Datasheet

MAX197
Multi-Range (±10V, ±5V, +10V, +5V),
Single +5V, 12-Bit DAS with 8+4 Bus Interface
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 5V ±5%; unipolar/bipolar range; external reference mode, V
REF
= 4.096V; 4.7µF at REF pin; external clock, f
CLK
= 2.0MHz
with 50% duty cycle; T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
f
CLK
= 2.0MHz
T
A
= +25°C
(Note 5)
Unipolar
CONDITIONS
mA30Output Short-Circuit Current
ppm/°C40REF Output Tempco
V4.076 4.096 4.116V
REF
REF Output Voltage
pF40Input Capacitance
µs3Track/Hold Acquisition Time
05
V
010
Input Voltage Range
(See Table 1)
1.25
-3dB rolloff
2.5
UNITSMIN TYP MAXSYMBOLPARAMETER
MHz
5
Small-Signal Bandwidth
2.5
Bipolar
Unipolar
-600 360
0V to 10V range
-1200 720
0V to 5V range
-10V to 10V range
-5V to 5V range
Bipolar
µA
720
Input Current
Unipolar
360
16
kΩ
21
Input Dynamic Resistance
Bipolar
-5 5
-10 10
0mA to 0.5mA output current (Note 6) mV7.5Load Regulation
V2.465 2.500 2.535REFADJ Output Voltage
µF4.7Capacitive Bypass at REF
With recommended circuit (Figure 1) %±1.5REFADJ Adjustment Range
V/V1.6384Buffer Voltage Gain
V2.4 4.18Input Voltage Range
µA
400
Input Current V
REF
= 4.18V
1
VV
DD
- 50mV
REFADJ Threshold for
Buffer Disable
Normal or STANDBY power-down mode kΩ10
Input Resistance
FULL power-down mode 5 MΩ
ANALOG INPUT
INTERNAL REFERENCE
REFERENCE INPUT (Buffer disabled, reference input applied to REF pin)
±10V range
±5V range
0V to 10V range
0V to 5V range
Normal or STANDBY
power-down mode
FULL power-down
mode
TC V
REF