MAX4207 Maxim, MAX4207 Datasheet - Page 2

• Manufacturer Part Number: MAX4207
• Description: The MAX4207 logarithmic amplifier computes the log ratio of an input current relative to a reference current (externally or internally generated) and provides a corresponding voltage output with a default -0
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND, unless otherwise noted.)
V
V
Supply Voltage (V
REFVOUT ....................................................(V
OSADJ, SCALE, REFISET ...........................(V
REFIIN, LOGIIN ........................................(V
LOGV1, LOGV2, CMVOUT,
CMVIN............................................................(V
Precision Transimpedance Logarithmic
Amplifier with Over 5 Decades of Dynamic Range
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS—Dual-Supply Operation
(V
T
2
CC
EE
A
Supply Voltage
Supply Current
LOGIIN Current Range
(Notes 3, 4)
REFIIN Current Range
(Notes 3, 4)
Common-Mode Voltage
Common-Mode Voltage Input
Range
Log Conformity Error
Logarithmic Slope (Scale Factor)
Logarithmic Slope (Scale Factor)
Temperature Drift
Input Offset Voltage
Input Offset Voltage Temperature
Drift
Voltage Reference Output
CC
REFIOUT ......................................(V
= -40°C to +85°C. Typical values are at T
............................................................................-6V to +0.3V
...........................................................................-0.3V to +6V
_______________________________________________________________________________________
= +5V, V
PARAMETER
EE
CC
= -5V, GND = 0, I
to V
EE
) .............................................. +12V
REF
V
SYMBOL
V
EE
V
REFVOUT
CMVOUT
= 1µA, I
I
CMVIN
V
V
I
V
V
- 0.3V) to (V
I
LOG
V
REF
CC
IOS
CC
K
EE
LC
IO
EE
A
EE
EE
- 0.3V) to V
= +25°C, unless otherwise noted.) (Note 1)
EE
- 0.3V) to +3.0V
- 0.3V) to +5.5V
LOG
- 0.3V) to +1V
(Note 2)
(Note 2)
T
T
Minimum
Maximum
Minimum
Maximum
I
I
K = -0.25V/decade
(Note 4)
T
T
T
T
|V
|V
T
T
REF
LOG
A
A
A
A
A
A
A
A
CMVIN
CMVIN
CC
= 10µA, LOGV2 = SCALE, LOGV1 = OSADJ, CMVIN = CMVOUT, R
= +25°C
= +25°C
= +25°C, |V
= +25°C
= -40°C to +85°C
= -40°C to +85°C
= -40°C to +85°C
= -40°C to +85°C (Note 4)
= 10nA to 1mA,
= 10nA,
+ 0.3V)
CMVIN
- V
- V
LOGIIN
REFIIN
CMVIN
CONDITIONS
|, |V
|
Continuous Current (REFIIN, LOGIIN) ................................10mA
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) ...1349mW
CMVIN
- V
T
T
REFIIN
A
A
= +25°C
= -40°C to +85°C
- V
|,
LOGIIN
|
-231.25
-237.5
1.218
1.195
MIN
-2.7
2.7
10
10
0
A
= +70°C)
1.238
-250
TYP
0.6
±2
80
5
0
6
- 268.75
-262.5
1.258
1.275
MAX
±10
-5.5
5.5
7.5
0.5
±5
6
1
1
5
SET
decade/
decade
UNITS
> 1MΩ,
µV/°C
mV/
mA
mA
mA
mV
µV/
mV
nA
nA
°C
V
V
V
V