ADS-235 Datel, Inc., ADS-235 Datasheet - Page 2

• Manufacturer Part Number: ADS-235
• Description: Sampling A/D Converters
• Manufacturer: Datel, Inc.

FUNCTIONAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
ADS-235, ADS-236, ADS-237
(T
cycle, CL =10pF, and differential analog input unless otherwise specified.)
Max. Peak-to-Peak Diff. Voltage
Max. Peak-to-Peak Single-Ended
Analog Input Common Mode
Input Bias Current, IB+ or IB–
Differential Input
Input Impedance
Input Capacitance
INTERNAL VOLTAGE REFERENCE
Reference Output Voltage, V
Reference Output Current
Reference Temperature Coefficient
REFERENCE VOLTAGE INPUT
Reference Voltage Input, V
Total Reference Resistance, R
Reference Current
PERFORMANCE
Resolution
Maximum Sample Rate, F
Minimum Sample Rate
Integral Nonlinearity, F
Differential Nonlinearity,
Input Offset Error, F
Full Scale Error, F
Aperture Delay, t
Aperture Uncertainty, t
Full Power Input Bandwidth
Spurious Free Dynamic Range,
SFDR, F
Total Harmonic Distortion,
PARAMETERS
+AV
DGND to AGND
Analog I/O Pins
Digital I/O Pins
Lead Temperature
(10 seconds, Pin Tips Only)
ANALOG INPUTS
A
Input Range (V
Voltage Input Range
Voltage Range (V
Current, (IB+ - IB–)
ADS-235
ADS-236
ADS-237
ADS-235
ADS-236
ADS-237
ADS-235
ADS-236, ADS-237
F
ADS-235
ADS-236, ADS-237
ADS-235
ADS-236, ADS-237
ADS-235
ADS-236
ADS-237
THD, F
ADS-235
ADS-236
ADS-237
= +25°C, (ADS-235), TMIN to TMAX (ADS-236/237), +DV
IN
S
=DC
, +DV
IN
IN
=1MHz
=1MHz
S
1 and +DV
AP
IN
IN
+ - V
IN
=DC
IN
+ + V
=DC
S
AJ
2 Supplies
IN
–)
CLK
IN
IN
RIN
=DC
–)/2
L
ROUT
DGND to +DV
AGND to +AV
MIN.
–10
1.0
1.0
—
—
—
—
—
—
—
—
—
—
—
12
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
9
LIMITS
+6.0
300
0.3
TYP.
S
S
±2.0
±0.5
±2.0
±1.0
±0.5
–70
–80
–75
200
450
100
4.0
2.3
3.5
3.5
7.8
0.5
Supply
19
32
Supply
—
—
10
—
—
50
—
—
—
12
24
73
83
77
5
5
5
S
MAX.
1 = +DV
±2.0
±1.0
4.0
10
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
UNITS
Volts
Volts
Volts
Volts
S
°C
2 = +AV
ps(RMS)
UNITS
ppm/°C
ppm/°C
ppm/°C
Volts
Volts
MHz
MHz
Volts
Volts
Volts
MHz
MHz
MHz
LSB
LSB
LSB
LSB
LSB
LSB
LSB
MW
mA
Bits
kW
µA
µA
µA
dB
dB
dB
dB
dB
dB
pF
ns
S
= +5V, V
2
PHYSICAL/ENVIRONMENTAL
PERFORMANCE (cont.)
Second Harmonic, F
Third Harmonic, F
Effective Number Of Bits,
Signal to Noise Ratio and
Signal to Noise Ratio,
Intermodulation Distortion,
Transient Response
Over-Voltage Recovery,
TIMING CHARACTERISTICS
Data Output Hold, t
Data Output Delay, t
Clock Pulse Width, TPWO, TPW1
Data Latency, t
DC BIAS VOLTAGE OUTPUT
DC Bias Voltage Output,V
DC Bias Voltage Current
DIGITAL OUTPUTS
Logic Levels
Output Capacitance
PARAMETERS
Operating Temperature Range
Storage Temperature Range
Thermal Resistance, qja
Junction Temperature
Package Type
Measured mounted on PC board in free air.
RIN
ADS-235
ADS-236
ADS-237
ADS-235
ADS-236
ADS-237
ENOB, F
ADS-235
ADS-236
ADS-237
Distortion, SINAD, F
ADS-235
ADS-236
ADS-237
SNR, F
ADS-235
ADS-236
ADS-237
IMD, F1=1MHz F2=1.02MHz
ADS-235
ADS-236
ADS-237
0.2V Overdrive
ADS-235, ADS-236
ADS-237
Logic "1", +DV
Logic "0", +DV
Logic "1", +DV
Logic "0", +DV
ADS-235S
ADS-236S/ADS-237S
= 3.5V, F
IN
IN
=1MHz
=1MHz
S
S
S
S
S
LAT
2=5V, V
2=5V, V
2=3V, V
2=3V, V
= 5MHz (ADS-235/236) and 9MHz (ADS-237) at a 50% duty
IN
=1MHz
H
OD
IN
IN
=1MHz
=1MHz
OH
OL
OH
OL
=0.4V
=0.4V
=2.4V
=2.4V
DC
MIN.
–40
–65
—
—
0
MIN.
–0.2
106
1.6
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
90
—
—
—
—
—
—
®
TYP.
28-Pin Plastic SOIC
—
—
—
75
—
TYP.
10.3
10.8
66.5
67.3
–0.2
–73
–86
–80
–73
–83
–77
–66
–68
–65
100
111
2.3
1.6
11
64
68
65
68
—
—
—
—
1
2
8
8
5
MAX.
MAX.
150
150
70
85
110
116
1.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
UNITS
UNITS
Cycles
°C/W
Cycle
Cycle
volts
Bits
Bits
Bits
mA
mA
mA
mA
mA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
ns
pF
°C
°C
°C
°C
ns
®