MSP430 datasheet(7/88 Pages) TI

7 / 88 page

6.5 Electrical Characteristics (continued)

all minimum and maximum values at TA = –40°C to +125°C and all typical values at TA = 25°C, PVDD = VDD = IOVDD =

1.8 V, external or internal VREFIO = 1.25 V, RLOAD = 50 kΩ to GND, CLOAD = 100 pF to GND, and digital inputs at IOVDD or

GND (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOUT DAC OUTPUT CHARACTERISTICS

Output voltage range

RANGE = 0, PVDD = VDD

0.15

1.25

RANGE = 1, PVDD = VDD

0.2

1.0

RANGE = 0, PVDD > 2.7 V, VDD generated

0.3

2.5

RANGE = 1, PVDD > 2.7 V, VDD generated

0.4

2.0

VOUT alarm output high

PVDD > 2.7 V, VDD internally generated

–6%

2.5

+6%

PVDD = VDD

–6%

1.25

+6%

VOUT alarm output low

PVDD > 2.7 V, VDD internally generated

–5%

0.3

+5%

PVDD = VDD

–5%

0.15

+5%

RLOAD

Resistive load(2)

kΩ

CLOAD

Capacitive load(2)

100

Load regulation

DAC at midscale, –1 mA ≤ IOUT ≤ +1 mA

µV/mA

Short-circuit current

Full scale output shorted to GND

Zero output shorted to VDD

Output voltage headroom to PVDD

DAC at full code, IOUT = 1 mA (sourcing)

200

Output voltage footroom to GND

DAC at zero code, IOUT = 1 mA (sinking)

200

DC small signal output impedance

DAC at midscale

mΩ

Output Hi-Z

500

kΩ

Power supply rejection ratio (dc)

DAC at midscale; PVDD = 1.8 V ± 10%

0.1

mV/V

Output voltage drift vs time, 1000 hours

TA = 35°C, VOUT = midscale, ideal VREF

±5

ppm FSR

DIAGNOSTIC ADC

Input voltage range

PVDD = VDD

1.25

PVDD > 2.7 V

2.5

Resolution

Bits

DNL

Differential nonlinearity

Specified 12-bit monotonic

–1

±0.2

LSB

INL

Integral nonlinearity

–4

±1

LSB

Offset error

After calibration

–10

±1.6

LSB

Gain error

–0.8

±0.13

0.8

%FSR

Noise

±4

LSB

Input capacitance

Input bias current

ADC not converting

–50

Acquisition time

µs

Conversion time

210

µs

Conversion rate

3.84

kSPS

Temperature sensor accuracy

°C

INTERNAL OSCILLATOR

Frequency

TA = –40°C to +125°C

1.2165

1.2288

1.2411

MHz

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SLASF21 – DECEMBER 2022

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