78M6631-IM/F MAXIM [Maxim Integrated Products], 78M6631-IM/F Datasheet - Page 20

• Manufacturer Part Number: 78M6631-IM/F
• Description: 3-Phase Power-Measurement IC
• Manufacturer: MAXIM [Maxim Integrated Products]

2.4.9 ADC Converter, V3P3A Referenced
Table 13
FIR_LEN = 0, VREF_DIS = 0 and LSB values do not include the 9-bit left shift at the CE input.
1
20
Parameter
Recommended Input Range
(V
Voltage to Current Crosstalk
THD (First 10 harmonics)
Input Impedance
Temperature coefficient of Input
Impedance
LSB size
L = FIR length
Digital Full Scale
L = FIR length
Input Offset (V
Guaranteed by design; not production tested.
V
A
%Power Supply Variation
10
10
LSB
DC Gain Error versus
IN
6
6
*
=
100
∆
250 mV-pk
20 mV-pk
- V3P3A)
Vcrosstalk
V
Nout
Vin
REF
 L


∆
3
shows the performance specifications for the ADC converter, V3P3A referenced. For this data,
⋅
V



. 1
. 4
3
PK
3
25
75
P
357
⋅
3



A
L
cos(
3
IN
nV
3 /



3
- V3P3A)
3 .
∠
/
[M40MHZ,
M26MHZ] =
[00], [10], or [11]
[M40MHZ,
M26MHZ] =
[M40MHZ,
M26MHZ] =
[00], [10], or [11]
[M40MHZ,
M26MHZ] =
[01]
[01]
V
Vin
IN
−
Table 13: ADC Converter Performance Specifications
∠
1
Vcrosstalk
:
)
V
65 Hz, on VA.
Vcrosstalk = largest
measurement on IA or IB
V
64 kpts FFT, Blackman-
Harris window
CKCE = 5 MHz
V
V
V
Hz, V3P3A=3.0 V, 3.6
V
IN
IN
IN
IN
IN
= 200 mV peak,
= 65 Hz,
= 65 Hz
= 65 Hz
= 200 mV pk, 65
Condition
-250
-10
Min
-10
40
1
Typ
1.7
+250
+10
Max
-75
-90
+10
90
50
1
1
1
ppm/%
peak
µV/V
Ω/°C
Unit
LSB
LSB
LSB
LSB
mV
nV/
nV/
mV
Rev 1
dB
dB
kΩ