MAX1329BETL+ datasheet(6/78 Pages) MAXIM

Part #	MAX1329BETL+

Description	12-/16-Bit DASs with ADC, DACs, DPIOs, APIOs, Reference, Voltage Monitors, and Temp Sensor

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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6 / 78 page

12-/16-Bit DASs with ADC, DACs, DPIOs, APIOs,

Reference, Voltage Monitors, and Temp Sensor

6

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(DVDD = 1.8V to 3.6V, AVDD = 2.7V to 5.5V, VREFDAC = VREFADC = 2.5V, external reference; 10µF capacitor at REFADC and REFDAC;

0.01µF capacitor at REFADJ; TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Temperature Resolution

VREFADC = 2.5V

1/8

°C/LSB

External-Diode Drive Ratio

IDRIVEMIN = 4µA, IDRIVEMAX = 68µA

17:1

Temperature-Sensor Supply

Current

Not including ADC current (Note 3)

100

µA

Temperature-Sensor Conversion

Time

307 clocks per measurement, master clock

= 5.00MHz

65

µs

CHARGE PUMP

Input Voltage

DVDD

1.8

3.6

V

DVDD = 1.8V to 3.0V, VM2CP<2:0> = 001

2.85

3.0

3.20

DVDD = 2.2V to 3.6V, VM2CP<2:0> = 010

3.75

4.0

4.30

No-Load Output Voltage

AVDD

DVDD = 2.7V to 3.6V, VM2CP<2:0> = 011

4.80

5.0

5.40

V

Output Current

Including internal current (Table 32)

25

mA

No-Load Supply Current

DVDD = 2.7V, AVDD = 4V, 39kHz clock

250

µA

Switching Frequency

39

78

kHz

Switch Turn-On/-Off Time

Between DVDD to AVDD, charge pump off

40

ns

Switch Impedance

Shorts DVDD to AVDD, charge pump off

25

50

Ω

Efficiency

25mA load, DVDD = 1.8V, AVDD = 3.0V,

39kHz clock

80

%

DVDD VOLTAGE MONITOR (VM1)

Supply Voltage Range

1.0

3.6

V

VM1<1:0> = 0x,

RST1 input

1.80

1.865

1.93

Trip Threshold (DVDD Falling)

VDTH

VM1<1:0> = x0,

RST2 input

2.65

2.750

2.90

V

VM1<1:0> = 0x,

RST1 input

15

Hysteresis

VDHYS

VM1<1:0> = x0,

RST2 input

22.5

mV

Reset Timeout Period

VDVDD = VDTH + VDHYS

170

ms

Turn-On Time

DVDD = 1.8V, enabled by VM1 <1:0>

2

ms

AVDD VOLTAGE MONITOR (VM2)

Supply Voltage Range

1.0

5.5

V

VM2CP<1:0> = 01

2.53

2.775

2.975

VM2CP<1:0> = 10

3.4

3.700

3.925

Trip Threshold (AVDD Falling)

(Note 6)

VATH

VM2CP<1:0> = 11

4.25

4.625

4.925

V

VM2CP<1:0> = 01

22.5

VM2CP<1:0> = 10

30

Hysteresis

VAHYS

VM2CP<1:0> = 11

37.5

mV

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