SPECIFICATIONS
ELECTRICAL
At TA = TMIN to TMAX , VDD = +5V, VEE = –15V to +5V, sampling frequency of 117kHz, fIN = 10kHz; unless otherwise specified.
ADS774JE, JP, JU
TYP
ADS774KE, KP, KU
TYP
PARAMETER
MIN
MAX
MIN
MAX
UNITS
RESOLUTION
INPUTS
12
✻
Bits
ANALOG
Voltage Ranges: Unipolar
Bipolar
0 to +10, 0 to +20
V
V
±5, ±10
Impedance:
0 to +10V, ±5V
±10V, 0V to +20V
8.5
35
12
50
✻
✻
✻
✻
kΩ
kΩ
DIGITAL (CE, CS, R/C, AO, 12/8)
Voltages: Logic 1
Logic 0
Current
Capacitance
+2.0
–0.5
–5
+5.5
+0.8
+5
✻
✻
✻
✻
✻
✻
V
V
µA
pF
0.1
5
✻
✻
TRANSFER CHARACTERISTICS
DC ACCURACY
At +25°C
Linearity Error
Unipolar Offset Error (adjustable to zero)
Bipolar Offset Error (adjustable to zero)
±1
±2
±10
±0.25
±1/2
✻
±4
✻
LSB
LSB
LSB
(1)
(2)
Full-Scale Calibration Error
% of FS
(adjustable to zero)
No Missing Codes Resolution
TMIN to TMAX
12
12
Bits
(3)
Linearity Error
Full-Scale Calibration Error
Unipolar Offset
±1
±0.47
±4
±1/2
±0.37
±3
LSB
% of FS
LSB
Bipolar Offset
±12
±5
LSB
No Missing Codes Resolution
12
73
12
76
Bits
(4)
AC ACCURACY
Spurious Free Dynamic Range
Total Harmonic Distortion
Signal-to-Noise Ratio
Signal-to-(Noise + Distortion) Ratio
Intermodulation Distortion
(FIN1 = 20kHz, FIN2 = 23kHz)
78
–77
72
71
–75
✻
✻
✻
✻
✻
dB
dB
dB
dB
–72
–75
69
68
71
70
(5)
TEMPERATURE COEFFICIENTS
Unipolar Offset
Bipolar Offset
Full-Scale Calibration
±1
±2
±12
✻
✻
✻
ppm/°C
ppm/°C
ppm/°C
POWER SUPPLY SENSITIVITY
Change in Full-Scale Calibration(6)
+4.75V < VDD < +5.25V
Max Change
±1/2
✻
LSB
CONVERSION TIME (Including Acquisition Time)
tAQ + tC at 25°C:
8-Bit Cycle
12-Bit Cycle
5.5
7.5
8
5.9
8
8.5
✻
✻
✻
✻
✻
✻
µs
µs
µs
12-Bit Cycle, TMIN to TMAX
:
SAMPLING DYNAMICS
Sampling Rate at 25°C
125
117
✻
✻
kHz
kHz
T
MIN to TMAX
Aperture Delay, tAP
With VEE = +5V
With VEE = 0V to –15V
20
1.6
✻
✻
ns
µs
Aperture Uncertainty (Jitter)
With VEE = +5V
With VEE = 0V to –15V
Settling time to 0.01% for
Full-Scale Input Change
300
10
1.4
✻
✻
✻
ps, rms
ns, r ms
µs
®
ADS774
2
BB [ BURR-BROWN CORPORATION ]
