DS_6618_005 78M6618 Data Sheet
Rev. 1.4 19
2.4.11 LCD Drivers
The information in Table 15 applies to all COM and SEG pins with LCD_DAC[2:0] = 000.
Table 15: LCD Driver Performance Specifications
Parameter Condition Min Typ Max Unit
VLC2 Voltage With respect to VLCD
1
-0.1 +0.1 V
VLC0 Voltage,
½ bias
With respect to VLC2/2
-4
+1
%
VLC0 Impedance
I
LOAD = 100 µA (Isink)
9 15
kΩ
ILOAD = -100 µA (Isource)
9 15
1
VLCD is V3P3SYS in MISSION mode and VBAT in BROWNOUT and LCD modes.
2.4.12 Optical Interface
Table 16: Optical Interface Performance Specifications
Parameter Condition Min Typ Max Unit
OPT_TX VOH (V3P3D-OPT_TX) ISOURCE = 1 mA 0.4 V
OPT_TX VOL ISINK = 20 mA 0.7 V
2.4.13 Temperature Sensor
Table 17 shows the performance for the temperature sensor. The LSB values do not include the 8-bit left
shift at CE input.
Table 17: Temperature Sensor Performance Specifications
Parameter Condition Min Typ Max Unit
Nominal relationship: N(T) = S
n
*(T-T
n
) + N
n
, T
n
= 25ºC
Nominal
Sensitivity (S
n
)
3
n
3
L
00107.0S
=
[M26MHZ, M40MH] =
[00], [01], or [11]
FIR_LEN=0 (L=138)
FIR_LEN=1 (L=288)
-104
-947
LSB/ºC
[M26MHZ, M40MHZ] =
[10]
FIR_LEN=0 (L=186)
-255
Nominal Offset
(N
n
)
4
3
n
3
L
510.0N
=
[M26MHZ, M40MH] =
[00], [01], or [11]
FIR_LEN=0 (L=138)
FIR_LEN
=1 (L=288)
49641
451200
LSB
[M26MHZ, M40MHZ] =
[10]
FIR_LEN=0 (L=186)
121500
Temperature Error
2
+
=
n
n
n
T
S
NTN
TERR
))((
T
n
= 25°C,
T = -40ºC to +85ºC
-10
1
10
1
ºC
1
Guaranteed by design; not production tested.
2
N
n
is measured at T
n
during measurement calibration and is stored in MPU or CE for use in temperature
calculations.
78M6618 Data Sheet DS_6618_005
20 Rev. 1.4
2.4.14 VREF
Table 18 shows the performance specifications for VREF. Unless otherwise specified, VREF_DIS = 0.
Table 18: VREF Performance Specifications
Parameter Condition Min Typ Max Unit
VREF output voltage, VREF(22) Ta = 22ºC 1.193 1.195 1.197 V
VREF chop step 40 mV
VREF power supply sensitivity
ΔVREF / ΔV3P3A
V3P3A = 3.0 to 3.6 V
-1.5 1.5 mV/V
VREF input impedance
VREF_DIS = 1,
VREF = 1.3 to 1.7 V
100
VREF output impedance
CAL =1,
I
LOAD = 10 µA, -10 µA
2.5
VNOM definition
2
2)22(1)22()22()(
2
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.
2
This relationship describes the nominal behavior of VREF at different temperatures.
DS_6618_005 78M6618 Data Sheet
Rev. 1.4 21
2.4.15 ADC Converter, V3P3A Referenced
Table 19 shows the performance specifications for the ADC converter, V3P3A referenced. For this data,
FIR_LEN=0, VREF_DIS=0 and LSB values do not include the 9-bit left shift at the CE input.
Table 19: 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
Temperature coefficient of Input
Impedance
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=0
FIR_LEN=1
3231
355
nV/
LSB
[M40MHZ,
M26MHZ] =
[01]
FIR_LEN=0
1319
nV/
LSB
Digital Full Scale
3
3
L
L = FIR length
[M40MHZ,
M26MHZ] =
[00], [10], or [11]
FIR_LEN=0
FIR_LEN=1
±97336
±884736
LSB
[M40MHZ,
M26MHZ] =
[01]
FIR_LEN=0
±238328
LSB
ADC Gain Error versus
%Power Supply Variation
3.3/33100
/35710
6
APV
VnVNout
INPK
Vin=200 mV pk, 65 Hz
V3P3A=3.0 V, 3.6 V
50 ppm/%
Input Offset (Vin-V3P3A) -10 10 mV
1
Guaranteed by design; not production tested.

78M6618-MR/F/P2

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
IC PWR MEASUREMENT OCTAL 68QFN
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