參數(shù)資料
型號(hào)： LOG114AIRGVR
元件分類： 對(duì)數(shù)放大器
英文描述： Single-Supply, High-Speed, Precision LOGARITHMIC AMPLIFIER
中文描述： 單電源，高速，精密對(duì)數(shù)放大器
文件頁(yè)數(shù)： 4/30頁(yè)
文件大?。?/td> 616K
代理商： LOG114AIRGVR
"#$$%
SBOS301A MAY 2004 REVISED MARCH 2007
www.ti.com
4
ELECTRICAL CHARACTERISTICS: V
S
= 5V (continued)
Boldface
limits apply over the specified temperature range,
T
A
= 5
°
C to +75
°
C
.
All specifications at T
A
= +25
°
C, R
VLOGOUT
= 10k
, V
CM
= GND, unless otherwise noted.
LOG114
TYP
PARAMETER
UNITS
MAX
MIN
CONDITIONS
TOTAL ERROR(4, 5)
See Typical Characteristics
FREQUENCY RESPONSE, Core Log
(6)
BW, 3dB I
1
or I
2
=
1nA
10nA
100nA
1
μ
A
10
μ
A to 1mA (ratio 1:100)
1mA to 3.5mA (ratio 1:3.5)
3.5mA to 10mA (ratio 1:2.9)
Step Response
Increasing (I
1
or I
2
)
8nA to 240nA (ratio 1:30)
10nA to 100nA (ratio 1:10)
10nA to 1
μ
A (ratio 1:100)
10nA to 10
μ
A (ratio 1:1k)
10nA to 1mA (ratio 1:100k)
1mA to 10mA (ratio 1:10)
Decreasing (I
1
or I
2
)
8nA to 240nA (ratio 1:30)
10nA to 100nA (ratio 1:10)
10nA to 1
μ
A (ratio 1:100)
10nA to 10
μ
A (ratio 1:1k)
10nA to 1mA (ratio 1:100k)
1mA to 10mA (ratio 1:10)
I
AC
= 10% of I
DC
value, I
REF
= 1
μ
A
5
12
120
2.3
> 5
> 5
> 5
kHz
kHz
kHz
MHz
MHz
MHz
MHz
I
REF
= 1
μ
A
0.7
1.5
0.15
0.07
0.06
1
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
I
REF
= 1
μ
A
1
2
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
0.25
0.05
0.03
1
VOLTAGE REFERENCE
Bandgap Voltage
Error, Initial
vs Temperature
vs Supply
vs Load
Short-Circuit Current
2.5
±
0.15
±
25
±
30
±
200
±
10
V
%
±
1
ppm/
°
C
ppm/V
ppm/mA
mA
V
S
=
±
4.5V to
±
5.5V
I
O
=
±
2mA
POWER SUPPLY
Dual Supply Operating Range
Quiescent Current
V
S
I
Q
±
2.4
±
5.5
±
15
V
I
O
= 0
±
10
mA
TEMPERATURE RANGE
Specification, T
MIN
to T
MAX
Operating
Storage
Thermal Resistance,
JA
5
40
55
+75
+85
+125
°
C
°
C
°
C
62
°
C/W
(1)Log conformity error is peak deviation from the best-fit straight line of V
O
vs Log (I
1
/I
2
) curve expressed as a percent of peak-to-peak full-scale output. Scale factor,
K, equals 0.375V output per decade of input current.
(2)Scale factor of core log function is trimmed to 0.375V output per decade change of input current.
(3)Specified by design.
(4)Worst-case total error for any ratio of I
/I
, as the largest of the two errors, when I, and I
2
are considered separately.
(5)Total error includes offset voltage, bias current, gain, and log conformity.
(6)Small signal bandwidth (3dB) and transient response are a function of the level of input current. Smaller input current amplitude results in lower bandwidth.
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LOG114AIRGVT 功能描述:對(duì)數(shù)放大器 Precision High-Speed 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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LOG114EVM 功能描述:放大器 IC 開發(fā)工具 LOG114 Eval Mod RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
LOG1527 制造商:未知廠家 制造商全稱:未知廠家 功能描述:由CMOS工藝設(shè)計(jì)制造的可內(nèi)燒的學(xué)習(xí)碼編碼IC.
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