參數(shù)資料
型號： LOG104AIDR
廠商： TEXAS INSTRUMENTS INC
元件分類： 模擬運算功能
英文描述： LOG OR ANTILOG AMPLIFIER, 0.01 MHz BAND WIDTH, PDSO8
封裝： ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8
文件頁數(shù)： 8/14頁
文件大小： 294K
代理商： LOG104AIDR
www.ti.com
LOG104
3
SBOS243C
TOTAL ERROR(4)(5)
I1 or I2 remains fixed while other varies.
Initial
Min to Max
I1 or I2 = 3.5mA
±75
mV
I1 or I2 = 1mA
±20
mV
I1 or I2 = 100A
±20
mV
I1 or I2 = 10A
±20
mV
I1 or I2 = 1A
±20
mV
I1 or I2 = 100nA
±20
mV
I1 or I2 = 10nA
±20
mV
I1 or I2 = 1nA
±20
mV
I1 or I2 = 350pA
±20
mV
I1 or I2 = 100pA
±20
mV
vs Temperature
I1 or I2 = 3.5mA
±1.2
mV/
°C
I1 or I2 = 1mA
±0.4
mV/
°C
I1 or I2 = 100A
±0.1
mV/
°C
I1 or I2 = 10A
±0.05
mV/
°C
I1 or I2 = 1A
±0.05
mV/
°C
I1 or I2 = 100nA
±0.09
mV/
°C
I1 or I2 = 10nA
±0.2
mV/
°C
I1 or I2 = 1nA
±0.3
mV/
°C
I1 or I2 = 350pA
±0.1
mV/
°C
I1 or I2 = 100pA
±0.3
mV/
°C
vs Supply
I1 or I2 = 3.5mA
±3.0
mV/ V
I1 or I2 = 1mA
±0.1
mV/ V
I1 or I2 = 100A
±0.1
mV/ V
I1 or I2 = 10A
±0.1
mV/ V
I1 or I2 = 1A
±0.1
mV/ V
I1 or I2 = 100nA
±0.1
mV/ V
I1 or I2 = 10nA
±0.1
mV/ V
I1 or I2 = 1nA
±0.25
mV/V
I1 or I2 = 350pA
±0.1
mV/ V
I1 or I2 = 100pA
±0.1
mV/ V
FREQUENCY RESPONSE, CORE LOG(6)
BW, 3dB
I2 = 10nA
CC = 4500pF
0.1
kHz
I2 = 1ACC = 150pF
38
kHz
I2 = 10ACC = 150pF
40
kHz
I2 = 1mA
CC = 50pF
45
kHz
Step Response
Increasing
I2 = 1A to 1mA
CC = 150pF
11
s
I2 = 100nA to 1ACC = 150pF
7
s
I2 = 10nA to 100nA
CC = 150pF
110
s
Decreasing
I2 = 1mA to 1ACC = 150pF
45
s
I2 = 1A to 100nA
CC = 150pF
20
s
I2 = 100nA to 10nA
CC = 150pF
550
s
POWER SUPPLY
Operating Range
VS
±4.5
±18
V
Quiescent Current
IO = 0
±1
±1.5
mA
TEMPERATURE RANGE
Specified Range, TMIN to TMAX
–575
°C
Operating Range
–40
85
°C
Storage Range
–55
125
°C
Thermal Resistance,
θ
JA SO-8
150
°C/W
NOTES: (1) Log Conformity Error is peak deviation from the best-fit straight line of VOUT versus log (I1/I2) curve expressed as a percent of peak-to-peak full-scale.
(2) May require higher supply for full dynamic range.
(3) Output core log function is trimmed to 0.5V output per decade change of input current.
(4) Worst-case Total Error for any ratio of I1/I2 is the largest of the two errors, when I1 and I2 are considered separately.
(5) Total I1 + I2 should be kept below 4.5mA on ±5V supply.
(6) Bandwidth (3dB) and transient response are a function of both the compensation capacitor and the level of input current.
ELECTRICAL CHARACTERISTICS (Cont.)
Boldface limits apply over the specified temperature range, TA = –5°C to +75°C.
At TA = +25°C, VS = ±5V, RL = 10k, unless otherwise noted.
LOG104AID
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
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