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부품번호 | OPA820IDBVR 기능 |
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기능 | Unity-Gain Stable/ Low-Noise/ Voltage-Feedback Operational Amplifier | ||
제조업체 | Burr-Brown Corporation | ||
로고 | |||
전체 25 페이지수
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
OPA820
SBOS303A − JUNE 2004 − REVISED JULY 2004
www.ti.com
ELECTRICAL CHARACTERISTICS: VS = +5V
Boldface limits are tested at +25°C.
RF = 402Ω, RL = 100Ω, and G = +2, unless otherwise noted.
PARAMETER
AC PERFORMANCE
Small-Signal Bandwidth
Gain-Bandwidth Product
Peaking at a Gain of 1
Large-Signal Bandwidth
Slew Rate
Rise Time and Fall Time
Settling Time to 0.02%
to 0.1%
Harmonic Distortion
2nd-Harmonic
3rd-Harmonic
Input Voltage Noise
Input Current Noise
DC PERFORMANCE(4)
Open-Loop Voltage Gain (AOL)
Input Offset Voltage
Average Input Offset Voltage Drift
Input Bias Current
Average Input Bias Current Drift
Input Offset Current
Inverting Input Bias Current Drift
INPUT
Least Positive Input Voltage
Most Positive Input Voltage
Common-Mode Rejection Ratio (CMRR)
Input Impedance
Differential Mode
Common Mode
OUTPUT
Most Positive Output Voltage
Least Positive Output Voltage
Output Current
Short-Circuit Output Current
Closed-Loop Output Impedance
CONDITIONS
G = +1, VO = 0.1VPP, RF = 0Ω
G = +2, VO = 0.1VPP
G = +10, VO = 0.1VPP
G ≥ 20
VO = 0.1VPP, RF = 0Ω
G = +2, VO = 2VPP
G = +2, 2V Step
G = +2, VO = 2V Step
G = +2, VO = 2V Step
G = +2, VO = 2V Step
G = +2, f = 1MHz, VO = 2VPP
RL = 200Ω
RL ≥ 500Ω
RL = 200Ω
RL ≥ 500Ω
f > 100kHz
f > 100kHz
VO = 2.5V, RL = 100Ω
VCM = 2.5V
VCM = 2.5V
VCM = 2.5V
VCM = 2.5V
VCM = 2.5V
VCM = 2.5V
VCM = 2.5V, Input-Referred
VCM = 2.5V
VCM = 2.5V
No Load
RL = 100Ω to 2.5V
No Load
RL = 100Ω to 2.5V
VO = 2.5V
Output Shorted to Ground
G = +2, f ≤ 100kHz
TYP
+25°C
OPA820ID, IDBV
MIN/MAX OVER TEMPERATURE
+25°C(1)
0°C to
70°C(2)
−40°C to
+85°C(2)
UNITS
MIN/
MAX
TEST
LEVEL
(3)
550
230
28
260
0.5
70
200
1.7
24
21
−80
−83
−100
−98
2.5
1.6
168
21
200
145
−76
−79
−92
−95
2.8
2.5
155
20
190
140
−75
−77
−91
−93
2.9
2.7
MHz
typ
151 MHz min
19
MHz
min
185 MHz min
dB typ
MHz
typ
135 V/µs min
ns typ
ns typ
ns typ
−74 dBc max
−75 dBc max
−90 dBc max
−92 dBc max
3.0
nV/√Hz
max
2.9
pA/√Hz
max
C
B
B
B
C
C
B
C
C
C
B
B
B
B
B
B
65
±0.3
−8
±100
60
±1.1
−16
±400
59
±1.4
4
−18
30
±600
5
58
±1.6
4
−22
50
±700
5
dB
mV
µV/°C
µΑ
nA/°C
nA
nA/°C
min
max
max
max
max
max
max
A
A
B
A
B
A
B
0.9 1.1 1.2 1.3
4.5 4.2 4.1 4.0
83 74 73 72
V min A
V max A
dB min A
15 1
5 1.3
kΩ pF
MΩ pF
typ
typ
C
C
+3.9 +3.8 +3.75 +3.7
V
min A
+3.8 +3.7 +3.65 +3.6
V
min A
+1.2 +1.3 +1.35 +1.4 V max A
+1.2 +1.3 +1.35 +1.4 V max A
±105
±80
±70
±65
mA
min
A
±115
mA typ C
0.04 Ω typ C
POWER SUPPLY
Specified Operating Voltage
Maximum Operating Voltage
Maximum Quiescent Current
Minimum Quiescent Current
Power-Supply Rejection Ratio (+PSRR)
THERMAL CHARACTERISTICS
Specification: ID, IDBV
Thermal Resistance, qJA
D SO-8
DBV SOT23-5
VS = +5V
VS = +5V
Input-Referred
Junction-to-Ambient
Junction-to-Ambient
+5 V typ
+12 +12 +12 V max
5.0 5.4 5.5 5.6 mA max
5.0 4.4 4.25 4.1 mA min
68 dB typ
−40 to +85
125
150
°C
°C/W
°C/W
typ
typ
typ
C
A
A
A
C
C
C
C
(1) Junction temperature = ambient for +25°C specifications.
(2) Junction temperature = ambient at low temperature limits; junction temperature = ambient +7°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. VCM is the input common-mode voltage.
(5) Tested < 3dB below minimum specified CMRR at ± CMIR limits.
4
4페이지 www.ti.com
TYPICAL CHARACTERISTICS: VS = ±5V (continued)
RF = 402Ω, RL = 100Ω, and G = +2, unless otherwise noted.
OPA820
SBOS303A − JUNE 2004 − REVISED JULY 2004
INPUT VOLTAGE AND CURRENT NOISE
100
10
Voltage Noise (2.5nV/√Hz)
Current Noise (1.7pA/√Hz)
1
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
50
45
40
35
30
25
20
15
0
TWO−TONE, 3RD−ORDER
INTERMODULATION INTERCEPT
PI
50Ω OPA820
402Ω
40 2Ω
PO
200Ω
5 10 15 20 25 30
Frequency (MHz)
RECOMMENDED RS vs CAPACITIVE LOAD
100
0dB Peaking Targeted
10
1
1 10 100 1000
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
8 CL = 10pF
7 CL = 22pF
6
5 CL = 47pF
4
CL = 100pF
3
2 VI
1
0
−1
−2
50Ω OPA 820
4 02Ω
RS
VO
CL 1kΩ(1)
402Ω
NOTE: (1) 1kΩ is o ptional.
−3
1
10 100 400
Frequency (MHz)
90
80
70
60
50
40
30
20
10
0
1k
CMRR AND PSRR vs FREQUENCY
CMRR
+PSRR
−PSRR
10k 100k 1M 10M 100M
Frequency (Hz)
80
70
60
50
40
30
20
10
0
−10
100
OPEN−LOOP GAIN AND PHASE
0
20 log (AOL)
−20
−40
−60
∠ AOL
−80
−100
−120
−140
−160
−180
1k 10k 100k 1M 10M 100M 1G
Frequency (Hz)
7
7페이지 | |||
구 성 | 총 25 페이지수 | ||
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부품번호 | 상세설명 및 기능 | 제조사 |
OPA820IDBVR | Unity-Gain Stable/ Low-Noise/ Voltage-Feedback Operational Amplifier | Burr-Brown Corporation |
OPA820IDBVT | Unity-Gain Stable/ Low-Noise/ Voltage-Feedback Operational Amplifier | Burr-Brown Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |