參數(shù)資料
型號(hào)： LOG112
元件分類： 跨阻放大器
英文描述： Precision, High-Speed Transimpedance Amplifier
中文描述： 精密，高速互阻抗放大器
文件頁數(shù)： 3/18頁
文件大小： 362K
代理商： LOG112
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SBOS291E NOVEMBER 2003 REVISED NOVEMBER 2004
www.ti.com
3
ELECTRICAL CHARACTERISTICS: OPA380 (SINGLE), 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 = 2k
connected to VS/2, and VOUT = VS/2, unless otherwise noted.
OPA380
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
4
25
0.1
10
10
μ
V
dVOS/dT
PSRR
0.03
2.4
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 Inverting Input
Capacitance
IB
VCM = VS/2
3
±
50
pA
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
67
5.8
10
μ
V
PP
nV/
√
Hz
nV/
√
Hz
fA/
√
Hz
VCM
CMRR
V
100
(V+) 1.8V
V
(V) < VCM < (V+) – 1.8V
110
dB
1.1
pF
1013 || 3
|| pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain
AOL
0.1V < VO < (V+) 0.7V, VS = 5V, VCM = VS/2
0.1V < VO < (V+) 0.6V
,
VS = 5V, VCM = VS/2,
TA = -40
°
C to +85
°
C
0V < VO < (V+) 0.7V, VS = 5V, VCM = 0V,
RP = 2k
to 5V(2)
0V < VO < (V+) 0.6V, VS = 5V, VCM = 0V,
RP = 2k
to 5V(2), TA = -40
°
C to +85
°
C
CL = 50pF
G = +1
VS = +5V, 4V Step, G = +1
VIN
G = > VS
110
130
dB
110
130
dB
106
120
dB
106
120
dB
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.01%(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
90
80
2
100
MHz
V/
μ
s
μ
s
ns
tS
RL = 2k
RL = 2k
400
60
400
20
600
100
600
0
mV
mV
mV
mV
RP = 2k
to 5V(2)
RP = 2k
to 5V(2)
IOUT
ISC
CLOAD
See Typical Characteristics
150
See Typical Characteristics
40
mA
RO
f = 1MHz, IO = 0A
POWER SUPPLY
Specified Voltage Range
Quiescent Current
Over Temperature
TEMPERATURE RANGE
Specified and Operating Range
Storage Range
Thermal Resistance
MSOP-8, SO-8
VS
IQ
2.7
5.5
8.3
8.8
V
IO = 0A
6.5
mA
mA
40
65
+125
+150
°
C
°
C
JA
150
°
C/W
(1)300-hour life test at 150
°
C demonstrated randomly distributed variation approximately equal to measurement repeatability of 1
μ
V.
(2)Tested with output connected only to RP, a pulldown resistor connected between VOUT and 5V, as shown in Figure 5. See also applications section,
Achieving
Output Swing to Ground.
(3)Transimpedance frequency of 1MHz.
(4)Time required to return to linear operation.
(5)From positive rail.
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LOG112AIDE4 功能描述:對數(shù)放大器 Precision Log & Log Ratio Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:3 帶寬:3 dB 共模抑制比（最小值）: 輸入補(bǔ)償電壓:+/- 7 mV 輸入電壓范圍（最大值）:5.5 V 工作電源電壓:4.5 V to 5.5 V 電源電流:+/- 15 mA 工作溫度范圍:- 40 C to +85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
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