Datasheet

REV. 0
–2–
AD9241–SPECIFICATIONS
DC SPECIFICATIONS
Parameter AD9241 Units
RESOLUTION 14 Bits min
MAX CONVERSION RATE 1.25 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
INL
1
±2.5 LSB typ
DNL
1
±0.7 LSB typ
No Missing Codes 14 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
2
20.0 ppm/°C typ
Gain Error
3
5.0 ppm/°C typ
POWER SUPPLY REJECTION 0.1 % FSR max
ANALOG INPUT
Input Span (with VREF = 1.0 V) 2 V p-p min
Input Span (with VREF = 2.5 V) 5 V p-p max
Input (VINA or VINB) Range 0 V min
AVDD V max
Input Capacitance 16 pF typ
INTERNAL VOLTAGE REFERENCE
Output Voltage (1 V Mode) 1 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
4
5.0 mV max
REFERENCE INPUT RESISTANCE 5 kΩ typ
POWER SUPPLIES
Supply Voltages
AVDD +5 V (±5% AVDD
Operating)
DVDD +5 V (±5% DVDD
Operating)
DRVDD +5 V (±5% DRVDD
Operating)
Supply Current
IAVDD 13.0 mA max (10 mA typ )
IDRVDD 1.0 mA max (1 mA typ )
IDVDD 3.0 mA max (2 mA typ )
POWER CONSUMPTION 65 mW typ
85 mW max
NOTES
1
VREF =1 V.
2
Including internal reference.
3
Excluding internal reference.
4
Load regulation with 1 mA load current (in addition to that required by the AD9241).
Specification subject to change without notice.
(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, f
SAMPLE
= 1.25 MSPS, VREF = 2.5 V, VINB = 2.5 V,
T
MIN
to T
MAX
unless otherwise noted)