XRD87L85 Datasheet, PDF (4/15 Pages) Exar Corporation – Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter

XRD87L85
ELECTRICAL CHARACTERISTICS TABLE (CONT'D)
UNLESS OTHERWISE SPECIFIED: AV_DD = DV_DD = 3.3V, FS = 6MHZ (50% DUTY CYCLE),
V_RT = 2.5V, V_RB = 0.5V, T_A = 25°C
Parameter
AC PARAMETERS
Differential Gain Error
Differential Phase Error
POWER SUPPLIES
Operating Voltage (AV_DD, DV_DD)⁹
Current (AGND + DGND)
Symbol Min
25°C
Typ
Max Units
Test Conditions/Comments
dg
2
d_ph
1
V_DD
3.0
3.3
I_DD
8
%
Degree
FS = 4 x NTSC
FS = 4 x NTSC
3.6
V
12
mA
Does not include ref. current
NOTES
1. The difference between the measured and the ideal code width (V_REF/256) is the DNL error (Figure 3). The INL error is the maximum distance (in LSBs) from the best fit line to any transition
voltage (Figure 4). Accuracy is a function of the sampling rate (FS).
2. Guaranteed, not tested
3. Specified values guarantee functionality. Refer to other parameters for accuracy.
4. –1dB bandwidth is a measure of performance of the A/D input stage (S/H + amplifier). Refer to other parameters for accuracy within the specified bandwidth.
5. See V_IN input equivalent circuit (Figure 5). Switched capacitor analog input requires driver with low output resistance.
6. All inputs have diodes to DV_DD and DGND. Input DC currents will not exceed specified limits for any input voltage between DGND and DV_DD .
7. t_R , t_F should be limited to >5ns for best results.
8. Depends on the RC load connected to the output pin.
9. AGND & DGND pins are connected through the silicon substrate. Connect together at the package and to the analog ground plane.
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS (T_A = +25°C unless otherwise noted)^{1, 2, 3}
V_DD to GND ....................................................... 5.5V
V_RT & V RB ......................... V_DD +0.5 to GND –0.5V
Storage Temperature .........................–65 to +150°C
Lead Temperature (Soldering 10 seconds) ... +300°C
V_IN ..................................... V_DD +0.5 to GND –0.5V
Package Power Dissipation Rating @ 75°C
All Inputs ............................ V_DD +0.5 to GND –0.5V
PDIP, SOIC, SOP ................................. 675mW
All Outputs ......................... V_DD +0.5 to GND –0.5V
Derates above 75°C ........................... 12mW/°C
NOTES:
1. Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation at or above this specification
is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
2. Any input pin which can see a value outside the absolute maximum ratings should be protected by Schottky diode clamps (HP5082-2835) from input pin to the supplies. All inputs have protection
diodes which will protect the device from short transients outside the supplies of less than 100mA for less than 100ms.
3. V_DD refers to AV_DD and DV_DD. GND refers to AGND and DGND.
Rev. 1.00
4