ADS774 Datasheet, PDF (2/21 Pages) Burr-Brown (TI) – Microprocessor-Compatible Sampling CMOS ANALOG-to-DIGITAL CONVERTER

SPECIFICATIONS
ELECTRICAL
At T_A = T_MIN to T_MAX , V_DD = +5V, V_EE = –15V to +5V, sampling frequency of 117kHz, f_IN = 10kHz; unless otherwise specified.
PARAMETER
RESOLUTION
INPUTS
ANALOG
Voltage Ranges: Unipolar
Bipolar
Impedance:
0 to +10V, ±5V
±10V, 0V to +20V
DIGITAL (CE, CS, R/C, A_O, 12/8)
Voltages: Logic 1
Logic 0
Current
Capacitance
TRANSFER CHARACTERISTICS
DC ACCURACY
At +25°C
Linearity Error
Unipolar Offset Error (adjustable to zero)
Bipolar Offset Error (adjustable to zero)
Full-Scale Calibration Error ⁽¹⁾
(adjustable to zero)
No Missing Codes Resolution
T_MIN to T_MAX ⁽³⁾
Linearity Error
Full-Scale Calibration Error
Unipolar Offset
Bipolar Offset
No Missing Codes Resolution
AC ACCURACY ⁽⁴⁾
Spurious Free Dynamic Range
Total Harmonic Distortion
Signal-to-Noise Ratio
Signal-to-(Noise + Distortion) Ratio
Intermodulation Distortion
(F_IN1 = 20kHz, F_IN2 = 23kHz)
TEMPERATURE COEFFICIENTS ⁽⁵⁾
Unipolar Offset
Bipolar Offset
Full-Scale Calibration
POWER SUPPLY SENSITIVITY
Change in Full-Scale Calibration⁽⁶⁾
+4.75V < V_DD < +5.25V
Max Change
CONVERSION TIME (Including Acquisition Time)
t_AQ + t_C at 25°C:
8-Bit Cycle
12-Bit Cycle
12-Bit Cycle, T_MIN to T_MAX:
SAMPLING DYNAMICS
Sampling Rate at 25°C
T_MIN to T_MAX
Aperture Delay, t_AP
With V_EE = +5V
With V_EE = 0V to –15V
Aperture Uncertainty (Jitter)
With V_EE = +5V
With V_EE = 0V to –15V
Settling time to 0.01% for
Full-Scale Input Change
ADS774JE, JP, JU
MIN
TYP
MAX
12
ADS774KE, KP, KU
MIN
TYP
MAX
T
0 to +10, 0 to +20
±5, ±10
8.5
12
T
T
35
50
T
T
+2.0
+5.5
T
T
–0.5
+0.8
T
T
–5
0.1
+5
T
T
T
5
T
±1
±2
±10
±0.25
12
12
±1
±0.47
±4
±12
12
12
73
78
76
–77
–72
69
72
71
68
71
70
–75
±1
±2
±12
±1/2
5.5
5.9
7.5
8
8
8.5
125
T
117
T
20
1.6
300
10
1.4
±1/2
T
±4
T
±1/2
±0.37
±3
±5
T
T
–75
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
UNITS
Bits
V
V
kΩ
kΩ
V
V
µA
pF
LSB
LSB
LSB
% of FS ⁽²⁾
Bits
LSB
% of FS
LSB
LSB
Bits
dB
dB
dB
dB
ppm/°C
ppm/°C
ppm/°C
LSB
µs
µs
µs
kHz
kHz
ns
µs
ps, r ms
ns, r ms
µs
®
ADS774
2