Datasheet

ADS901
3
SBAS054A
ADS901E
PARAMETER CONDITIONS TEMP MIN TYP MAX UNITS
ELECTRICAL CHARACTERISTICS (Cont.)
At T
A
= +25°C, V
S
= LV
DD
= +3V, REFB = 1V, REFT = 2V, Specified Input Range = 1V to 2V, Sampling Rate = 20MHz, unless otherwise specified.
DYNAMIC CHARACTERISTICS
Differential Linearity Error (Largest Code Error)
f = 500kHz Full ±0.8 LSB
f = 9MHz Full ±0.9 ±1.0 LSB
No Missing Codes Full Guaranteed
Integral Nonlinearity Error, f = 500kHz Full ±3.5 LSB
Spurious Free Dynamic Range
(2)
f = 500kHz (–1dBFS
(3)
input) Full 50 dBFS
(3)
f = 9MHz (–1dBFS input) Full 45 49 dBFS
Signal-to-Noise Ratio (SNR) Referred to Sinewave Input Signal
f = 500kHz (–1dBFS input) Full 53 dB
f = 9MHz (–1dBFS input) Full 48 53 dB
Maximum SNR
Referred to DC Full Scale Input Signal
f = 9MHz (–1dBFS input) 62 dB
Signal-to-(Noise + Distortion) (SINAD)
f = 500kHz (–1dBFS input) Full 50 dB
f = 3.58MHz (–1dBFS input) Full 50 dB
f = 9MHz (–1dBFS input) Full 45 49 dB
Effective Number of Bits
(4)
f
IN
= 3.58MHz 8.0 Bits
Differential Gain Error NTSC, PAL 2.3 %
Differential Phase Error NTSC, PAL 1.0 degrees
Output Noise Input Grounded 0.2 LSB rms
Aperture Delay Time 3ns
Aperture Jitter 7 ps rms
Analog Input Bandwidth
Small Signal –20dBFS Input 350 MHz
Full Power 0dBFS Input 100 MHz
Overvoltage Recovery Time
(5)
2ns
DIGITAL OUTPUTS C
L
= 15pF
Logic Family CMOS Compatible
Logic Coding Straight Offset Binary
High Output Voltage, V
OH
+2.4 LV
DD
V
Low Output Voltage, V
OL
+0.4 V
3-State Enable Time OE = L 20 40 ns
3-State Disable Time OE = H 18 10 ns
Internal Pull-Down to Gnd 50 kΩ
Power-Down Enable Time Pwrdn = L 133 ns
Power-Down Disable Time Pwrdn = H 18 ns
Internal Pull-Down to Gnd 50 kΩ
ACCURACY f
S
= 2.5MHz
Gain Error Full 2.5 %FS
Input Offset
(6)
Full 0.4 %FS
Power Supply Rejection (Gain) ∆ V
S
= +10% Full 56 dB
Power Supply Rejection (Offset) Full 68 dB
External REFT Voltage Range Full REFB +0.5 2 V
S
–0.8 V
External REFB Voltage Range Full 0.8 1 REFT –0.5 V
Reference Input Resistance 4kΩ
POWER SUPPLY REQUIREMENTS
Supply Voltage: +V
S
Operating Full +2.7 +3.0 +3.7 V
Supply Current: +I
S
Operating Full 16 mA
Power Dissipation Operating Full 49 60 mW
Power Dissipation (Power Down) Operating Full 15 mW
Thermal Resistance,
θ
JA
28-Lead SSOP 89 °C/W
NOTES: (1) The single-ended input range is set by REFB and REFT values. (2) Spurious Free Dynamic Range refers to the magnitude of the largest harmonic.
(3) dBFS is dB relative to full scale. (4) Based on (SINAD - 1.76)/6.02. (5) No “Rollover” of bits. (6) Offset Deviation from Ideal Negative Full Scale.