Datasheet

Data Sheet 71M6531D/F-71M6532D/F FDS 6531/6532 005
104 Rev 2
Parameter
Condition
Min
Typ
Max
Unit
VREF output impedance
CAL =1,
ILOAD = 10 µA, -10 µA
2.5 kΩ
VNOM definition
a
626
102)22(101)22()22()(
−−
⋅−+⋅−+= TCTTCTVREFTVNOM
V
VNOM temperature coefficients:
TC1
TC2
3.18·(52.46-TRIMT)
-0.444
µV/ºC
µV/°C
2
VREF(T) deviation from VNOM(T)
)40,22max(
10
)(
)()(
6
−
−
TTVNOM
TVNOMTVREF
-40
1
+40
1
PPM/ºC
VREF aging
±25
PPM/
year
1
Guaranteed by design; not production tested.
a
This relationship describes the nominal behavior of VREF at different temperatures.
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
Unit
Recommended Input Range
(Vin-V3P3A)
-250 250 mV
peak
Voltage to Current Crosstalk
)cos(
*10
6
VcrosstalkVin
Vin
Vcrosstalk
∠−∠
Vin = 200 mV peak,
65 Hz, on VA.
Vcrosstalk = largest
measurement on IA or IB
-10
1
10
1
μV/V
THD (First 10 harmonics)
1
:
250 mV-pk
20 mV-pk
Vin=65 Hz,
64 kpts FFT, Blackman-
Harris window
CKCE = 5 MHz
-75
-90
dB
dB
Input Impedance
Vin = 65 Hz
40
90
kΩ
Temperature coefficient of Input Im-
pedance
Vin = 65 Hz
1.7
Ω/°C
LSB size
3
3
75.4
25.1






⋅⋅=
L
VV
REFLSB
L = FIR length
[M40MHZ,
M26MHZ] =
[00], [10], or [11]
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
3231
355
150
nV/
LSB
[M40MHZ,
M26MHZ] =
[01]
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
1319
150
42
nV/
LSB
Digital Full Scale
3
3






L
L
= FIR length
[M40MHZ,
M26MHZ] =
[00], [10], or [11]
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
±97336
±884736
±2097152
LSB
[M40MHZ,
M26MHZ] =
[01]
FIR_LEN[1:0]=0
FIR_LEN[1:0]=1
FIR_LEN[1:0]=2
±238328
±2097152
±7529536
LSB