MAX11202EUB+T Maxim Integrated, MAX11202EUB+T Datasheet - Page 6

• Manufacturer Part Number: MAX11202EUB+T
• Description: Analog to Digital Converters - ADC 24 Bit Sigma Delta ADC
• Manufacturer: Maxim Integrated

Specifications of MAX11202EUB+T

• Number Of Channels: 1
• Architecture: Sigma-Delta
• Conversion Rate: 120 SPs
• Resolution: 24 bit
• Input Type: Single-Ended
• Interface Type: SPI
• Operating Supply Voltage: 1.7 V to 3.6 V, 2.7 V to 3.6 V
• Maximum Power Dissipation: 444 mW
• Number Of Converters: 1
• Voltage Reference: 3.6 V

(V
are at T
24-Bit, Single-Channel, Ultra-Low-Power, Delta
Sigma ADC with 2-Wire Serial Interface
6
AVDD
______________________________________________________________________________________
2.6
2.5
2.4
2.3
2.2
2.1
14
12
10
-1
-2
-3
-4
-5
5
4
3
2
1
0
8
6
4
2
0
2.70
-2.7
0
A
= 3.6V, V
V
INTERNAL OSCILLATOR FREQUENCY
30,000 CONSECUTIVE READINGS
= +25NC.)
T
V
RMS = 0.72µV
T
V
RMS = 2.1µV
MEAN = 5.0µV
DVDD
A
IN
A
REF
= +25°C
= +25°C
= 0V
2.85
-0.3
LONG-TERM ADC READINGS
= 2.5V
= 1.8V
2
(MAX11202A, 120sps)
NOISE HISTOGRAM
vs. AVDD VOLTAGE
DVDD
3.00
2.0
AVDD VOLTAGE (V)
ADC OUTPUT (µV)
(MAX11202B)
4
TIME (min)
4.3
3.15
= 1.8V, V
MAX11202A
MAX11202B
6
6.7
3.30
REFP
9.0
8
3.45
11.3
- V
3.60
10
REFN
= AVDD; internal clock; T
-0.5
-1.0
Typical Operating Characteristics (continued)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2.0
1.5
1.0
0.5
20
18
16
14
12
10
0
8
6
4
2
0
0
-2.5
1.0
1.19
V
30,000 CONSECUTIVE READINGS
V
T
V
RMS = 0.72µV
MEAN = 4.1µV
REF
-2.0 -1.5 -1.0
REF
A
REF
T
A
= +25°C
2.04
= +85°C
1.5
= 2.5V
(MAX11202A/MAX11202B)
= V
= 2.5V
NOISE vs. INPUT VOLTAGE
(MAX11202B, 13.75sps)
OFFSET ERROR vs. V
REFP
NOISE HISTOGRAM
2.89
INPUT VOLTAGE (V)
2.0
V
ADC OUTPUT (µV)
- V
REF
-0.5
REFN
T
A
VOLTAGE (V)
3.74
= -45°C
2.5
0 0.5
T
A
A
4.59
= +25°C
MAX11202A
MAX11202B
3.0
= T
1.0
REF
5.44
MIN
1.5
3.5
to T
2.0
6.29
2.5
4.0
MAX
, unless otherwise specified. Typical values
-10
-15
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2.5
2.0
1.5
1.0
0.5
15
10
-5
5
0
0
0
-45
-45
0
V
CALIBRATED AT +25°C
T
V
RMS = 2.1µV
OFFSET ERROR vs. TEMPERATURE
REF
A
IN
= +25°C
-25
-25
= 0V
LONG-TERM ADC READINGS
= 3.0V
(MAX11202A/MAX11202B)
0.2
NOISE vs. TEMPERATURE
-5
-5
TEMPERATURE (°C)
TEMPERATURE (°C)
(MAX11202A)
0.4
TIME (min)
15
15
MAX11202A
MAX11202B
35
35
0.6
55
55
0.8
75
75
1.0
95
95