Datasheet
AD9629
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
AD9629-20/AD9629-40 AD9629-65 AD9629-80
Unit Min Typ Max Min Typ Max Min Typ Max
RESOLUTION Full 12 12 12 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 ±0.25 ±0.25 ±0.30 LSB
25°C ±0.11 ±0.11 ±0.16 LSB
Integral Nonlinearity (INL)
2
Full ±0.40 ±0.30 ±0.35 LSB
25°C ±0.11 ±0.13 ±0.16 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 0.25 0.25 0.25 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 24.9/31.1 26.7/33.2 41.2 46.0 46.8 50.0 mA
IDRVDD
2
(1.8 V) Full 1.5/2.5 4.2 5.0 mA
IDRVDD
2
(3.3 V) Full 2.7/4.7 7.5 9.0 mA
POWER CONSUMPTION
DC Input Full 45.0/56.7 75 85.2 mW
Sine Wave Input
2
(DRVDD = 1.8 V) Full 47.5/60.5 50.7/65.0 81.7 86.0 93 100 mW
Sine Wave Input
2
(DRVDD = 3.3 V) Full 53.7/71.7 98.9 114 mW
Standby Power
4
Full 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 AGND.
4
Standby power is measured with a dc input and the clock active.