MAX1289EKA-T Maxim Integrated, MAX1289EKA-T Datasheet - Page 4

• Manufacturer Part Number: MAX1289EKA-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1289EKA-T

• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 150 KSPs
• Resolution: 12 bit
• Input Type: Single-Ended
• Snr: No
• Interface Type: 3-Wire, Microwire, QSPI, Serial, SPI
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23
• Maximum Power Dissipation: 696 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: External

150ksps, 12-Bit, 2-Channel Single-Ended, and
1-Channel True-Differential ADCs
TIMING CHARACTERISTICS (Figures 1, 2, and 5)
(V
0.1µF capacitor at REF, f
noted. Typical values at T
Note 1: Unipolar mode.
Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
Note 3: Offset nulled.
Note 4: The absolute input voltage range for the analog inputs is from GND to V
Figure 1. Detailed Serial-Interface Timing Sequence
Figure 2. Load Circuits for Enable/Disable Times
4
SCLK Pulse Width High
SCLK Pulse Width Low
SCLK Fall to DOUT Transition
SCLK Rise to DOUT Disable
CNVST Rise to DOUT Enable
CNVST Fall to MSB Valid
CNVST Pulse Width
DD
_______________________________________________________________________________________
CNVST
DOUT
= +2.7V to +3.6V, V
SCLK
been calibrated.
PARAMETERS
HIGH-Z
t
DOE
a) HIGH -Z TO V
SCLK
REF
A
DOUT
6kΩ
= +25°C.)
= +2.5V, 0.1µF capacitor at REF, or V
= 8MHz (50% duty cycle); AIN- = GND for MAX1288/MAX1289. T
OH
, V
OL
SYMBOL
TO V
t
GND
t
t
CONV
t
t
DOD
DOE
CSW
t
DOT
t
CH
CL
OH
, AND V
OH
C
C
C
C
TO HIGH -Z
LOAD
LOAD
LOAD
LOAD
C
L
= 30pF
= 30pF
= 30pF
= 30pF
• • •
• • •
• • •
CONDITIONS
DD
= +4.75V to +5.25V for MAX1286/MAX1288, V
b) HIGH -Z TO V
DOUT
t
DOT
DD
.
OL
6kΩ
, V
OH
t
CL
TO V
V
C
GND
DD
OL
L
, AND V
A
t
MIN
100
CH
38
38
30
= T
OL
TO HIGH -Z
MIN
to T
TYP
MAX,
t
CSW
unless otherwise
MAX
500
3.7
REF
t
60
80
DOD
= +4.096V,
HIGH-Z
UNITS
ns
ns
ns
ns
ns
µs
ns