SPT7936SCT View Datasheet(PDF) - Signal Processing Technologies
Part Name
Description
Manufacturer
SPT7936SCT Datasheet PDF : 8 Pages
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ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)1 25 °C
Supply Voltages
VDD1 ................................................................... - 0.3 V to +6 V
VDD2 ................................................................... - 0.3 V to +6 V
Temperatures
Operating Temperature ................................. 0 to +70 °C
Storage Temperature.. ............................. - 65 to +125 °C
Input Voltages
Analog In ....................................... - 0.3 V to VDD + 0.3 V
Digital In ........................................ - 0.3 V to VDD + 0.3 V
REFP .................................................... - 0.3 V to VDD + 0.3 V
REFN .................................................... - 0.3 V to VDD + 0.3 V
CLOCK.......................................... - 0.3 V to VDD + 0.3 V
Note: 1. Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal
applied conditions in typical applications.
ELECTRICAL SPECIFICATIONS
TA = TMIN-TMAX, VDD1 =VDD2 = 3.3 V, Sampling Rate = 28 MSPS, Differential input signal, 50% duty cycle clock with 2.5 ns rise and fall times, unless otherwise
specified.
PARAMETERS
TEST
CONDITIONS
TEST
LEVEL
SPT7936
MIN
TYP
MAX UNITS
DC Accuracy
Differential Nonlinearity (DNL)
Integral Nonlinearity
Common Mode Rejection Ratio (CMRR)
No Missing Codes
VI
±0.5
±1.0 LSB
VI
±1.3
±3.0 LSB
V
54
dB
Guaranteed
Analog Input
Input Voltage Range (differential) VFSR
Common Mode Input Voltage VCMI
Input Capacitance CIN
(From Each Input to Ground)
Midscale Offset VOS
Gain Error
Input Bandwidth
IV
IV
V
VIN+=VIN–=VCM
V
V
Large Signal
V
0.6
±1
±1.2 V
1.2
1.5
1.6 V
2
pF
±2
%
-0.2
%
150
MHz
Reference Voltages
Internal Reference Voltage on Pin 10 (VREFNI)
Internal Reference Voltage on Pin 11 (VREFPI)
Internal Reference Voltage Drift
Negative Input Voltage (VREF-)
Positive Input Voltage (VREF+)
Reference Input Voltage Range (VREF+ — VREF-)
Common Mode Output Voltage (VCM)
Bandgap Output Voltage (VBGAP)
VI
0.95
1.0 1.05 V
VI
1.95
2.0 2.05 V
IV
100 ppm/°C
VI
0.9
1.0
1.3 V
VI
1.9
2.0
2.3 V
IV
0.6
1.0
1.2 V
VI
1.45
1.50 1.55 V
VI
2.365 2.415 2.465 V
Dynamic Performance
Effective Number of Bits
fIN = 5.0 MHz
V
10.0
Bits
fIN = 10.0 MHz
VI
9.2
9.7
Bits
Signal to Noise and Distortion Ratio (SINAD)
fIN = 5.0 MHz
V
62
dB
fIN = 10.0 MHz
VI
57
60
dB
Signal to Noise Ratio (SNR)
fIN = 5.0 MHz
V
64
dB
Without Harmonics
fIN = 10.0 MHz
VI
59
63
dB
Total Harmonic Distortion (THD)
fIN = 5.0 MHz
V
–66
dB
fIN = 10.0 MHz
VI
–64
–61 dB
SPT
2
SPT7936
8/1/00
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