Datasheet

MAX4007/MAX4008
High-Accuracy, 76V, High-Side
Current Monitors in SOT23
4 _______________________________________________________________________________________
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
GAIN ERROR vs. TEMPERATURE
MAX4007/08 toc05
TEMPERATURE (°C)
-15 10 35 60 85-40
GAIN ERROR (%)
0
1
2
3
4
5
6
7
8
9
-1
V
BIAS
= 40V
I
REF
= 10nA
I
REF
= 10mA
I
REF
= 2.5mA
I
REF
= 250μA
I
REF
= 2.5μA
I
REF
= 250nA
GAIN ERROR vs. BIAS VOLTAGE
MAX4007/08 toc06
V
BIAS
(V)
20.5 39.0 57.5 76.02.0
GAIN ERROR (%)
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0
0.2
I
REF
= 5mA
I
REF
= 2.5mA
I
REF
= 25μA
I
REF
= 250nA
AGND
B
BGND
A
400ns/div
TRANSIENT RESPONSE
(V
BIAS
= 40V)
MAX4007/8 toc07
A: CH2, 5V/div, I
REF
= 0 TO 2.5mA
B: CH1, 1V/div, I
OUT
= 0 TO 0.25mA
40V
BIAS
CH2
CH1
6.3kΩ
10kΩ
12.1kΩ
D.U.T.
REF OUT
0V
0V
CH2
CH1
STARTUP DELAY
(V
BIAS
= 40V, I
REF
= 250nA)
MAX4007/8 toc08
20ms/div
R
REF
= 158mΩ
R1 = 118mΩ
R
TEST
= 1.67mΩ
CH1: 10V/div
CH2: 20mV/div
V
BIAS
R
TEST
R
REF
BIAS
CH2
13pF
CH1
R1
D.U.T.
REF OUT
BIAS CURRENT
vs. SUPPLY VOLTAGE
MAX4007/08 toc01
SUPPLY VOLTAGE (V)
BIAS CURRENT (mA)
20148
0.1
1
10
0.01
226
I
REF
= 2.5mA
I
REF
= 250nA
BIAS CURRENT
vs. REFERENCE CURRENT
MAX4007/08 toc02
I
REF
(A)
BIAS CURRENT (mA)
1m100μ10μ1μ100n
0.10
1.00
10.00
100.00
0.01
10n 10m
V
BIAS
= 40V
BIAS CURRENT
vs. TEMPERATURE
MAX4007/08 toc03
TEMPERATURE (
°
C)
BIAS CURRENT (mA)
603510-15
0.1
1
10
0.01
-40 85
I
REF
= 2.5mA
I
REF
= 250nA
V
BIAS
= 40V
GAIN ERROR vs.
REFERENCE CURRENT
MAX4007/08 toc04
I
REF
(A)
100n 1μ 10μ 100μ 1m 10m10n
GAIN ERROR (%)
-4
-3
-2
-1
0
1
2
3
4
5
-5
V
BIAS
= 40V
0V
0V
CH2
CH1
STARTUP DELAY
(V
BIAS
= 40V, I
REF
= 2.5mA)
MAX4007/8 toc09
20ms/div
R
REF
= 15.8kΩ
R1 = 0Ω
R
TEST
= 140kΩ
CH1: 10V/div
CH2: 10V/div
V
BIAS
R
TEST
R
REF
BIAS
CH2
13pF
CH1
R1
D.U.T.
REF OUT