MAX1274BCTC Maxim Integrated, MAX1274BCTC Datasheet - Page 8

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MAX1274BCTC

Manufacturer Part Number
MAX1274BCTC
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1274BCTC

Number Of Channels
1
Architecture
SAR
Conversion Rate
1800 KSPs
Resolution
12 bit
Input Type
Differential
Snr
70 dB
Interface Type
QSPI, Serial (SPI, Microwire)
Operating Supply Voltage
4.75 V to 5.25 V
Maximum Operating Temperature
+ 70 C
Package / Case
TQFN EP
Maximum Power Dissipation
1349 mW
Minimum Operating Temperature
0 C
Number Of Converters
1
Voltage Reference
5.25 V
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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