SPT7921 查看數據表（PDF） - Cadeka Microcircuits LLC.
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SPT7921 Datasheet PDF : 11 Pages
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ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)1 25 °C
Supply Voltages
VCC ........................................................................... +6 V
VEE ............................................................................ -6 V
Input Voltages
Analog Input ................................................ VFB≤VIN≤VFT
VFT, VFB. .................................................... +3.0 V, -3.0 V
Reference Ladder Current ..................................... 12 mA
CLK IN .......................................................................VCC
Output
Digital Outputs .............................................. 0 to -30 mA
Temperature
Operating Temperature ................................. 0 to +70 °C
Junction Temperature ......................................... +175 °C
Lead Temperature, (soldering 10 seconds) ........ +300 °C
Storage Temperature ................................ -65 to +150 °C
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 to TMAX, VCC=+5.0 V, VEE=-5.2 V, DVCC=+5.0 V, VIN=±2.0 V, VSB=-2.0 V, VST=+2.0 V, fCLK=20 MHz, 50% clock duty cycle,
unless otherwise specified.
PARAMETERS
Resolution
DC Accuracy
Integral Nonlinearity
Differential Nonlinearity
No Missing Codes
Analog Input
Input Voltage Range
Input Bias Current
Input Resistance
Input Capacitance
Input Bandwidth
+FS Error
-FS Error
Reference Input
Reference Ladder Resistance
Reference Ladder Tempco
Timing Characteristics
Maximum Conversion Rate
Overvoltage Recovery Time
Pipeline Delay (Latency)
Output Delay
Aperture Delay Time
Aperture Jitter Time
Dynamic Performance
Effective Number of Bits
fIN=500 kHz
fIN=1.0 MHz
fIN=3.58 MHz
TEST
CONDITIONS
+25 °C
± Full Scale
100 kHz Sample Rate
fCLK=1 MHz
TA=+25 °C
TA=+25 °C, VIN=0 V
3 dB Small Signal
fCLK=1 MHz
TA=+25 °C
TA=+25 °C
TA=+25 °C
TEST
LEVEL
V
V
VI
VI
I
I
V
V
V
V
VI
V
VI
V
IV
V
V
V
SPT7921
MIN
TYP
12
±2.0
±0.8
Guaranteed
±2.0
30
100
300
5
120
±5.0
±5.0
500
800
0.8
20
20
14
1
5
10.2
10.0
9.5
MAX
UNITS
Bits
LSB
LSB
V
60 µA
kΩ
pF
MHz
LSB
LSB
Ω
Ω/°C
MHz
ns
1 Clock Cycle
18 ns
ns
ps-RMS
Bits
Bits
Bits
Signal-To-Noise Ratio
(without Harmonics)
fIN=500 kHz
TA=+25 °C
I
64
67
dB
TA=TMIN to TMAX
IV
58
61
dB
fIN=1 MHz
TA=+25 °C
I
64
66
dB
TA=TMIN to TMAX
IV
58
60
dB
fIN=3.58 MHz
TA=+25 °C
I
62
64
dB
TA=TMIN to TMAX
IV
58
60
dB
SPT7921
2
3/10/97
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