Datasheet

AD9649
Rev. 0 | Page 4 of 32
SPECIFICATIONS
DC SPECIFICATIONS
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, 50% duty
cycle clock, unless otherwise noted.
Table 1.
Parameter Temp
AD9649-20/AD9649-40 AD9649-65 AD9649-80
Unit Min Typ Max Min Typ Max Min Typ Max
RESOLUTION Full 14 14 14 Bits
ACCURACY
No Missing Codes Full Guaranteed Guaranteed Guaranteed
Offset Error Full −0.40 +0.05 +0.50 −0.40 +0.05 +0.50 −0.40 +0.05 +0.50 % FSR
Gain Error
1
Full −1.5 −1.5 −1.5 % FSR
Differential Nonlinearity (DNL)
2
Full ±0.50 +0.55 ±0.65 LSB
25°C ±0.25 ±0.3 ±0.35 LSB
Integral Nonlinearity (INL)
2
Full ±1.30 ±1.30 ±1.75 LSB
25°C ±0.50 ±0.50 ±0.60 LSB
TEMPERATURE DRIFT
Offset Error Full ±2 ±2 ±2 ppm/°C
INTERNAL VOLTAGE REFERENCE
Output Voltage (1 V Mode) Full 0.984 0.996 1.008 0.984 0.996 1.008 0.984 0.996 1.008 V
Load Regulation Error at 1.0 mA Full 2 2 2 mV
INPUT-REFERRED NOISE
VREF = 1.0 V 25°C 0.98 0.98 0.98 LSB rms
ANALOG INPUT
Input Span, VREF = 1.0 V Full 2 2 2 V p-p
Input Capacitance
3
Full 6 6 6 pF
Input Common-Mode Voltage Full 0.9 0.9 0.9 V
Input Common-Mode Range Full 0.5 1.3 0.5 1.3 0.5 1.3 V
REFERENCE INPUT RESISTANCE Full 7.5 7.5 7.5 kΩ
POWER SUPPLIES
Supply Voltage
AVDD Full 1.7 1.8 1.9 1.7 1.8 1.9 1.7 1.8 1.9 V
DRVDD Full 1.7 3.6 1.7 3.6 1.7 3.6 V
Supply Current
IAVDD
2
Full 25.0/31.3 27.3/33.7 41.0 44.0 47.0 50.0 mA
IDRVDD
2
(1.8 V) Full 1.6/2.9 4.7 5.6 mA
IDRVDD
2
(3.3 V) Full 3.0/5.3 8.4 10.2 mA
POWER CONSUMPTION
DC Input Full 45.2/57.2 75.2 86.8 mW
Sine Wave Input
2
(DRVDD = 1.8 V) Full 47.9/61.6 51.8/65.8 82.3 87.5 94.7 100 mW
Sine Wave Input
2
(DRVDD = 3.3 V) Full 54.9/73.8 101.5 118.3 mW
Standby Power
4
Full 34/34 34 34 mW
Power-Down Power Full 0.5 0.5 0.5 mW
1
Measured with 1.0 V external reference.
2
Measured with a 10 MHz input frequency at rated sample rate, full-scale sine wave, with approximately 5 pF loading on each output bit.
3
Input capacitance refers to the effective capacitance between one differential input pin and ground.
4
Standby power is measured with a dc input and the CLK+, CLK− active.