MAX5825 datasheet(9/35 Pages) MAXIM

Part #	MAX5825

Description	Ultra-Small, Octal Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and IC Interface

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Manufacturer	MAXIM [Maxim Integrated Products]

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

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9 / 35 page

MAX5823/MAX5824/MAX5825

Ultra-Small, Octal Channel, 8-/10-/12-Bit Buffered

Output DACs with Internal Reference and I2C Interface

9

Maxim Integrated

Typical Operating Characteristics (continued)

(MAX5825, 12-bit performance, TA = +25°C, unless otherwise noted.)

FULL-SCALE ERROR AND GAIN ERROR

vs. TEMPERATURE

TEMPERATURE (°C)

110

95

65 80

-10 5 20 35 50

-25

-40

125

-0.05

0

0.05

0.10

-0.10

VREF = 2.5V (EXTERNAL)

NO LOAD

GAIN ERROR (VDD = 3V)

GAIN ERROR (VDD = 5V)

FULL-SCALE ERROR

SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

110

95

65 80

-10 5 20 35 50

-25

-40

125

1.2

1.4

1.6

2.0

1.8

1.0

VREF (EXTERNAL) = VDD = 5V

VDD = VDDIO

VOUT_ = FULL SCALE

ALL DACS ENABLED

NO LOAD

VREF (INTERNAL) =

4.096V, VDD = 5V

VREF (INTERNAL) =

2.5V, VDD = 5V

VREF (INTERNAL) =

2.048V, VDD = 5V

VREF (EXTERNAL) = VDD = 3V

SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.1

4.7

3.9

4.3

3.5

3.1

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

2.7

5.5

VDD = VDDIO

VOUT_ = FULL SCALE

ALL DACS ENABLED

NO LOAD

VREF (INTERNAL) = 4.096V

VREF (INTERNAL) = 2.5V

VREF (INTERNAL) =

2.048V

VREF = 2.5V (EXTERNAL)

POWER-DOWN MODE SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.1

4.7

4.3

3.9

3.5

3.1

0.4

0.8

1.2

1.6

2.0

0

2.7

5.5

TA = -40°C

TA = +25°C

TA = +85°C

TA = +125°C

VDD = VDDIO

VREF = 2.5V (EXTERNAL)

POWER-DOWN MODE WITH HI-Z

NO LOAD

IVDD vs. CODE

CODE (LSB)

3584

3072

2560

2048

1536

1024

0.4

0.8

1.2

1.6

2.0

0

512

0

4096

VDD = 5V, VREF = 4.096V

VDD = VREF = 3V

VDD = 5V,

VREF = 2.048V

VDD = 5V,

VREF = 2.5V

VDD = VREF = 5V

NO LOAD

IREF (EXTERNAL) vs. CODE

CODE (LSB)

3584

3072

2560

2048

1536

1024

10

20

30

40

50

60

0

512

0

4096

VDD = VREF

NO LOAD

VREF = 5V

VREF = 3V

MAX5823 toc16

TRIGGER PULSE

5V/div

VOUT

0.5V/div

ZOOMED VOUT

1 LSB/div

4µs/div

SETTLING TO ±1 LSB

(VDD = VREF = 5V, RL = 2kI, CL = 200pF)

3.75µs

1/4 SCALE TO 3/4 SCALE

MAX5823 toc17

TRIGGER PULSE

5V/div

VOUT

0.5V/div

ZOOMED VOUT

1 LSB/div

4µs/div

SETTLING TO ±1 LSB

(VDD = VREF = 5V, RL = 2kI, CL = 200pF)

3/4 SCALE TO 1/4 SCALE

4.3µs

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