SPT
2
8/1/00
SPT674
ELECTRICAL SPECIFICATIONS
TA = TMIN to TMAX, VEE = 0 to +5 V, VDD = +5 V, fS = 117 kHz, fIN = 10 kHz, unless otherwise specified..
TEST
TEST
SPT674C
SPT674B
PARAMETER
CONDITIONS
LEVEL
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
DC ELECTRICAL CHARACTERISTICS
Resolution
VI
12
12
Bits
Linearity Error
TA= 0 to +70 °CVI
±1
±0.5
LSB
Differential Linearity
No Missing Codes
VI
12
12
Bits
Unipolar Offset; 10 V, 20 V
+25
°C Adjustable to Zero
VI
±4
±4
LSB
Bipolar Offset;
±5 V, ±10 V
+25
°C Adjustable to Zero
VI
±10
±6
LSB
Full Scale Calibration Error1
+25
°C Adjustable to Zero
VI
0.30
0.30
% of FS
Full Scale Calibration Error1
No Adjustment to Zero
TA = 0 to +70 °C
V
0.47
0.37
% of FS
Temperature Coefficients
Using Internal Reference
Unipolar Offset
V
±1.0
±1.0
ppm/
°C
Bipolar Offset
V
±2.0
±2.0
ppm/
°C
Full Scale Calibration
V
±12
±12
ppm/
°C
Power Supply Rejection
Max change in full
VI
±0.5
±0.5
LSB
+4.75 V<VDD<+5.25 V
scale calibration
Analog Input Ranges
Bipolar
VI
-5
+5
-5
+5
Volts
VI
-10
+10
-10
+10
Volts
Unipolar
VI
0
+10
0
+10
Volts
VI
0
+20
0
+20
Volts
Input Impedance
10 Volt Span
VI
8.5
12
8.5
12
k
Ω
20 Volt Span
VI
35
50
35
50
k
Ω
ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur) 1 25
°C
Note:
Operation at any Absolute Maximum Rating is not implied. See Operating Conditions for proper nominal applied
conditions in typical applications.
Output
Reference Output Voltage .............. Indefinite Short to GND
Momentary Short to VDD
Temperature
Operating Temperature, Ambient .................... 0 to +70
°C
Junction ......................... +165
°C
Lead Temperature, (Soldering 10 Seconds) ........... +300
°C
Storage Temperature .................................... -65 to +150
°C
Supply Voltages
Mode Control Voltage (VEE to DGND) .................... 0 to +7 V
Logic Supply Voltage (VDD to DGND) ...................0 to +7 V
Analog to Digital Ground (AGND to DGND) .................
±1 V
Input Voltages
Control Input Voltages (to DGND)
(CE, CS, Ao, 12/8, R/C) ......................... -0.5 to VDD +0.5 V
Analog Input Voltage (to AGND)
(REF IN, BIP OFF, 10 VIN) ...................................... ±16.5 V
20 V VIN Input Voltage (to AGND) .............................. ±24 V
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