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PDF OPA2889 Data sheet ( Hoja de datos )
| Número de pieza | OPA2889 | |
| Descripción | Voltage Feedback OPERATIONAL AMPLIFIER | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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BurrĆBrown Products
from Texas Instruments
OPA2889
OPA2889
OPA2889
Dual, Low-Power, Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER with Disable
SBOS373 – JUNE 2007
FEATURES
• FLEXIBLE SUPPLY RANGE:
+2.6V to +12V Single Supply
±1.3V to ±6V Dual Supplies
• UNITY-GAIN STABLE
• WIDEBAND ±5V OPERATION: 60MHz
(G = +2V/V)
• OUTPUT VOLTAGE SWING: ±4V
• HIGH SLEW RATE: 250V/μs
• LOW QUIESCENT CURRENT: 460μA/ch
• LOW DISABLE CURRENT: 18μA/ch
APPLICATIONS
• VIDEO LINE DRIVING
• xDSL LINE RECEIVERS
• HIGH-SPEED IMAGING CHANNELS
• ADC BUFFERS
• PORTABLE INSTRUMENTS
• TRANSIMPEDANCE AMPLIFIERS
• ACTIVE FILTERS
Vi
0V ® 4V
1kW
500pF
50W
200W
+6V
1/2
OPA2889
+5V
ADS8472
16W
-6V
200W
750W
750W
.01mF
16-Bit
1MSPS
SAR ADC
VREF/2
375W
+6V
1/2
OPA2889
-6V
16W
500kHz LP
Pole
Low Power, DC-Coupled, Single-to-Differential
Driver for ≤100kHz Inputs
DESCRIPTION
The OPA2889 represents a major step forward in
unity-gain stable, voltage-feedback op amps. A new
internal architecture provides slew rate and
full-power bandwidth previously found only in
wideband, current-feedback op amps. These
capabilities give exceptional full-power bandwidth.
Using a dual ±5V supply, the OPA2889 can deliver a
±4V output swing with over 40mA drive current and
60MHz bandwidth. This combination of features
makes the OPA2889 an ideal RGB line driver or
single-supply analog-to-digital converter (ADC) input
driver or low power twisted pair line receiver.
The low 460μA/ch supply current of the OPA2889 is
precisely trimmed at +25°C. System power may be
reduced further using the optional disable control pin.
Leaving this disable pin open, or holding it HIGH,
operates the OPA2889 normally. If pulled LOW, the
OPA2889 supply current drops to less than 20μA/ch
while the output goes into a high-impedance state.
RELATED
OPERATIONAL AMPLIFIER
PRODUCTS
Low-Power Voltage-Feedback
with Disable
Voltage-Feedback Amplifier
with Disable (1800V/μs)
Current-Feedback Amplifier
with Disable (2100V/μs)
Fixed Gain
SINGLES
OPA890
OPA690
OPA691
OPA692
DUALS
OPA2890
OPA2690
OPA2691
TRIPLES
OPA3690
OPA3691
OPA3692
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated
1 page  
OPA2889
www.ti.com
SBOS373 – JUNE 2007
ELECTRICAL CHARACTERISTICS: VS = +5V
At TA = +25C, RF = 750Ω, G = +2V/V, and RL = 100Ω, unless otherwise noted.
PARAMETER
AC PERFORMANCE
Small-Signal Bandwidth
Gain Bandwidth Product
Bandwidth for 0.1dB Flatness
Peaking at a Gain of +1V/V
Large-Signal Bandwidth
Slew Rate
Rise-and-Fall Time
Settling Time to 0.02%
Settling Time to 0.1%
Harmonic Distortion
2nd-Harmonic
3rd-Harmonic
Input Voltage Noise
Input Current Noise
Differential Gain
Differential Phase
Channel-to-Channel Crosstalk
DC PERFORMANCE(4)
Open-Loop Voltage Gain (AOL)
Input Offset Voltage
Average Offset Voltage Drift
Input Bias Current
Average Input Bias Current Drift
Input Offset Current
Average Input Offset Current
Drift
INPUT
Most Positive Input Voltage
Least Positive Input Voltage
Common-Mode Rejection Ratio
(CMRR)
Input Impedance
Differential
Common-Mode
CONDITIONS
G = +1V/V, VO = 100mVPP, RF = 0Ω
G = +2V/V, VO = 100mVPP
G = +10V/V, VO = 100mVPP
G > +20V/V
G = +2V/V, VO = 100mVPP
VO < 100mVPP , RF =0 Ω
G = +2V/V, VO = 2VPP
G = +2V/V, VO = 2V Step
0.2V Step
G = +1V/V, VO = 2V Step
G = +2V/V, f = 1MHz, VO = 2VPP
RL = 200Ω
RL ≥ 500Ω
RL = 200Ω
RL ≥ 500Ω
f > 100kHz
f > 100kHz
G = +2V/V, VO = 1.4VPP, RL = 150Ω
G = +2V/V, VO = 1.4VPP, RL = 150Ω
f = 5MHz, Input-referred
VO = 0V, RL = 100Ω
VCM = 0V
VCM = 0V
VCM = 0V
VCM = 0V
VCM = 0V
VCM = 0V
VCM = 0V, Input-referred
VCM = 0V
VCM = 0V
TYP
+25°C
OPA2889ID, IDGS
MIN/MAX OVER
TEMPERATURE
0°C to –40°C to
+25°C(2) +70°C(3) +85°C(3)
UNITS
MIN/ TEST
MAX LEVEL(1)
100
MHz
typ
C
50
30
26
22
MHz
min
B
7
5.5 4.5
4
MHz
min
B
70
55
45
40
MHz
min
B
14
MHz
typ
C
1
dB typ
C
60
MHz
typ
C
200
125
110
100
V/μs
min
B
6.5 ns typ C
38 ns typ C
27 ns typ C
–71 –61 –58 –56 dBc max B
–76 –69 –64 –61 dBc max B
–76 –70 –66 –64 dBc max B
–76 –74 –69 –66 dBc max B
8.5 10.5 12 12.5 nV/√Hz max B
0.7
1
1.1
1.2 pA/√Hz max
B
0.06 % typ C
0.04 ° typ C
–85
dB typ
C
64
±1.5
±150
±50
58
5
±800
250
56
5.9
20
890
2
275
0.5
55 dB min
6.3 mV max
20 μV/°C max
930 nA max
2 nA/°C max
285 nA max
0.5 nA/°C max
A
A
B
A
B
A
B
4 3.9 3.8 3.75 V min A
1 1.1 1.2 1.25 V max A
68
58
57
56
dB min
A
3.5 || 0.5
170 || 0.8
MΩ || pF
MΩ || pF
typ
typ
C
C
(1) Test levels: (A) 100% tested at +25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization
and simulation. (C) Typical value only for information.
(2) Junction temperature = ambient for +25°C tested specifications.
(3) Junction temperature = ambient at low temperature limit; junction temperature = ambient +4°C at high temperature limit for over
temperature specifications.
(4) Current is considered positive out-of-node. VCM is the input common-mode voltage.
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5
5 Page 
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DISABLE FEEDTHROUGH
-70 Input-Referred
-75
-80
-85
-90
-95
-100
-105
-110
-115
1
10
Frequency (MHz)
Figure 25.
OPA2889
SBOS373 – JUNE 2007
COMMON-MODE AND DIFFERENTIAL INPUT IMPEDANCE
1G
100M
Common-Mode Input
10M
1M
Differential Input
100k
10k
1k
100 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
Figure 26.
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11
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet OPA2889.PDF ] | |
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