參數資料
型號： LOG102AIDR
廠商： TEXAS INSTRUMENTS INC
元件分類： 模擬運算功能
英文描述： LOG OR ANTILOG AMPLIFIER, 1.4 MHz BAND WIDTH, PDSO14
封裝： GREEN, PLASTIC, MS-012AB, SOIC-14
文件頁數： 12/18頁
文件大?。?/td> 490K
代理商： LOG102AIDR
www.ti.com
LOG102
3
SBOS211B
TOTAL ERROR(3)(4)
I1 or I2 remains fixed while other varies
Initial
min to max
I1 or I2 = 1mA
±55
mV
I1 or I2 = 100A
±30
mV
I1 or I2 = 10A
±25
mV
I1 or I2 = 1A
±20
mV
I1 or I2 = 100nA
±25
mV
I1 or I2 = 10nA
±30
mV
I1 or I2 = 1nA
±37
mV
vs Temperature
I1 or I2 = 1mA
±0.4
mV/
°C
I1 or I2 = 100A
±0.07
mV/
°C
I1 or I2 = 10A
±0.07
mV/
°C
I1 or I2 = 1A
±0.07
mV/
°C
I1 or I2 = 100nA
±0.07
mV/
°C
I1 or I2 = 10nA
±0.07
mV/
°C
I1 or I2 = 1nA
±0.4
mV/
°C
vs Supply
I1 or I2 = 1mA
±0.15
mV/ V
I1 or I2 = 100A
±0.15
mV/ V
I1 or I2 = 10A
±0.25
mV/ V
I1 or I2 = 1A
±0.2
mV/ V
I1 or I2 = 100nA
±0.2
mV/ V
I1 or I2 = 10nA
±0.15
mV/ V
I1 or I2 = 1nA
±0.25
mV/ V
FREQUENCY RESPONSE, core log (5)
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 (3 decade)
CC = 150pF
11
s
I2 = 100nA to 1A (1 decade)
CC = 150pF
7
s
I2 = 10nA to 100nA (1 decade)
CC = 150pF
110
s
Decreasing
I2 = 1mA to 1A (3 decade)
CC = 150pF
45
s
I2 = 1A to 100nA (1 decade)
CC = 150pF
20
s
I2 = 100nA to 10nA (1 decade)
CC = 150pF
550
s
OP AMPS, A3 AND A4
Input Offset Voltage
±175
±750
V
vs Temperature
TMIN to TMAX
±2
V/°C
vs Power Supply
VS = ±4.5V to ±18V
10
50
V/V
Input Bias Current(5)
–10
nA
Input Offset Current
±0.5
nA
Input Voltage Range
(V–)
(V+) – 1.5
V
Common-Mode Rejection
86
dB
Input Noise, f = 0.1Hz to 10Hz
1
V
PP
f = 1kHz
28
nV/
√Hz
Open Loop Voltage Gain
88
dB
Gain-Bandwidth Product
1.4
MHz
Slew Rate
G = 1, 2.5V step
0.5
V/
s
Settling Time, 0.01%
G = 1, 2.5V Step, CL =100pF
16
s
Rated Output
VS = 5V, RL = 10k
(V–) + 1.5
(V+) – 0.9
V
Short-Circuit Current
–ISC /+ISC
–36 /+60
mA
POWER SUPPLY
Operating Range
VS
±4.5
±18
V
Quiescent Current
IO = 0
1.25
2
mA
TEMPERATURE RANGE
Specified Range, TMIN to TMAX
070
°C
Operating Range
–40
+85
°C
Storage Range
–40
+125
°C
Thermal Resistance,
θ
JA
SO-14
100
°C/W
NOTES: (1) Log Conformity Error is peak deviation from the best-fit straight line of VO versus Log (I1/I2) curve expressed as a percent of peak-to-peak full-scale
(2) Output core log function is trimmed to 1V output per decade change of input current. (3) Worst-case Total Error for any ratio of I1/I2, is the largest of the two
errors, when I1 and I2 are considered separately. (4) Total I1 + I2 should be kept below 1.1mA on ±5V supply. (5) Bandwidth (3dB) and transient response are a
function of both the compensation capacitor and the level of input current. (6) Positive conventional current flows into input terminals.
ELECTRICAL CHARACTERISTICS (Cont.)
Boldface limits apply over the specified temperature range, TA = 0°C to +70°C.
At TA = +25°C, VS = ±5V, RL = 10k, unless otherwise noted.
LOG102AID
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
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