140dB Range (1nA to 10mA)
SGM834A
Logarithmic Current-to-Voltage Converter
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃ and VP = 5V, unless otherwise noted.
Logarithmic Conformance Error Distribution
Logarithmic Conformance Error Distribution
5
3
5
3
TJ = -40℃
TJ = +85℃
TJ = 0℃
TJ = +70℃
Mean + 3σ
Mean - 3σ
Mean + 3σ
1
1
-1
-3
-5
-1
-3
-5
Mean - 3σ
0.001 0.01
0.1
1
10
100 1000 10000
0.001 0.01
0.1
1
10
100 1000 10000
IPD (μA)
IPD (μA)
VREF Drift vs. Temperature
Slope Drift vs. Temperature
6
4
15
10
5
Mean + 3σ
Mean + 3σ
2
0
0
-2
-4
-6
-8
-5
-10
-15
-20
Mean - 3σ
Mean - 3σ
-40
-20
0
25
55
85
-40
-20
0
25
55
85
Temperature (℃)
Temperature (℃)
Intercept Drift vs. Temperature
Output Buffer Offset vs. Temperature
8
4
0.4
0.2
0
Mean + 3σ
Mean + 3σ
0
-4
-8
-12
Mean - 3σ
Mean - 3σ
-0.2
-0.4
-40
-20
0
25
55
85
-40
-20
0
25
55
70
85
Temperature (℃)
Temperature (℃)
SG Micro Corp
www.sg-micro.com
FEBRUARY 2022
8
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
