STPMS2H-PUR Datasheet, PDF (15/33 Pages) STMicroelectronics – Smart sensor II dual-channel 1-bit, 4 MHz, second-order sigma-delta modulator with embedded PGLNA

STPMS2
Typical performance characteristics
7
Typical performance characteristics
Figure 7. V_REF/V_REF at 25 deg vs. temp
Figure 8. SNHR of I channel, gain 16x
90
80
70
60
50
40
30
20
10
0
-10
10
AM09901v1
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, -30deg
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 0deg
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 25deg
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 60deg
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 85deg
100
1000
10000
100000
1000000
I peak-peak [µV]
Figure 9. SNHR of I channel, gain 2x
Figure 10. SNHR of V channel, gain 2x
90
80
70
60
50
40
30
20
10
0
-10
-20
10
AM09902v1
60
50
40
30
20
10
0
Current 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, -30deg
-10
Current 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 0deg
-20
Current 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 25deg
Current 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 60deg
-30
Current 2x, Fsig = 55Hz, LP mode 2.047MHz, 3.3V, 85deg
-40
100
1000
10000
100000
1000000
10000000
100
I peak-peak [µV]
AM09903v1
1000
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, -30deg
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 0deg
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 25deg
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 60deg
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 85deg
10000
100000
U peak-peak [µV]
1000000
10000000
Figure 11. SINAD of I channel, gain 16x (temp. Figure 12. SINAD of I channel, gain 16x (temp.
variation)
variation)
90
80
70
60
50
40
30
20
10
0
-10
10
AM09904v1
60
AM09905v1
50
40
30
20
10
0
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, -30deg
-10
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, -30deg
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 0deg
-20
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 25deg
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 0deg
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 25deg
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 60deg
-30
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 60deg
Current 16x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 85deg
-40
Voltage 2x, Fsig = 55Hz, HP mode 2.047MHz, 3.3V, 85deg
100
1000
10000
100000
1000000
100
1000
10000
100000
1000000
10000000
I peak-peak [µV]
U peak-peak [µV]
Doc ID 16525 Rev 3
15/33