OPA820
+5V
+5V
RS 2kΩ 2kΩ
VIN 0.1µF 24.9Ω
OPA820
50Ω
100pF
REFT
(+3V)
IN
−5V
402Ω
2kΩ
ADS850
14−Bit
10MSPS
IN
402Ω
0.1µF
2kΩ
(+2V) (+1V)
REFB VREF SEL
AC-Coupled, 14-Bit ADS850 Interface
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 2004, Texas Instruments Incorporated
www.ti.com
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www.ti.com
TYPICAL CHARACTERISTICS: VS = ±5V
RF = 402Ω, RL = 100Ω, and G = +2, unless otherwise noted.
NONINVERTING SMALL−SIGNAL FREQUENCY RESPONSE
3 G = +1
0 RF = 0Ω
G = +5
−3
G = +2
−6
G = +10
−9
−12
VO = 0.1VPP
−15 RL = 100Ω
See Figure 1
−18
1M
10M
100M
Frequency (Hz)
1G
NONINVERTING LARGE−SIGNAL FREQUENCY RESPONSE
9
VO = 0.5VPP
6
3
0
−3
−6
G = +2
−9 RL = 100Ω
See Figure 1
−12
1
VO = 1VPP
VO = 2VPP
VO = 4VPP
10 100
Frequency (MHz)
500
NONINVERTING PULSE RESPONSE
0.4
0.3 Large Signal ± 1V
Right Scale
0.2
0.1
Small Signal ± 100mV
0 Left Scale
−0.1
−0.2
−0.3 G = +2
See Figure 1
−0.4
Time (10ns/div)
2.0
1.5
1.0
0.5
0
−0.5
−1.0
−1.5
−2.0
OPA820
SBOS303A − JUNE 2004 − REVISED JULY 2004
INVERTING SMALL−SIGNAL FREQUENCY RESPONSE
3
G = −1
0
G = −2
−3
G = −5
−6
−9
−12
−15
VO = 0.1VPP
RL = 100Ω
See Figure 2
−18
1
G = −10
10 100
Frequency (MHz)
500
INVERTING LARGE−SIGNAL FREQUENCY RESPONSE
3
VO = 0.5VPP
0
−3
−6
−9
−12
G = −1
−15 RL = 100Ω
See Figure 2
−18
1
VO = 1VPP
VO = 2VPP
VO = 4VPP
10 100
Frequency (MHz)
500
INVERTING PULSE RESPONSE
0.4
G = −1
0.3 See Figure 2
0.2
0.1
0 Small Signal ± 100mV
Left Scale
−0.1
−0.2
Large Signal ± 1V
−0.3 Right Scale
−0.4
Time (10ns/div)
2.0
1.5
1.0
0.5
0
−0.5
−1.0
−1.5
−2.0
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for OPA820IDBVT electronic component. |
| Information | Total 25 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ OPA820IDBVT.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| OPA820IDBVR | The function is Unity-Gain Stable/ Low-Noise/ Voltage-Feedback Operational Amplifier. Burr-Brown Corporation | |
| OPA820IDBVT | The function is Unity-Gain Stable/ Low-Noise/ Voltage-Feedback Operational Amplifier. Burr-Brown Corporation | |
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