Datasheet

AD9953
Rev. A | Page 4 of 32
ELECTRICAL SPECIFICATIONS
Table 1. Unless otherwise noted, AVDD, DVDD = 1.8 V ± 5%, DVDD_I/O = 3.3 V ± 5%, R
SET
= 3.92 kΩ, External Reference Clock
Frequency = 20 MHz with REFCLK Multiplier Enabled at 20×. DAC Output Must Be Referenced to AVDD, Not AGND.
Parameter Temp Min Typ Max Unit
REF CLOCK INPUT CHARACTERISTICS
Frequency Range
REFCLK Multiplier Disabled FULL 1 400 MHz
REFCLK Multiplier Enabled at 4× FULL 20 100 MHz
REFCLK Multiplier Enabled at 20× FULL 4 20 MHz
Input Capacitance 25°C 3 pF
Input Impedance 25°C 1.5 kΩ
Duty Cycle 25°C 50 %
Duty Cycle with REFCLK Multiplier Enabled 25°C 35 65 %
REFCLK Input Power
1
FULL –15 0 +3 dBm
DAC OUTPUT CHARACTERISTICS
Resolution 14 Bits
Full-Scale Output Current 25°C 5 10 15 mA
Gain Error 25°C –10 +10 %FS
Output Offset 25°C 0.6 µA
Differential Nonlinearity 25°C 1 LSB
Integral Nonlinearity 25°C 2 LSB
Output Capacitance 25°C 5 pF
Residual Phase Noise @ 1 kHz Offset, 40 MHz A
OUT
REFCLK Multiplier Enabled @ 20× 25°C –105 dBc/Hz
REFCLK Multiplier Enabled @ 4× 25°C –115 dBc/Hz
REFCLK Multiplier Disabled 25°C –132 dBc/Hz
Voltage Compliance Range 25°C AVDD – 0.5 AVDD + 0.5 V
Wideband SFDR
1 MHz to 10 MHz Analog Out 25°C 73 dBc
10 MHz to 40 MHz Analog Out 25°C 67 dBc
40 MHz to 80 MHz Analog Out 25°C 62 dBc
80 MHz to 120 MHz Analog Out 25°C 58 dBc
120 MHz to 160 MHz Analog Out 25°C 52 dBc
Narrow-Band SFDR
40 MHz Analog Out (±1 MHz) 25°C 87 dBc
40 MHz Analog Out (±250 kHz) 25°C 89 dBc
40 MHz Analog Out (±50 kHz) 25°C 91 dBc
40 MHz Analog Out (±10 kHz) 25°C 93 dBc
80 MHz Analog Out (±1 MHz) 25°C 85 dBc
80 MHz Analog Out (±250 kHz) 25°C 87 dBc
80 MHz Analog Out (±50 kHz) 25°C 89 dBc
80 MHz Analog Out (±10 kHz) 25°C 91 dBc
120 MHz Analog Out (±1 MHz) 25°C 83 dBc
120 MHz Analog Out (±250 kHz) 25°C 85 dBc
120 MHz Analog Out (±50 kHz) 25°C 87 dBc
120 MHz Analog Out (±10 kHz) 25°C 89 dBc
160 MHz Analog Out (±1 MHz) 25°C 81 dBc
160 MHz Analog Out (±250 kHz) 25°C 83 dBc
160 MHz Analog Out (±50 kHz) 25°C 85 dBc
160 MHz Analog Out (±10 kHz) 25°C 87 dBc