Datasheet

MAX1197
Dual, 8-Bit, 60Msps, 3V, Low-Power ADC with
Internal Reference and Parallel Outputs
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= OV
DD
= 3V, 0.1µF and 2.2µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a 10kΩ
resistor, V
IN
= 2V
P-P
(differential with respect to COM), C
L
= 10pF at digital outputs, f
CLK
= 60MHz, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. ≥ +25°C guaranteed by production test, < +25°C guaranteed by design and characterization. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN T YP MAX UNITS
f
INA or B
= 7.5MHz at -1dB FS 48.6
f
INA or B
= 20MHz at -1dB FS 46.5 48.6
f
INA or B
= 30MHz at -1dB FS 48.5
Signal-to-Noise
and Distortion
SINAD
f
INA or B
= 115.1MHz at -1dB FS 48.2
dB
f
INA or B
= 7.5MHz at -1dB FS 71
f
INA or B
= 20MHz at -1dB FS 60 69
f
INA or B
= 30MHz at -1dB FS 69
Spurious-Free
Dynamic Range
SFDR
f
INA or B
= 115.1MHz at -1dB FS 68
dBc
f
INA or B
= 7.5MHz at -1dB FS - 75
f
INA or B
= 20MHz at -1dB FS - 72
f
INA or B
= 30MHz at -1dB FS - 72
Third-Harmonic
Distortion
HD3
f
INA or B
= 115.1MHz at -1dB FS - 68
dBc
Intermodulation Distortion
(First Five Odd-Order IMDs)
IMD
f
IN1(A or B)
= 1.985MHz at -7dB FS
f
IN2(A or B)
= 2.029MHz at -7dB FS
(Note 2)
- 70 dBc
Third-Order Intermodulation
Distortion
IM3
f
IN1(A or B)
= 1.985MHz at -7dB FS
f
IN2(A or B)
= 2.029MHz at -7dB FS
(Note 2)
- 71.8 dBc
f
INA or B
= 7.5MHz at -1dB FS - 69
f
INA or B
= 20MHz at -1dB FS - 67 - 57
f
INA or B
= 30MHz at -1dB FS - 67
Total Harmonic Distortion
(First Four Harmonics)
THD
f
INA or B
= 115.1MHz at -1dB FS - 65
dBc
Small-Signal Bandwidth Input at -20dB FS, differential inputs 500 MHz
Full-Power Bandwidth FPBW Input at -1dB FS, differential inputs 400 MHz
Gain Flatness
(12MHz Spacing)
f
IN1(A or B)
= 106 MHz at -1dB FS
f
IN2(A or B)
= 118 MHz at -1dB FS
(Note 3)
0.05 dB
Aperture Delay t
AD
1ns
Aperture Jitter t
AJ
1dB SNR degradation at Nyquist 2 ps
RMS
Overdrive Recovery Time For 1.5 × full-scale input 2 ns
IN T ER N A L REF ER EN C E ( RE FIN = RE FOU T thr oug h 10kΩ r esi stor ; RE FP , RE FN , and C OM l evel s ar e g ener ated i nter nal l y.)
Reference Output Voltage V
REFOUT
(Note 4)
2.048
± 3%
V
Positive Reference Output
Voltage
V
REFP
(Note 5) 2.012 V
Negative Reference Output
Voltage
V
REFN
(Note 5) 0.988 V
Common-Mode Level V
COM
(Note 5)
V
D D
/ 2
±0.1
V