AD7226KN datasheet(3/17 Pages) AD

Nome de Peças	AD7226KN

Descrição Electrónicos	LC2MOS Quad 8-Bit D/A Converter

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Fabricante Electrônico	AD [Analog Devices]

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REV.

–2–

AD7226–SPECIFICATIONS

(VDD = 11.4 V to 16.5 V, VSS = –5 V

10%, AGND = DGND = 0 V; VREF = +2 V to (VDD – 4 V)

1,

unless otherwise noted. All Specifications TMIN to TMAX unless otherwise noted.)

DUAL SUPPLY

Parameter

K, B Versions

2

Unit

Conditions/Comments

STATIC PERFORMANCE

Resolution

8

Bits

Total Unadjusted Error

±1LSB max

VDD = 15 V

± 5%, VREF = 10 V

Relative Accuracy

±0.5

LSB max

Differential Nonlinearity

±1LSB max

Guaranteed Monotonic

Full-Scale Error

±0.5

LSB max

Full-Scale Temperature Coefficient

±20

ppm/

∞C typ

VDD = 14 V to 16.5 V, VREF = +10 V

Zero Code Error

±20

mV max

Zero Code Error Temperature Coefficient

±50

mV/∞C typ

REFERENCE INPUT

Voltage Range

2 to (VDD – 4)

V min to V max

Input Resistance

2

k

W min

Input Capacitance

3

50

pF min

Occurs when each DAC is loaded with all 0s.

200

pF max

Occurs when each DAC is loaded with all 1s.

DIGITAL INPUTS

Input High Voltage, VINH

2.4

V min

Input Low Voltage, VINL

0.8

V max

Input Leakage Current

±1

mA max

VIN = 0 V or VDD

Input Capacitance

8

pF max

Input Coding

Binary

DYNAMIC PERFORMANCE

Voltage Output Slew Rate

4

2.5

V/

ms min

Voltage Output Settling Time

4

ms max

VREF = 10 V; Settling Time to

±1/2 LSB

Digital Crosstalk

10

nV secs typ

Minimum Load Resistance

2

k

W min

VOUT = 10 V

POWER SUPPLIES

VDD Range

11.4/16.5

V min/V max

For Specified Performance

IDD

13

mA max

Outputs Unloaded; VIN = VINL or VINH

ISS

11

mA max

Outputs Unloaded; VIN = VINL or VINH

SWITCHING CHARACTERISTICS

4, 5

Address to Write Setup Time, tAS

0ns min

Address to Write Hold Time, tAH

0ns min

Data Valid to Write Setup Time, tDS

50

ns min

Data Valid to Write Hold Time, tDH

0ns min

Write Pulsewidth, tWR

50

ns min

NOTES

1Maximum possible reference voltage.

2Temperature ranges are as follows:

K Version: –40

∞C to +85∞C

B Version: –40

∞C to +85∞C

3Guaranteed by design. Not production tested.

4Sample Tested at 25

∞C to ensure compliance.

5Switching Characteristics apply for single and dual supply operation.

Specifications subject to change without notice.

4

o

f

1

4

D

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