Datasheet

ADS931
3
SBAS060A
ELECTRICAL CHARACTERISTICS (Cont.)
At T
A
= full specified temperature range unless otherwise noted. +V
S
= LV
DD
= +3V, specified single-ended input (1V to 2V) and sampling rate = 30MHz, unless
otherwise specified. The input range is 2.25V to 3.25V when specified for +5V operation.
ADS931E
PARAMETER CONDITIONS MIN TYP MAX UNITS
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) Two-tone intermodulation distortion is referred to as the largest fundamental tone. (5) Based on (SINAD –1.76)/6.02. (6) No
“Rollover” of bits. (7) Offset deviation from ideal negative full scale.
Output Noise Input AC-Grounded 0.2 LSBs rms
Aperture Delay Time 2ns
Aperture Jitter 7 ps rms
Analog Input Bandwidth
Small Signal –20dBFS Input 350 MHz
Full Power 0dBFS Input 100 MHz
Overvoltage Recovery Time
(6)
2ns
DIGITAL OUTPUTS C
L
= 15pF
Logic Family TTL/HCT Compatible CMOS
Logic Coding Straight Offset Binary
High Output Voltage, V
OH
2.4 V
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 2 10 ns
Internal Pull-Down 50 kΩ
Power-Down Enable Time Pwrdn = L 133 ns
Power-Down Disable Time Pwrdn = H 18 ns
Internal Pull-Down 50 kΩ
ACCURACY f
S
= 2.5MHz, V
S
= +3V and +5V
Gain Error 2.4 3.5 %FS
Input Offset
(7)
Referred to Ideal Midscale ±6.5 ±25 mV
Power Supply Rejection (Gain) ∆ V
S
= +10% 75 dB
External REFT Voltage Range REFB +0.5 2 V
S
–0.8 V
External REFB Voltage Range 0.8 1 REFT –0.5 V
Reference Input Resistance 4kΩ
POWER SUPPLY REQUIREMENTS
Supply Voltage: +V
S
Operating +2.7 +3.0 +5.5 V
Supply Current: +I
S
V
S
= +3V 23 29 mA
Power Dissipation V
S
= +3V 69 87 mW
V
S
= +5V 154 mW
Power Dissipation (Power Down) V
S
= +3V 10 mW
V
S
= +5V 15 mW
Thermal Resistance,
θ
JA
SSOP-28 89 °C/W