SPECIFICATIONS
ELECTRICAL
TA = +25°C, VCC = +12V or +15V, VEE = –12V or –15V, VLOGIC = +5V unless otherwise specified.
ADC774J, ADC774SH
ADC774K, ADC774TH
TYP
PARAMETER
RESOLUTION
INPUTS
MIN
TYP
MAX
MIN
MAX
UNITS
12
*
Bits
ANALOG
Voltage Ranges: Unipolar
Bipolar
Impedance: 0 to +10V, ±5V
±10V, 0V to +20V
0 to +10, 0 to +20
*
*
*
*
V
V
kΩ
kΩ
±5, ±10
5
10
3.75
7.5
6.25
12.5
*
*
*
*
DIGITAL (CE, CS, R/C, AO, 12/8)
Over Temperature Range
Voltages: Logic 1
Logic 0
Current
Capacitance
+2
–0.5
–5
+5.5
+0.8
+5
*
*
*
*
*
*
V
V
µA
pF
0.1
5
*
*
TRANSFER CHARACTERISTICS
ACCURACY
At +25°C
Linearity Error
±1
±2
±10
±1/2
*
±4
LSB
LSB
LSB
Unipolar Offset Error (Adjustable to Zero)
Bipolar Offset Error (Adjustable to Zero)
Full-Scale Calibration Error(1)
(Adjustable to Zero)
No Missing Codes Resolution (Diff. Linearity)
Inherent Quantization Error
±0.25
*
% of FS(2)
Bits
LSB
11
12
±1/2
*
TMIN to TMAX
Linearity Error: J, K Grades
S, T Grades
±1
±1
±1/2
±3/4
LSB
LSB
Full-Scale Calibration Error
Without Initial Adjustment (1) : J, K Grades
S, T Grades
Adjusted to Zero at +25°C: J, K Grades
S, T Grades
±0.47
±0.75
±0.22
±0.5
±0.37
±0.5
±0.12
±0.25
% of FS
% of FS
% of FS
% of FS
Bits
No Missing Codes Resolution (Diff. Linearity)
11
12
(3)
TEMPERATURE COEFFICIENTS (TMIN to TMAX
Unipolar Offset: J, K Grades
S, T Grades
)
±10
±5
±2
±5
±2.5
±1
ppm/°C
ppm/°C
LSB
Max Change: All Grades
Bipolar Offset: All Grades
Max Change: J, K Grades
S, T Grades
±10
±2
±4
±5
±1
±2
ppm/°C
LSB
LSB
Full-Scale Calibration: J, K Grades
S, T Grades
Max Change: J, K Grades
S, T Grades
±45
±50
±9
±25
±25
±5
ppm/°C
ppm/°C
LSB
±20
±10
LSB
POWER SUPPLY SENSITIVITY
Change in Full-Scale Calibration
+13.5V < VCC <+16.5V or +11.4V < VCC < +12.6V
–16.5V < VEE <–13.5V or –12.6V < VEE < –11.4V
+4.5V < VLOGIC <+5.5V
±2
±2
±1/2
±1
±1
*
LSB
LSB
LSB
CONVERSION TIME (4,5)
8-Bit Cycle
12-Bit Cycle
5
7.5
5.3
8.5
*
•
*
•
µs
µs
OUTPUTS
DIGITAL (DB11 – DB0, STATUS)
(Over Temperature Range)
Output Codes: Unipolar
Bipolar
Unipolar Straight Binary (USB)
Bipolar Offset Binary (BOB)
Logic Levels: Logic 0 (ISINK = 1.6mA)
Logic 1 (ISOURCE = 500µA)
Leakage, Data Bits Only, High-Z State
Capacitance
+0.4
*
*
V
V
µA
pF
+2.4
–5
*
*
0.1
5
+5
*
*
®
2
ADC774
BB [ BURR-BROWN CORPORATION ]
