MSP430F2619S-HT Datasheet, PDF (64/90 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2619S-HT
SLAS697B – MARCH 2010 – REVISED JUNE 2011
www.ti.com
12-Bit ADC Temperature Sensor and Built-In V_MID – Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
I_SENSOR
PARAMETER
Operating supply current into
AV_CC terminal⁽¹⁾
TEST CONDITIONS
REFON = 0, INCH = 0Ah,
ADC12ON = 1, T_A = 25°C
V_CC
2.2 V
3V
MIN TYP
40
60
MAX
120
160
V_Sensor ⁽²⁾
Sensor output voltage⁽³⁾
TC_SENSOR ⁽²⁾
t_{Sensor(sample)} ⁽²⁾
Sample time required
if channel 10 is selected ⁽⁴⁾
ADC12ON = 1, INCH = 0Ah,
T_A = 0°C
ADC12ON = 1, INCH = 0Ah
ADC12ON = 1, INCH = 0Ah,
Error of conversion result ≤ 1 LSB
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
986
3.55
30
I_VMID
Current into divider
at channel 11⁽⁵⁾
ADC12ON = 1, INCH = 0Bh
2.2 V
3V
NA
NA
V_MID
AV_CC divider at channel 11
ADC12ON = 1, INCH = 0Bh,
V_MID is ≉ 0.5 × V_AVCC
2.2 V
3V
1.1 1.1±0.04
1.5 1.5 ±0.04
t_VMID(sample)
Sample time required
if channel 11 is selected ⁽⁶⁾
ADC12ON = 1, INCH = 0Bh,
Error of conversion result ≤ 1 LSB
2.2 V
3V
1400
1220
UNIT
μA
mV
mV/°C
μs
μA
V
ns
(1) The sensor current I_SENSOR is consumed if (ADC12ON = 1 and REFON = 1) or (ADC12ON = 1 and INCH = 0Ah and sample signal is
high). When REFON = 1, I_SENSOR is included in I_REF+. When REFON = 0, I_SENSOR applies during conversion of the temperature sensor
input (INCH = 0Ah).
(2) Limits characterized
(3) The temperature sensor offset can be as much as ±20°C. A single-point calibration is recommended to minimize the offset error of the
built-in temperature sensor.
(4) The typical equivalent impedance of the sensor is 51 kΩ. The sample time required includes the sensor-on time t_SENSOR(on).
(5) No additional current is needed. The V_MID is used during sampling.
(6) The on-time t_VMID(on) is included in the sampling time t_VMID(sample); no additional on time is needed.
12-Bit DAC Supply Specifications – Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
AV_CC Supply voltage range
TEST CONDITIONS
T_A
V_CC
AV_CC = DV_CC,
AV_SS = DV_SS = 0 V
DAC12AMPx = 2, DAC12IR = 0,
DAC12_xDAT = 0x0800
-55°C to 85°C
105°C
MIN TYP
2.2
50
69
I_DD
Supply current,
single DAC channel^{(1) (2)}
PSSR
Power-supply rejection
ratio ^{(3) (4)}
DAC12AMPx = 2, DAC12IR = 1,
DAC12_xDAT = 0x0800,
V_eREF+ = V_REF+ = AV_CC
DAC12AMPx = 5, DAC12IR = 1,
DAC12_xDAT = 0x0800,
V_eREF+ = V_REF+ = AV_CC
DAC12AMPx = 7, DAC12IR = 1,
DAC12_xDAT = 0x0800,
V_eREF+ = V_REF+ = AV_CC
DAC12_xDAT = 800h, V_REF =
1.5 V,
ΔAV_CC = 100 mV
DAC12_xDAT = 800h, V_REF =
1.5 V or 2.5 V,
ΔAV_CC = 100 mV
50
2.2 V/3 V
200
700
70
2.2 V/3 V
70
MAX UNIT
3.6 V
110
150
130
μA
440
1500
dB
(1) No load at the output pin, DAC12_0 or DAC12_1, assuming that the control bits for the shared pins are set properly.
(2) Current into reference terminals not included. If DAC12IR = 1 current flows through the input divider; see Reference Input specifications.
(3) PSRR = 20 × log{ΔAV_CC/ΔV_{DAC12_xOUT}}
(4) V_REF is applied externally. The internal reference is not used.
64
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