ADS-230 Datel, Inc., ADS-230 Datasheet - Page 3

• Manufacturer Part Number: ADS-230
• Description: Sampling A/D Converters
• Manufacturer: Datel, Inc.

TIMING
Conversion Time, t
Time for Conversion to Start, t
Access Time, t
Three-State Control Time, t1H, t0H
Delay Time, RD Low to INT High
Delay Time, EOC High to INT Low
EOC High to Data Valid, t
MUX Address Setup Time, t
MUX Address Hold Time, t
CS Setup Time, t
CS Hold Time, t
Wake-up Time, t
DIGITAL OUTPUT
Logic Levels
Three-State Output Leakage
Three-State Output Capacitance
Output Coding
POWER REQUIREMENTS
Power Supply Range
Power Supply Current
Standby Current (AI
Power Dissipation
Footnotes:
R
t
t
PD High to First S/H Low
Logic "1" (V
Logic "0", (V
Logic Loading "1"
Logic Loading "0"
+5V Supply, V
DV
AV
®
INTH
INTL
When the input voltage at any pin exceeds the power supply rails (below
GND or Above V
package input current limits to two the number of pins that can meet this
constant.
In most cases, the maximum derated power dissipation will be reached only
during fault conditions.
This is the ESD rating for the human body model, with a 100pF capacitor
discharged through a 1.5 kilohm resistor. The ESD rating for the machine
model is 200V.
For best performance, the rising edge of the S/H pulse must not be near
either the falling or rising edge of EOC. The recommended values of t
L
S
S
= 1k, C
, C
, C
Supply Current, AI
Supply Current, DI
L
L
= 100pF
= 100pF
ADS-230: 5ns<t
ADS-231: 5ns<t
L
S
= 10pF
ACC
S
CSH
= 4.5V)
WU
= 4.5V)
S
CSS
= AV
(C
CONV
S
S
L
) the input current must be limited to ±25mA or less. The
+DI
= 100pF)
S
= DV
S
S
S
UPDATE
, PD = 0)
MH
S/H
S/H
MS
S
<40ns, or 150ns<t
<40ns, or 150ns<t
EOC
®
S/H
S/H
<550ns
<400ns
+25°C
TYP.
740
0.1
95
10
25
35
25
—
—
—
—
—
—
—
—
—
10
20
—
5
1
5
2
S/H
are:
ADS-230
Binary
MIN.
3
600
2.4
4.5
60
35
50
50
20
20
—
—
—
—
—
—
—
—
—
—
—
—
—
—
–40 to +85°C
The MUX inputs CH1
models. The internal multiplexer adds harmonic distortion at high input frequencies.
See the Typical Performance Curves for THD with and without the MUX.
The contributions from the first nine harmonics are used in the calculation of THD.
Effective bits is equal to:
Some units may have higher standby currents than the typical indicated. Production
testing of standby current is prohibitive due to the 10 second delay time on DI
PD is pulled low.
(SNR + Distortion – 1.76 + [20 log
MAX.
–360
980
125
0.4
1.6
5.5
20
40
60
10
15
12
75
—
—
—
—
—
—
—
—
3
3
IN
and CH2
+25°C
TYP.
580
0.1
90
10
25
35
25
32
50
—
—
—
—
—
—
—
—
—
—
5
1
5
2
6.02
IN
are not used during dynamic testing of these
ADS-230/ADS-231
ADS-231
Binary
MIN.
4.75
510
2.4
Actual Input Amplitude
60
—
—
—
35
—
50
50
20
20
—
—
—
—
—
—
—
—
—
—
Full Scale Amplitude
–40 to +85°C
MAX.
–360
5.25
660
125
200
0.4
1.6
20
40
60
10
15
—
—
—
—
—
—
—
37
—
])
3
3
UNITS
mW
mA
mA
mA
µA
µA
pF
µA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
V
V
V
S
after