SPT
2
3/11/97
SPT7910
ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)1 25
°C
Note:
1.
Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal
applied conditions in typical applications.
Supply Voltages
VCC ............................................................... -0.3 to +6 V
VEE ............................................................... +0.3 to -6 V
Input Voltages
Analog Input ............................................... VFB≤VIN≤VFT
VFT, VFB. ................................................... +3.0 V, -3.0 V
Reference Ladder Current ..................................... 12 mA
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
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=10 MHz, 50% clock duty cycle,
unless otherwise specified.
TEST
TEST
SPT7910
PARAMETERS
CONDITIONS
LEVEL
MIN
TYP
MAX
UNITS
Resolution
12
Bits
DC Accuracy (+25
°C)
Integral Nonlinearity
± Full Scale
V
±2.0
LSB
Differential Nonlinearity
250 kHz Sample Rate
V
±0.8
LSB
No Missing Codes
VI
Guaranteed
Analog Input
Input Voltage Range
VI
±2.0
V
Input Bias Current
VI
30
60
µA
Input Resistance
VIN=0 V
VI
100
300
k
Ω
Input Capacitance
V
5
pF
Input Bandwidth
3 dB Small Signal
V
120
MHz
+FS Error
V
±5.0
LSB
-FS Error
V
±5.0
LSB
Reference Input
Reference Ladder Resistance
VI
500
800
Ω
Reference Ladder Tempco
V
0.8
Ω/°C
Timing Characteristics
Maximum Conversion Rate
VI
10
MHz
Overvoltage Recovery Time
V
20
ns
Pipeline Delay (Latency)
IV
1
Clock Cycle
Output Delay
V
5
ns
Aperture Delay Time
V
1
ns
Aperture Jitter Time
V
5
ps-RMS
Dynamic Performance
Effective Number of Bits
fIN=500 kHz
10.2
Bits
fIN=1.0 MHz
10.0
Bits
fIN=3.58 MHz
9.5
Bits
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