ADS7816 Datasheet, PDF (2/13 Pages) Burr-Brown (TI) – 12-Bit High Speed Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER

SPECIFICATIONS
At –40°C to +85°C, +V_CC = +5V, V_REF = +5V, f_SAMPLE = 200kHz, f_CLK = 16 • f_SAMPLE, unless otherwise specified.
PARAMETER
CONDITIONS
ADS7816
MIN
TYP MAX
ADS7816B
MIN TYP MAX
ADS7816C
MIN TYP MAX UNITS
ANALOG INPUT
Full-Scale Input Span
Absolute Input Voltage
Capacitance
Leakage Current
+In – (–In)
+In
–In
0
V_REF
T
T
–0.2
V_CC +0.2
T
T
–0.2
+0.2
T
T
25
T
±1
T
SYSTEM PERFORMANCE
Resolution
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Noise
Power Supply Rejection
12
11
±0.5
±2
±0.5
±2
±4
±4
33
82
T
12
±0.5
±2
±0.5
±1
T
T
T
T
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
12
T
1.5
T
200
T
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion
V_IN = 5.0Vp-p at 1kHz
–84
T
V_IN = 5.0Vp-p at 5kHz
–82
T
SINAD
V_IN = 5.0Vp-p at 1kHz
72
T
Spurious Free Dynamic Range V_IN = 5.0Vp-p at 1kHz
86
T
REFERENCE INPUT
Voltage Range
Resistance
Current Drain
0.1
5
T
T
CS = GND, f_SAMPLE = 0Hz
CS = V_CC
At Code 710h
5
5
38
100
T
T
T
T
f_SAMPLE = 12.5kHz
CS = V_CC
2.4
20
0.001
3
T
T
T
T
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels:
V_IH
V_IL
V_OH
V_OL
Data Format
I_IH = +5µA
I_IL = +5µA
I_OH = –250µA
I_OL = 250µA
CMOS
T
3
+V_CC +0.3 T
T
–0.3
0.8
T
T
3.5
T
0.4
T
Straight Binary
T
POWER SUPPLY REQUIREMENTS
V_CC
Quiescent Current
Specified Performance 4.50
5.25
T
T
380
700
T
T
Power Down
f_SAMPLE = 12.5kHz^{(2, 3)}
f_SAMPLE = 12.5kHz⁽³⁾
CS = V_CC, f_SAMPLE = 0Hz
30
280
400
3
T
T
T
TEMPERATURE RANGE
Specified Performance
–40
+85
T
T
T
T
V
T
T
V
T
T
V
T
pF
T
µA
T
Bits
T
Bits
±0.5
±1
LSB⁽¹⁾
±0.25 ±0.75 LSB
T
LSB
T
LSB
T
µVrms
T
dB
T Clk Cycles
T
Clk Cycles
T
kHz
T
dB
T
dB
T
dB
T
dB
T
T
V
T
GΩ
T
GΩ
T
T
µA
T
T
µA
T
T
µA
T
T
T
V
T
T
V
T
V
T
V
T
T
T
V
T
T
µA
T
µA
T
µA
T
µA
T
T
°C
T Specifications same as grade to the left.
NOTE: (1) LSB means Least Significant Bit, with V_REF equal to +5V, one LSB is 1.22mV. (2) f_CLK = 3.2MHz, CS = V_CC for 251 clock cycles out of every 256. (3) See
the Power Dissipation section for more information regarding lower sample rates.
®
ADS7816
2