AD9243EB datasheet(2/24 Pages) AD

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AD9243–SPECIFICATIONS

DC SPECIFICATIONS

Parameter

AD9243

Units

RESOLUTION

Bits min

MAX CONVERSION RATE

MHz min

INPUT REFERRED NOISE

VREF = 1 V

0.9

LSB rms typ

VREF = 2.5 V

0.36

LSB rms typ

ACCURACY

Integral Nonlinearity (INL)

±2.5

LSB typ

Differential Nonlinearity (DNL)

±0.6

LSB typ

±1.0

LSB max

INL1

±2.5

LSB typ

DNL1

±0.7

LSB typ

No Missing Codes

Bits Guaranteed

Zero Error (@ +25

°C)

0.3

% FSR max

Gain Error (@ +25

°C)2

1.5

% FSR max

Gain Error (@ +25

°C)3

0.75

% FSR max

TEMPERATURE DRIFT

Zero Error

3.0

ppm/

°C typ

Gain Error

20.0

ppm/

°C typ

Gain Error

5.0

ppm/

°C typ

POWER SUPPLY REJECTION

0.1

% FSR max

ANALOG INPUT

Input Span (with VREF = 1.0 V)

V p-p min

Input Span (with VREF = 2.5 V)

V p-p max

Input (VINA or VINB) Range

V min

AVDD

V max

Input Capacitance

pF typ

INTERNAL VOLTAGE REFERENCE

Output Voltage (1 V Mode)

Volts typ

Output Voltage Tolerance (1 V Mode)

±14

mV max

Output Voltage (2.5 V Mode)

2.5

Volts typ

Output Voltage Tolerance (2.5 V Mode)

±35

mV max

Load Regulation

2.0

mV max

REFERENCE INPUT RESISTANCE

Ω typ

POWER SUPPLIES

Supply Voltages

AVDD

V (

±5% AVDD Operating)

DVDD

V (

±5% DVDD Operating)

DRVDD

V (

±5% DRVDD Operating)

Supply Current

IAVDD

23.0

mA max (20 mA typ)

IDRVDD

1.0

mA max (0.5 mA typ)

IDVDD

5.0

mA max (3.5 mA typ)

POWER CONSUMPTION

110

mW typ

145

mW max

NOTES

REF =1 V.

2Including internal reference.

3Excluding internal reference.

4Load regulation with 1 mA load current (in addition to that required by the AD9243).

Specification subject to change without notice.

(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, fSAMPLE = 3 MSPS, VREF = 2.5 V, VINB = 2.5 V, TMIN to TMAX unless

otherwise noted)

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