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AD574ATX2

Complete 12-Bit A/D Converter

Analog Devices 

AD574A–SPECIFICATIONS (@ +25؇C with VCC = +15 V or +12 V, VLOGIC = +5 V, VEE = –15 V or –12 V

unless otherwise noted)

Model

RESOLUTION

LINEARITY ERROR @ +25°C

TMIN to TMAX

DIFFERENTIAL LINEARITY ERROR

(Minimum Resolution for Which No

Missing Codes are Guaranteed)

TMIN to TMAX

UNIPOLAR OFFSET (Adjustable to Zero)

AD574AJ

Min

Typ Max

12

±1

±1

11

±2

BIPOLAR OFFSET (Adjustable to Zero)

±4

FULL-SCALE CALIBRATION ERROR

(With Fixed 50 Ω Resistor from REF OUT to REF IN)

(Adjustable to Zero)

0.25

TEMPERATURE RANGE

0

+70

TEMPERATURE COEFFICIENTS

(Using Internal Reference)

TMIN to TMAX

Unipolar Offset

Bipolar Offset

Full-Scale Calibration

± 2 (10)

± 2 (10)

± 9 (50)

POWER SUPPLY REJECTION

Max Change in Full-Scale Calibration

VCC = 15 V ± 1.5 V or 12 V ± 0.6 V

VLOGIC = 5 V ± 0.5 V

VEE = –15 V ± 1.5 V or –12 V ± 0.6 V

ANALOG INPUT

Input Ranges

Bipolar

Unipolar

Input Impedance

10 Volt Span

20 Volt Span

DIGITAL CHARACTERISTICS1 (TMIN–TMAX)

Inputs2 (CE, CS, R/C, A0)

Logic “1” Voltage

Logic “0” Voltage

Current

Capacitance

Output (DB11–DB0, STS)

Logic “1” Voltage (ISOURCE ≤ 500 µA)

Logic “0” Voltage (ISINK ≤ 1.6 mA)

Leakage (DB11–DB0, High-Z State)

Capacitance

±2

± 1/2

±2

–5

+5

–10

+10

0

+10

0

+20

3

5

7

6

10

14

+2.0

+5.5

–0.5

+0.8

–20

+20

5

+2.4

+0.4

–20

+20

5

POWER SUPPLIES

Operating Range

VLOGIC

VCC

VEE

Operating Current

ILOGIC

ICC

IEE

POWER DISSIPATION

+4.5

+11.4

–11.4

+5.5

+16.5

–16.5

30

40

2

5

18

30

390

725

INTERNAL REFERENCE VOLTAGE

9.98

Output Current (Available for External Loads)3

(External Load Should not Change During Conversion)

PACKAGE OPTIONS4

Ceramic (D-28)

Plastic (N-28)

PLCC (P-28A)

LCC (E-28A)

10.0 10.02

1.5

AD574ASD

AD574AJN

AD574AJP

AD574AJE

NOTES

1Detailed Timing Specifications appear in the Timing Section.

212/8 Input is not TTL-compatible and must be hard wired to VLOGIC or Digital Common.

3The reference should be buffered for operation on ± 12 V supplies.

4D = Ceramic DIP; N = Plastic DIP; P = Plastic Leaded Chip Carrier.

Specifications subject to change without notice.

AD574AK

Min

Typ Max

12

± 1/2

± 1/2

AD574AL

Min Typ

Max

12

± 1/2

± 1/2

Units

Bits

LSB

LSB

12

12

Bits

±1

±1

LSB

±4

±2

LSB

0.25

0.125 % of FS

0

+70

0

+70 °C

± 1 (5)

± 1 (5)

± 5 (27)

± 1 (5) LSB (ppm/°C)

± 1 (5) LSB (ppm/°C)

± 2 (10) LSB (ppm/°C)

±1

±1

LSB

± 1/2

± 1/2 LSB

±1

±1

LSB

–5

+5

–5

+5 Volts

–10

+10

–10

+10 Volts

0

+10

0

+10 Volts

0

+20

0

+20 Volts

3

5

7

3

5

7

kΩ

6

10

14

6

10

14

kΩ

+2.0

–0.5

–20

5

+2.4

–20

5

+5.5

+0.8

+20

+0.4

+20

+2.0

–0.5

–20

5

+2.4

–20

5

+5.5 Volts

+0.8 Volts

+20 µA

pF

Volts

+0.4 Volts

+20 µA

pF

+4.5

+11.4

–11.4

9.98

+5.5

+16.5

–16.5

30

40

2

5

18

30

390

725

10.0 10.02

1.5

+4.5

+11.4

–11.4

30

2

18

390

9.99 10.0

+5.5 Volts

+16.5 Volts

–16.5 Volts

40

mA

5

mA

30

mA

725 mW

10.01 Volts

1.5 mA

AD574AKD

AD574AKN

AD574AKP

AD574AKE

AD574ALD

AD574ALN

–2–

REV. B

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