MCP39F521 Datasheet, PDF (6/52 Pages) Microchip Technology – I2C Power Monitor with Calculation and Energy Accumulation

MCP39F521
TABLE 1-1: ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all parameters apply at AV_DD, DV_DD = 2.7 to 3.6V, T_A = -40°C
to +125°C, MCLK = 4 MHz, PGA GAIN = 1.
Characteristic
Sym.
Min.
Typ.
Max.
Units
Test Conditions
10-Bit SAR ADC Performance for Temperature Measurement
Resolution
Absolute Input Voltage
Recommended
Impedance of
Analog Voltage Source
N_R
—
V_IN
D_GND - 0.3
R_IN
—
10
—
bits
—
D_VDD + 0.3 V
—
2.5
k
Integral Nonlinearity
Differential Nonlinearity
Gain Error
Offset Error
Temperature
Measurement Rate
I_NL
D_NL
G_ERR
E_OFF
—
±1
±2
LSb
—
±1
±1.5
LSb
—
±1
±3
LSb
—
±1
±2
LSb
—
f_LINE/2^N
—
sps Note 3
Clock and Timings
I²C Clock Frequency
f_SCL
—
Master Clock
f_MCLK
-2%
and Crystal Frequency
—
400
kHz 100 kHz and 400 kHz
I²C modes supported
4
+2%
MHz
Capacitive Loading
COSC2
—
—
15
pF When an external clock is
on OSCO pin
used to drive the device
Internal Oscillator
f_{INT_OSC}
—
2
—
% -40 to +85°C only (Note 7)
Tolerance
Internal Voltage Reference
Internal Voltage
V_REF
-2%
Reference Tolerance
1.2
+2%
V
Temperature Coefficient TCV_REF
—
10
—
ppm/°C T_A = -40°C to +85°C,
V_REFEXT = 0
Output Impedance
ZOUTV_REF
—
2
—
k
Current, V_REF
AI_DDV_REF
—
40
—
µA
Voltage Reference Input
Input Capacitance
—
—
10
pF
Absolute Voltage on
V_REF+ Pin
V_REF+
A_GND + 1.1V
—
A_GND + 1.3V
V
Note 1: Calculated from reading the register values with no averaging, single computation cycle with accumulation
interval of 4 line cycles.
2: Specification by design and characterization; not production tested.
3: N = Value in the Accumulation Interval Parameter register. The default value of this register is 2 or
T_CAL = 80 ms for 50 Hz line.
4: Applies to Voltage Sag and Voltage Surge events only.
5: Applies to all gains. Offset and gain errors depend on the PGA gain setting. See Section 2.0, Typical
Performance Curves for typical performance.
6: V_IN = 1V_PP = 353 mV_RMS @ 50/60 Hz.
7: Variation applies to internal clock and I²C only. All calculated output quantities are temperature
compensated to the performance listed in the respective specification.
DS20005442A-page 6
 2015 Microchip Technology Inc.