MAX11138ATI+ Maxim Integrated, MAX11138ATI+ Datasheet - Page 16
MAX11138ATI+
Manufacturer Part Number
MAX11138ATI+
Description
Analog to Digital Converters - ADC 500ksps, Low-Power, Serial 12-/10-/8-Bit
Manufacturer
Maxim Integrated
Datasheet
1.MAX11140ATI.pdf
(40 pages)
Specifications of MAX11138ATI+
Rohs
yes
Number Of Channels
4/2
Architecture
SAR
Conversion Rate
500 kSPs
Resolution
10 bit
Input Type
Single-Ended/Differential
Snr
61.7 dB
Interface Type
3-Wire, QSPI, SPI
Operating Supply Voltage
2.35 V to 3.6 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Package / Case
TQFN-28
Maximum Power Dissipation
2758 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
1 V
(4 CHANNEL)
26, 27, 28, 1
MAX11135
MAX11138
MAX11141
14, 16
17, 18
2–11
12
13
15
19
20
21
22
23
24
25
—
—
—
—
—
26, 27, 28, 1–5
(8 CHANNEL)
MAX11136
MAX11139
MAX11142
14, 16
17, 18
6–11
500ksps, Low-Power, Serial 12-/10-/8-Bit,
—
—
—
12
—
13
15
19
20
21
22
23
24
25
—
(16 CHANNEL)
MAX11137
MAX11140
MAX11143
26, 27, 28,
14, 16
17, 18
1–11
—
—
—
12
—
13
—
15
19
20
21
22
23
24
25
—
AIN0–AIN13
AIN0–AIN7
AIN0–AIN3
CNVST/
CNVST
NAME
DGND
AIN14
AIN15
OVDD
DOUT
REF+
SCLK
REF-/
GND
GND
REF-
EOC
V
DIN
CS
EP
DD
Analog Inputs
Analog Inputs
Analog Inputs
Ground
Active-Low Conversion Start Input/Analog Input 14
Active-Low Conversion Start Input
External Differential Reference Negative Input /Analog
Input 15
External Differential Reference Negative Input
Ground
External Positive Reference Input. Apply a reference
voltage at REF+. Bypass to GND with a 0.47FF
capacitor.
Power-Supply Input. Bypass to GND with a 10FF in
parallel with a 0.1FF capacitors.
Serial Clock Input. Clocks data in and out of the serial
interface
Active-Low Chip Select Input. When CS is low, the serial
interface is enabled. When CS is high, DOUT is high
impedance or three-state.
Serial Data Input. DIN data is latched into the serial
interface on the rising edge of SCLK.
Digital I/O Ground
Interface Digital Power-Supply Input. Bypass to GND
with a 10FF in parallel with a 0.1FF capacitors.
Serial Data Output. Data is clocked out on the falling
edge of SCLK. When CS is high, DOUT is high
impedance or three-state.
End of Conversion Output. Data is valid after EOC pulls
low (Internal clock mode only).
Exposed Pad. Connect EP directly to GND plane for
guaranteed performance.
MAX11135–MAX11143
4-/8-/16-Channel ADCs
FUNCTION
Pin Description
16