MAX148BEAP Maxim Integrated Products, MAX148BEAP Datasheet - Page 3

• Manufacturer Part Number: MAX148BEAP
• Description: ADC (A/D Converters)
• Manufacturer: Maxim Integrated Products

Specifications of MAX148BEAP

• Number Of Adc Inputs: 8
• Architecture: SAR
• Conversion Rate: 133 KSPs
• Resolution: 10 bit
• Input Type: Voltage
• Interface Type: 4-Wire (SPI, QSPI, Microwire, TMS320)
• Voltage Reference: Internal 2.5 V or External
• Supply Voltage (max): 5 V
• Maximum Power Dissipation: 640 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-20
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: No

ELECTRICAL CHARACTERISTICS (continued)
(V
MAX149—4.7FF capacitor at VREF pin; MAX148—external reference, VREF = 2.500V applied to VREF pin; T
otherwise noted.)
CONVERSION RATE (continued)
Internal Clock Frequency
External Clock Frequency
ANALOG/COM INPUTS
Input Voltage Range, Single-
Ended and Differential (Note 6)
Multiplexer Leakage Current
Input Capacitance
INTERNAL REFERENCE (MAX149 Only, Reference Buffer Enabled)
VREF Output Voltage
VREF Short-Circuit Current
VREF Temperature Coefficient
Load Regulation (Note 8)
Capacitive Bypass at VREF
Capacitive Bypass at REFADJ
REFADJ Adjustment Range
EXTERNAL REFERENCE AT VREF (Buffer Disabled)
VREF Input Voltage Range
(Note 9)
VREF Input Current
VREF Input Resistance
Shutdown VREF Input Current
REFADJ Buffer-Disable Threshold
EXTERNAL REFERENCE AT REFADJ
Capacitive Bypass at VREF
Reference Buffer Gain
REFADJ Input Current
DD
= +2.7V to +5.25V; COM = 0; f
PARAMETER
_______________________________________________________________________________________
+2.7V to +5.25V, Low-Power, 8-Channel,
SYMBOL
SCLK
= 2.0MHz; external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps);
SHDN = unconnected
SHDN = V
Data transfer only
Unipolar, COM = 0
Bipolar, COM = VREF/2
On/off leakage current, V
T
MAX149
0 to 0.2mA output load
Internal compensation mode
External compensation mode
VREF = 2.500V
Internal compensation mode
External compensation mode
MAX149
MAX148
MAX149
MAX148
A
= +25°C (Note 7)
DD
CONDITIONS
CH_
= 0 or V
Serial 10-Bit ADCs
DD
2.470
V
MIN
0.01
0.1
4.7
1.0
0.5
4.7
DD
18
1
0
0
-
±0.01
0.225
2.500
±1.5
TYP
0.35
0.01
2.06
2.00
±30
100
1.8
16
25
A
= T
0 to VREF
MIN
±VREF/2
V
2.530
50mV
MAX
±50
±10
150
DD
2.0
2.0
±1
30
10
to T
+
MAX
ppm/°C
UNITS
, unless
MHz
MHz
mA
mV
V/V
kΩ
μA
pF
μF
μF
μA
μA
μF
μA
%
V
V
V
V
3