Datasheet

MSP430FW429, MSP430FW428
MSP430FW427, MSP430FW425, MSP430FW423
www.ti.com SLAS383E –OCTOBER 2003–REVISED DECEMBER 2013
Scan IF, 10-bit DAC
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
AV
CC
= DV
CC
(connected together)
AV
CC
Analog supply voltage 2.2 3.6 V
AV
SS
= DV
SS
(connected together)
2.2 V 23 45
Scan IF 10-bit DAC operating C
L
at SIFCOM pin = 470 nF ±20%,
AI
CC
µA
supply current into AV
CC
terminal f
refresh(SIFCOM)
= 32768 Hz
3 V 33 60
Resolution 10 bit
R
L
= 1000 MΩ,
INL Integral nonlinearity 2.2 V, 3 V ±2 ±5 LSB
C
L
= 20 pF
R
L
= 1000 MΩ,
DNL Differential nonlinearity 2.2 V, 3 V ±1 LSB
C
L
= 20 pF
E
ZS
Zero scale error 2.2 V, 3 V ±10 mV
E
G
Gain error 2.2 V, 3 V 0.6 %
R
O
Output resistance 25 50 kΩ
On time after AV
CC
of SIFDAC is
t
on(SIFDAC)
V
+SIFCA
- V
SIFDAC
= ± 6 mV 2.2 V, 3 V 2 µs
switched on
SIFDAC code = 1C0h → 240h,
2.2 V, 3 V 2
V
SIFDAC(240h)
- V
+SIFCA
= +6 mV
t
Settle(SIFDAC)
Settling time µs
SIFDAC code = 240h → 1C0h,
2.2 V, 3 V 2
V
SIFDAC(1C0h)
- V
+SIFCA
= -6 mV
Scan IF, Comparator
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
AV
CC
= DV
CC
(connected together),
AV
CC
Analog supply voltage 2.2 3.6 V
AV
SS
= DV
SS
(connected together)
2.2 V 25 35 µA
Scan IF comparator operating
AI
CC
supply current into AV
CC
terminal
3 V 35 50
Common mode input voltage AV
CC
-
V
IC
2.2 V, 3 V 0.9 V
range
(1)
0.6
V
Offset
Input offset voltage 2.2 V, 3 V ±30 mV
dV
Offset
/dT Temperature coefficient of V
Offset
2.2 V, 3 V 10 µV/°C
V
Offset
supply voltage (V
CC
)
dV
Offset
/dV
CC
2.2 V, 3 V 0.3 mV/V
sensitivity
2.2 V 0 18
V
hys
Input voltage hysteresis V+terminal = V-terminal = 0.5 x V
CC
mV
3 V 0 18
On time after SIFCA is switched V
+SIFCA
- V
SIFDAC
= +6 mV,
t
on(SIFCA)
2.2 V, 3 V 2 µs
on V
+SIFCA
= 0.5 x AV
CC
V
+SIFCA
- V
SIFDAC
= -12 mV → 6 mV,
t
Settle(SIFCA)
Settle time 2.2 V, 3 V 2.0 µs
V
+SIFCA
= 0.5 x AV
CC
(1) The comparator output is reliable when at least one of the input signals is within the common mode input voltage range.
Copyright © 2003–2013, Texas Instruments Incorporated Submit Documentation Feedback 37
Product Folder Links: MSP430FW429 MSP430FW428 MSP430FW427 MSP430FW425 MSP430FW423