參數(shù)資料
型號(hào)： MAX4207
廠商： Maxim Integrated Products, Inc.
元件分類： 運(yùn)動(dòng)控制電子
英文描述： Precision Transimpedance Logarithmic Amplifier with Over 5 Decades of Dynamic Range
中文描述： 高精度互阻對(duì)數(shù)放大器，動(dòng)態(tài)范圍大于105
文件頁數(shù)： 3/15頁
文件大?。?/td> 386K
代理商： MAX4207
M
Precision Transimpedance Logarithmic
Amplifier with Over 5 Decades of Dynamic Range
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS—Dual-Supply Operation (continued)
(V
CC
= +5V, V
EE
= -5V, GND = 0, I
REF
= 1μA, I
LOG
= 10μA, LOGV2 = SCALE, LOGV1 = OSADJ, CMVIN = CMVOUT, R
SET
> 1M
,
T
A
= -40°C to +85°C. Typical values are at T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Voltage Reference Output
Current
I
REFVOUT
1
mA
T
A
= +25°C
T
A
= -40°C to +85°C (Note 4)
490
482
500
510
518
Current Reference Output
Voltage
V
REFISET
mV
LOGV2 BUFFER
T
A
= +25°C
T
A
= -40°C to +85°C (Note 4)
(Note 4)
0.4
2
6
1
Input Offset Voltage
V
IO
mV
Input Bias Current
I
B
0.01
nA
V
OH
R
L
to GND = 2k
V
CC
-
0.2
V
CC
-
0.3
Output Voltage Range
V
OL
R
L
to GND = 2k
V
EE
+
0.2
V
EE
+
0.08
V
I
OUT+
I
OUT-
SR
GBW
Sourcing
Sinking
34
58
12
5
Output Short-Circuit Current
mA
Slew Rate
Unity-Gain Bandwidth
V/μs
MHz
AC ELECTRICAL CHARACTERISTICS—Dual-Supply Operation
(V
CC
= +5V, V
EE
= -5V, GND = 0, I
REF
= 1μA, I
LOG
= 10μA, LOGV2 = SCALE, LOGV1 = OSADJ, CMVIN = CMVOUT, R
SET
> 1M
,
T
A
= +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGV2 Total Noise
0.1Hz to 10Hz, total output-referred noise,
I
REF
= 10nA, I
LOG
= 100nA
f = 5kHz, I
REF
= 10nA, I
LOG
= 100nA
1Hz to 10Hz, total output-referred noise
f = 5kHz
1Hz to 10Hz, total output-referred noise
f = 5kHz
17
μV
RMS
LOGV2 Spot Noise Density
REFVOUT Total Noise
REFVOUT Spot Noise Density
REFISET Total Noise
REFISET Spot Noise Density
0.8
3.3
266
0.67
23
μV/
√
Hz
μV
RMS
nV/
√
Hz
μV
RMS
nV/
√
Hz
Small-Signal Unity-Gain
Bandwidth
I
REF
= 1μA, I
LOG
= 10μA, R
COMP
= 300
,
C
COMP
= 32pF
1
MHz
Note 1:
All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2:
Guaranteed and functionally verified.
Note 3:
Log conformity error less than ±5mV with scale factor = 0.25V/decade.
Note 4:
Guaranteed by design.
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