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STPM32 Datasheet(PDF) 8 Page - STMicroelectronics

Part # STPM32
Description  ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA
PDF  89 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM32 Datasheet(HTML) 8 Page - STMicroelectronics

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4
Electrical characteristics
VCC= 3.3 V, CL= 1 μF between VDDA and GNDA, CL= 4.7 μF between VDDD and GNDD, CL= 1 μF between
VCC and GND, CL = 100 nF between VREF1, 2 and GNDREF, FCLK = 16 MHz, TAMB = 25 °C, EN = VCC, SPI/
UART not used, unless otherwise specified.
Table 4. Electrical characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
General section
TOP
Operating junction temperature
range
-
-40
-
105
°C
VCC
Operating supply voltage
-
2.95
3.3
3.65
V
ICC
Operating current
STPM32
-
4.3
-
mA
STPM33
-
5.0
-
STPM34
-
5.9
-
STPM34
Primary channel ON: ENVREF1 = 1,
enV1 = enC1 = 1
Secondary channel OFF: ENVREF2 =
0, enV2 = enC2 = 0
-
4.5
-
STPM34
Primary current channel ON only:
ENVREF1 = 1, enV1 = 0, enC1 = 1
Secondary channel OFF: ENVREF2 =
0, enV2 = enC2 = 0
-
4.0
-
FCLK
Nominal frequency
-
-
16
-
MHz
t_comm
Interface selection timing
-
125
-
-
ns
External Clock Source(1)
Duty cycle
Duty cycle of CLKIN signal
-
40
-
60
%
t_rise
Rise time (10% to 90%) of CLKIN
signal
-
-
-
3
ns
Crystal Oscillator(1)
Gm_crit_ma
x
Maximum critical crystal gm
-
-
-
0.46
mA/V
DL
Drive level
-
-
100
-
uW
COSC_IN
Internal capacitance of oscillator
inputs
-
-
4
-
pF
Power management (VDDA, VDDD, GNDA, GNDD, GND_REG, EN)
VPOR
Power-on-reset on VCC
-
-
2.5
-
V
ISTBY
Standby current consumption
EN = GND
-
< 1
-
μA
VDDA
Analog regulated voltage
-
-
2.85
-
V
VDDD
Digital regulated voltage
-
-
1.2
-
V
PSRRREGS Power supply rejection ratio(1)
50 Hz
-
50
-
dB
On-chip reference voltage (VREF1, VREF2)
VREF
Reference voltage
No load on VREF pin, TC = 010
(default)
-
1.18
-
V
TC
Temperature coefficient(2)
Default
-
30
-
ppm/°C
TC step
TC programmable step(2)
-
-
±30
-
ppm/°C
STPM32, STPM33, STPM34
Electrical characteristics
DS10272 - Rev 13
page 8/89



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