Datasheet

REV. D
–2–
AD9057–SPECIFICATIONS
(V
D
= 5 V, V
DD
= 3 V; external reference, unless otherwise noted.)
Test AD9057BRS-40 AD9057BRS-60 AD9057BRS-80
Parameter Temp Level Min Typ Max Min Typ Max Min Typ Max Unit
RESOLUTION 8 8 8 Bits
DC ACCURACY
Differential Nonlinearity 25∞CI 0.75 1.9 0.75 1.9 0.75 1.9 LSB
Full VI 2.0 2.0 2.0 LSB
Integral Nonlinearity 25∞CI 0.75 1.9 0.75 1.9 0.75 1.9 LSB
Full VI 2.0 2.0 2.0 LSB
No Missing Codes Full VI Guaranteed Guaranteed Guaranteed
Gain Error
1
25∞CI –6 –2.5 +6 –6 –2.5 +6 –6 –2.5 +6 % FS
Full VI –8 +8 –8 +8 –8 +8 % FS
Gain Tempco
1
Full V ± 70 ± 70 ± 70 ppm/∞C
ANALOG INPUT
Input Voltage Range
(Centered at 2.5 V) 25∞CV 1.0 1.0 1.0 V p-p
Input Offset Voltage 25∞CI –15 0 +15 –15 0 +15 –15 0 +15 mV
Full VI –25 +25 –25 +25 –25 +25 mV
Input Resistance 25∞CV 150 150 150 kW
Input Capacitance 25∞CV 222pF
Input Bias Current 25∞CI 6 16 6 16 6 16 mA
Full VI 25 25 25 mA
Analog Bandwidth 25∞CV 120 120 120 MHz
BAND GAP REFERENCE
Output Voltage Full VI 2.4 2.5 2.6 2.4 2.5 2.6 2.4 2.5 2.6 V
Temperature Coefficient Full V ± 10 ± 10 ± 10 ppm/∞C
SWITCHING PERFORMANCE
Maximum Conversion Rate Full VI 40 60 80 MSPS
Minimum Conversion Rate Full IV 5 5 5 MSPS
Aperture Delay (t
A
)25∞CV 2.7 2.7 2.7 ns
Aperture Uncertainty (Jitter) 25∞CV 555ps rms
Output Valid Time (t
V
)
2
Full IV 4.0 6.6 4.0 6.6 4.0 6.6 ns
Output Propagation Delay (t
PD
)
2
Full IV 11.5 18.0 9.5 14.2 8.0 11.3 ns
DYNAMIC PERFORMANCE
3
Transient Response 25∞CV 999ns
Overvoltage Recovery Time 25∞CV 999ns
Signal-to-Noise Ratio (SINAD)
(With Harmonics)
f
IN
= 10.3 MHz 25∞CI 42 45.5 42 45 41.5 45 dB
f
IN
= 76 MHz 25∞CV 44.0 43.5 43.5 dB
Effective Number of Bits (ENOB)
f
IN
= 10.3 MHz 25∞CI 6.7 7.2 6.7 7.2 6.6 7.2 Bits
f
IN
= 76 MHz 25∞CV 7.0 6.9 6.9 Bits
Signal-to-Noise Ratio (SNR)
(Without Harmonics)
f
IN
= 10.3 MHz 25∞CI 43 46.5 43 46 42.5 46 dB
f
IN
= 76 MHz 25∞CV 45.5 45 45 dB
Second Harmonic Distortion
f
IN
= 10.3 MHz 25∞CI –50 –62 –50 –62 –50 –62 dBc
f
IN
= 76 MHz 25∞CV –54 –54 –54 dBc
Third Harmonic Distortion
f
IN
= 10.3 MHz 25∞CI –46 –60 –46 –60 –46 –60 dBc
f
IN
= 76 MHz 25∞CV –54 –54 –54 dBc
Two Tone Intermodulation
Distortion (IMD) 25∞CV –52 –52 –52 dBc
Differential Phase 25∞CV 0.8 0.8 0.8 Degrees
Differential Gain 25∞CV 1.0 1.0 1.0 %
DIGITAL INPUTS
Logic 1 Voltage Full VI 2.0 2.0 2.0 V
Logic 0 Voltage Full VI 0.8 0.8 0.8 V
Logic 1 Current Full VI ± 1 ± 1 ± 1 mA
Logic 0 Current Full VI ± 1 ± 1 ± 1 mA
Input Capacitance 25∞CV 4.5 4.5 4.5 pF
Encode Pulsewidth High (t
EH
)25∞CIV 9.0 166 6.7 166 5.5 166 ns
Encode Pulsewidth Low (t
EL
)25∞CIV 9.0 166 6.7 166 5.5 166 ns