Datasheet

MAX132
±18-Bit ADC with Serial Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V+ = 5V, V- = -5V, DGND = AGND = IN LO = REF- = 0V, REF+ = 545mV, R
INT
= 602kΩ, C
INT
= 0.0047µF, C
REF
= 0.1µF,
f
CLK
= 32,768Hz, 60Hz mode, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage
V+ to DGND..............................................-0.3V < V+ < +6.0V
V- to DGND ................................................+0.3V < V- < -9.0V
V+ to V-............................................................................+15V
Analog Input Voltage (any input).....................................V+ to V-
Digital Input Voltage .....................(DGND - 0.3V) to (V+ + 0.3V)
Continuous Power Dissipation
Narrow Plastic DIP (derate 8.70mW/°C above +70°C)....478mW
Wide SO (derate 11.76mW/°C above +70°C)..............647mW
Narrow CERDIP (derate 12.50mW/°C above +70°C) ..688mW
Operating Temperature Ranges
MAX132C_ _ .......................................................0°C to +70°C
MAX132E_ _ ....................................................-40°C to +85°C
MAX132MRG.................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
Bits
±18Resolution
UNITSMIN TYP MAXPARAMETER
(Note 1)
CONDITIONS
V
IN
HI = 0V % of FSR
±0.0168
0 ±0.0076
Zero Error
f
CLK
= 32.768Hz
(Note 4)
ms63
±0.032
Rollover Error
(Notes 2, 3)
% of FSR
0 ±0.010
% of FSR±0.0015 ±0.006Integral Nonlinearity
IN HI = IN LO V±3.0
Input Voltage Range
Common-Mode Range
(Note 3) ppm/°C±5Scale Factor Temp. Coefficient
(Note 3) ppm/°C±0.15 ±1.5
µV15RMS Noise
Zero-Reading Drift
mV±512
Conversion Time
V
IN
HI = 400mV, V- = -5.0V,
4.5V ≤ V+ ≤ 5.5V
±0.003 ±0.0168
% of FSR
±0.003 ±0.0061
Positive Supply Rejection
Digital input = 0V or V+
Digital input = 0V or V+
µA110
µA-25 -60Digital Ground Supply Current
Positive Sleep-Mode Current
Digital input = 0V or V+
Digital input = 0V or V+
µA-35 -65
µA60 125Positive Supply Current
Negative Supply Current
Digital input = 0V or V+ µA-1 -10Negative Sleep-Mode Current
V-5.5 -4.5
V4.5 5.5Positive Supply Voltage
Negative Supply Voltage
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= +25°C
T
A
= T
MIN
to T
MAX
IN HI to IN LO, for specified accuracy
% of FSR
±0.25 ±0.50
Common-Mode Rejection Ratio IN HI = IN LO
±0.009 ±0.032V
CM
= ±500mV
V
CM
= ±3.0V
pA
±12 ±250
Leakage Current IN HI, IN LO
±2 ±10T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25°C
V
IN
HI = 400mV, V- = 5.0V,
-5.5V ≤ V- ≤ -4.5V
±0.003 ±0.0168
% of FSR
±0.003 ±0.0061
Negative Supply Rejection
Digital input = 0V or V+ µA0±2
Digital Ground Sleep-Mode
Current
T
A
= +25°C
% of FSR±3.1Read-Zero 50Hz/60Hz Range
ACCURACY
POWER REQUIREMENTS