MAX1272CUA+ Maxim Integrated, MAX1272CUA+ Datasheet - Page 5

• Manufacturer Part Number: MAX1272CUA+
• Description: Analog to Digital Converters - ADC FAULT-PROTECTED 12-BIT ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1272CUA+

• Rohs: yes
• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 87 KSPs
• Resolution: 12 bit
• Input Type: Single-Ended
• Snr: Yes
• Interface Type: QSPI, Serial (SPI, Microwire)
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Package / Case: uMAX
• Maximum Power Dissipation: 727 mW
• Minimum Operating Temperature: 0 C
• Number Of Converters: 1
• Voltage Reference: Internal, External

TIMING CHARACTERISTICS
(V
50% duty cycle, C
Note 1: Accuracy specifications tested at V
Note 2: Offset error nulled. The ideal last-code transition is (FS - 1.5 LSB).
Note 3: PSRR measured at full scale. Tested at ±10V (MAX1272) and ±4.096V (MAX1273) input ranges.
Note 4: Acquisition and conversion times are dependent on the clock speed.
(Typical operating circuit, BIP = RNG = 1, V
50% duty cycle, 87ksps, T
DIN to SCLK Setup
DIN to SCLK Hold
SCLK Fall to Output Data Valid
CS Fall to Output Enable
CS Rise to Output Disable
CS to SCLK Rise Setup
CS to SCLK Rise Hold
SCLK Pulse Width High
SCLK Pulse Width Low
DD
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
= 4.75V to 5.25V, unipolar/bipolar input range, external reference mode, V
4.75
rejection test.
INTERNAL
REFERENCE
4.80
PARAMETERS
CONVERTING SUPPLY CURRENT
4.85 4.90 4.95 5.00
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
LOAD
EXTERNAL
REFERENCE
_______________________________________________________________________________________
= 50pF, T
5.05 5.10
A
with Software-Selectable Input Range
= +25°C, unless otherwise noted.)
A
5.15
V
= -40°C to +85°C, unless otherwise noted. Typical values are at T
AIN
5.20
= 0
SYMBOL
5.25
t
t
t
t
t
t
t
CSS
CSH
t
t
DH
DO
CH
DS
DV
TR
CL
DD
DD
= 5V. Performance at power-supply tolerance limit is guaranteed by power-supply
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
= 5V, external reference mode, V
-40
Fault-Protected, 12-Bit ADCs
INTERNAL
REFERENCE
CONVERTING SUPPLY CURRENT
-15
vs. TEMPERATURE
TEMPERATURE (°C)
EXTERNAL
REFERENCE
CONDITIONS
10
Typical Operating Characteristics
35
V
60
AIN
= 0
REF
85
REF
= 4.096V, C
= 4.096V, C
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
A
-40
MIN
100
100
200
200
= +25°C.) (Figures 1 and 4)
20
0
REF
REF
STANDBY SUPPLY CURRENT
-15
vs. TEMPERATURE
= 1.0μF, f
= 1.0μF, f
TYP
TEMPERATURE (°C)
INTERNAL
REFERENCE
EXTERNAL
REFERENCE
10
MAX
35
SCLK
SCLK
250
100
100
0
= 1.4MHz,
= 1.4MHz,
60
V
AIN
UNITS
= 0
ns
ns
ns
ns
ns
ns
ns
ns
ns
85
5