參數(shù)資料
型號(hào)： OPA2381AIDRBR
元件分類： 跨阻放大器
英文描述： Precision, Low Power, 18MHz Transimpedance Amplifier
中文描述： 精密，低功耗，18MHz的阻放大器
文件頁(yè)數(shù)： 3/19頁(yè)
文件大?。?/td> 489K
代理商： OPA2381AIDRBR
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SBOS313B AUGUST 2004 REVISED NOVEMBER 2004
www.ti.com
3
ELECTRICAL CHARACTERISTICS: V
S
= +2.7V to +5.5V
Boldface
limits apply over the temperature range,
T
A
= 40
°
C to +125
°
C
.
All specifications at TA = +25
°
C, RL = 10k
connected to VS/2, and VOUT = VS/2, unless otherwise noted.
OPA381
TYP
PARAMETER
CONDITION
MIN
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
Drift
vs Power Supply
Over Temperature
Long-Term Stability(1)
Channel Separation, dc
VOS
VS = +5V, VCM = 0V
7
25
0.1
20
20
μ
V
dVOS/dT
PSRR
0.03
3.5
μ
V/
°
C
μ
V/V
μ
V/V
VS = +2.7V to +5.5V, VCM = 0V
VS = +2.7V to +5.5V, VCM = 0V
See Note (1)
1
μ
V/V
INPUT BIAS CURRENT
Input Bias Current
Over Temperature
Input Offset Current
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
Input Voltage Noise Density, f = 10kHz
Input Voltage Noise Density, f > 1MHz
Input Current Noise Density, f = 10kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
INPUT IMPEDANCE
Differential Capacitance
Common-Mode Resistance and Capacitance
OPEN-LOOP GAIN
Open-Loop Voltage Gain
IB
VCM = VS/2
3
±
50
pA
See Typical Characteristics
6
IOS
VCM = VS/2
±
100
pA
en
en
en
in
VS = +5V, VCM = 0V
VS = +5V, VCM = 0V
VS = +5V, VCM = 0V
VS = +5V, VCM = 0V
3
70
10
20
μ
VPP
nV/
√
Hz
nV/
√
Hz
fA/
√
Hz
VCM
CMRR
V
95
(V+) 1.8V
V
VS = +5V, (V) < VCM < (V+) 1.8V
110
dB
1
pF
1013|| 2.5
|| pF
AOL
0.05V < VO < (V+) 0.6V, VCM = VS/2, VS = 5V
0V < V
O
< (V+) 0.6V, V
CM
= 0V, R
P
= 10k
to 5V
(2)
, V
S
= 5V
110
106
135
135
dB
dB
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.0015%(3)
Settling Time, 0.003%(3)
Overload Recovery Time(4), (5)
OUTPUT
Voltage Output Swing from Positive Rail
Voltage Output Swing from Negative Rail
Voltage Output Swing from Positive Rail
Voltage Output Swing from Negative Rail
Output Current
Short-Circuit Current
Capacitive Load Drive
Open-Loop Output Impedance
GBW
SR
18
12
7
7
200
MHz
V/
μ
s
μ
s
μ
s
ns
G = +1
VS = +5V, 4V Step, G = +1, OPA381
VS = +5V, 4V Step, G = +1, OPA2381
VIN
G = > VS
RL = 10k
RL = 10k
RP = 10k
to 5V(2)
RP = 10k
to 5V(2)
400
30
400
20
10
20
600
50
600
0
mV
mV
mV
mV
mA
mA
IOUT
ISC
CLOAD
See Typical Characteristics
250
RO
F = 1MHz, IO = 0
POWER SUPPLY
Specified Voltage Range
Quiescent Current (per amplifier)
Over Temperature
TEMPERATURE RANGE
Specified and Operating Range
Storage Range
Thermal Resistance
MSOP-8
DFN-8
VS
IQ
2.7
5.5
1
1.1
V
IO = 0A
0.8
mA
mA
40
65
+125
+150
°
C
°
C
JA
150
65
°
C/W
°
C/W
(1)High temperature operating life characterization of zero-drift op amps applying the techniques used in the OPA381 have repeatedly demonstrated randomly
distributed variation approximately equal to measurement repeatability of 1
μ
V. This consistency gives confidence in the stability and repeatability of these zero-
drift techniques.
(2)Tested with output connected only to RP, a pulldown resistor connected between VOUT and 5V, as shown in Figure
3. See also
Applications
section,
Achieving
Output Swing to Negative Rail.
(3)Transimpedance frequency of 250kHz.
(4)Time required to return to linear operation.
(5)From positive rail.
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OPA2381AIDRBT 功能描述:運(yùn)算放大器 - 運(yùn)放 Precision Lo-Power Transimpedance RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA2381AIDRBTG4 功能描述:運(yùn)算放大器 - 運(yùn)放 Precision Lo-Power Transimpedance RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA241PA 功能描述:運(yùn)算放大器 - 運(yùn)放 Single-Supply MicroPower Oper Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA241PA 制造商:BURR-BROWN 功能描述:IC OP-AMP MICROPOWER
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