71M6531D_10 Datasheet, PDF (104/120 Pages) Teridian Semiconductor Corporation – Energy Meter IC

Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
Parameter
VNOM temperature coefficients:
TC1
TC2
VREF(T) deviation from VNOM(T)
VREF(T ) − VNOM (T )
10 ⁶
VNOM (T )
max(T − 22 ,40)
Condition
Min Typ Max
3.18·(52.46-TRIMT)
-0.444
-40
+40
VREF aging
±25
a _{This relationship describes the nominal behavior of VREF at different temperatures.}
Unit
µV/ºC
µV/°C²
PPM/ºC
PPM/
year
5.4.15 ADC Converter, V3P3A Referenced
Table 84 shows the performance specifications for the ADC converter, V3P3A referenced. For this data,
FIR_LEN[1:0]=0, VREF_DIS=0 and LSB values do not include the 8-bit left shift at the CE input.
Table 84: ADC Converter Performance Specifications
Parameter
Condition
Min
Typ
Max
Recommended Input Range
(Vin-V3P3A)
-250
250
Voltage to Current Crosstalk
Vin = 200 mV peak,
-10
10
10⁶ *Vcrosstalk _{cos(∠Vin − ∠Vcrosstalk)}
Vin
65 Hz, on VA.
Vcrosstalk = largest
measurement on IA or IB
THD (First 10 harmonics) ¹:
Vin=65 Hz,
250 mV-pk
64 kpts FFT, Blackman-
-75
20 mV-pk
Harris window
-90
CKCE = 5 MHz
Input Impedance
Vin = 65 Hz
40
90
Temperature coefficient of Input Im- Vin = 65 Hz
1.7
pedance
LSB size
[M40MHZ,
V_LSB
= V_REF
⋅ ^1.25
4.75
⋅ 

3 ³

L
M26MHZ] =
[00], [10], or [11]
L = FIR length
[M40MHZ,
M26MHZ] =
[01]
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
3231
355
150
1319
150
42
Digital Full Scale [M40MHZ,
 L ³
M26MHZ] =

3
[00], [10], or [11]
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
±97336
±884736
±2097152
L = FIR length
[M40MHZ,
M26MHZ] =
[01]
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
±238328
±2097152
±7529536
Unit
mV
peak
μV/V
dB
dB
kΩ
Ω/°C
nV/
LSB
nV/
LSB
LSB
LSB
ADC Gain Error versus
%Power Supply Variation
10⁶ ∆Nout_PK 357nV /V_IN
100 ∆V 3P3A / 3.3
Vin=200 mV pk, 65 Hz
V3P3A=3.0 V, 3.6 V
50 ppm/%
Input Offset (Vin-V3P3A)
-10
10
mV
104
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