MAX1274BETC+ Maxim Integrated Products, MAX1274BETC+ Datasheet - Page 8

IC ADC 12BIT 1.8MSPS 12-TQFN

MAX1274BETC+

Manufacturer Part Number
MAX1274BETC+
Description
IC ADC 12BIT 1.8MSPS 12-TQFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1274BETC+

Number Of Bits
12
Sampling Rate (per Second)
1.8M
Data Interface
MICROWIRE™, QSPI™, Serial, SPI™
Number Of Converters
1
Power Dissipation (max)
45mW
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
12-WQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
1.8Msps, Single-Supply, Low-Power,
True-Differential, 12-Bit ADCs
(V
at T
8
DD
A
_______________________________________________________________________________________
5, 11
= +5V, V
PIN
= +25°C)
10
12
1
2
3
4
6
7
8
9
L
= V
CNVST
NAME
RGND
DOUT
DD
SCLK
AIN+
GND
AIN-
N.C.
V
REF
V
EP
DD
, V
L
1.0
0.8
0.6
0.4
0.2
REF
0
-40
= 4.096V, f
Negative Analog Input
External Reference Voltage Input. V
capacitor and a 4.7µF capacitor to RGND.
Reference Ground. Connect RGND to GND.
Positive Analog Supply Voltage (+4.75V to +5.25V). Bypass V
capacitor to GND.
No Connection
Ground. GND is internally connected to EP.
Positive Logic Supply Voltage (1.8V to V
to GND.
Serial Data Output. Data is clocked out on the rising edge of SCLK.
Convert Start. Forcing CNVST high prepares the part for a conversion. Conversion begins on the
falling edge of CNVST. The sampling instant is defined by the falling edge of CNVST.
Serial Clock Input. Clocks data out of the serial interface. SCLK also sets the conversion speed.
Positive Analog Input
Exposed Paddle. EP is internally connected to GND.
-15
V
vs. TEMPERATURE
L
TEMPERATURE (°C)
SUPPLY CURRENT
10
SCLK
CONVERTING
f
SCLK
FULL/PARTIAL
POWER-DOWN
f
SCLK
= 28.8MHz
= 28.8MHz, T
35
= 28.8MHz
Typical Operating Characteristics (continued)
60
A
85
= -40°C to +85°C, unless otherwise noted. Typical values are measured
REF
sets the analog input range. Bypass REF with a 0.01µF
DD
1.0
0.8
0.5
0.3
). Bypass V
0
FUNCTION
0
vs. CONVERSION RATE
500
V
L
L
with a 0.01µF capacitor and a 10µF capacitor
SUPPLY CURRENT
f
SAMPLE
1000
DD
V
L
(kHz)
V
= 3V
L
with a 0.01µF capacitor and a 10µF
= 5V
1500
V
L
= 1.8V
Pin Description
2000

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