MAX1224CTC-T Maxim Integrated, MAX1224CTC-T Datasheet - Page 8

• Manufacturer Part Number: MAX1224CTC-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1224CTC-T

• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 1.5 MSPs
• Resolution: 12 bit
• Input Type: Differential
• Snr: No
• Interface Type: 3-Wire, Microwire, QSPI, Serial, SPI
• Operating Supply Voltage: 3 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: External

1.5Msps, Single-Supply, Low-Power,
True-Differential, 12-Bit ADCs
(V
values are measured at T
8
DD
_______________________________________________________________________________________
9
6
3
0
5, 11
PIN
= +3V, V
10
12
—
1
2
3
4
6
7
8
9
0
250
vs. CONVERSION RATE
V
L
DD
= V
500
SUPPLY CURRENT
CNVST
NAME
RGND
DOUT
f
SCLK
SAMPLE
GND
AIN+
DD
AIN-
N.C.
REF
V
V
EP
DD
L
750
, V
(kHz)
A
REF
= +25°C)
1000
= 2.048V, 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 (+2.7V to +3.6V). 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.
1250
1500
SCLK
= 24MHz, f
0.5
0.4
0.3
0.2
0.1
Typical Operating Characteristics (continued)
0
-40
V
L
SUPPLY CURRENT vs. TEMPERATURE
-15
CONVERSION, V
SAMPLE
CONVERSION, V
TEMPERATURE (°C)
10
REF
= 1.5Msps, T
L
L
= 3V
= 1.8V
sets the analog input range. Bypass REF with a 0.01µF
35
DD
). Bypass V
FUNCTION
60
A
= -40°C to +85°C, unless otherwise noted. Typical
85
L
with a 0.01µF capacitor and a 10µF capacitor
DD
250
200
150
100
with a 0.01µF capacitor and a 10µF
50
0
0
250
vs. CONVERSION RATE
V
L
Pin Description
V
SUPPLY CURRENT
500
L
= 3V
f
SAMPLE
750
(kHz)
100
V
L
= 1.8V
1250
1500