MAX1238EEE Maxim Integrated Products, MAX1238EEE Datasheet - Page 6
MAX1238EEE
Manufacturer Part Number
MAX1238EEE
Description
ADC (A/D Converters)
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX1237EUA.pdf
(22 pages)
Specifications of MAX1238EEE
Number Of Adc Inputs
12
Architecture
SAR
Conversion Rate
94.4 KSPs
Resolution
12 bit
Interface Type
I2C
Voltage Reference
Internal 4.096 V
Supply Voltage (max)
5 V
Mounting Style
SMD/SMT
Package / Case
QSOP-16
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX1238EEE
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX1238EEE+
Manufacturer:
Maxim
Quantity:
200
Part Number:
MAX1238EEE+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX1238EEE+T
Manufacturer:
FUJITSU
Quantity:
4 689
TIMING CHARACTERISTICS (Figure 1) (continued)
(V
4.096V (MAX1236/MAX1238), f
T
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
(V
ended, unipolar, T
6
Note 10: A master device must provide a data hold time for SDA (referred to V
Note 11: The minimum value is specified at +25°C.
Note 13: f
Note 12: C
A
DD
DD
= +25°C, see Tables 1–5 for programming notation.)
-0.2
-0.3
-0.4
-0.5
800
750
700
650
600
550
500
450
400
350
300
0.5
0.4
0.3
0.2
0.1
0.1
_______________________________________________________________________________________
0
= 2.7V to 3.6V (MAX1237/MAX1239), V
= 3.3V (MAX1237/MAX1239), V
-40
0
SUPPLY CURRENT vs. TEMPERATURE
EXTERNAL REFERENCE MAX1238/MAX1236
INTERNAL REFERENCE MAX1238/MAX1236
INTERNAL REFERENCE MAX1239/MAX1237
EXTERNAL REFERENCE MAX1239/MAX1237
and for the MAX1236/MAX1238 where N is the number of bits.
SCL’s falling edge (see Figure 1).
500
SCL
⎡
⎢
⎢
⎣
-25
[
B
DIFFERENTIAL NONLINEARITY
V
= total capacitance of one bus line in pF.
FS
1000 1500
must meet the minimum clock low time plus the rise/fall times.
-10
DIGITAL OUTPUT CODE
( .
vs. DIGITAL CODE
5 5
TEMPERATURE (°C)
A
5
= +25°C, unless otherwise noted.)
V
2000 2500 3000 3500
( .
)
5 5
20
−
V
FS
V
35
SETUP BYTE
EXT REF: 10111011
INT REF: 11011011
−
( .
4 5
4 5
50
.
V
V
65
)
)
]
SCL
DD
×
4000
80
2
V
= 5V (MAX1236/MAX1238), f
= 1.7MHz, T
N
REF
−
DD
1
⎤
⎥
⎥
⎦
= 4.5V to 5.5V (MAX1236/MAX1238), V
-0.2
-0.4
-0.6
-0.8
-1.0
0.6
0.5
0.4
0.3
0.2
0.1
1.0
0.8
0.6
0.4
0.2
0
0
2.7
0
SDA = SCL = V
A
500
SHUTDOWN SUPPLY CURRENT
3.2
= T
INTEGRAL NONLINEARITY
1000 1500
vs. SUPPLY VOLTAGE
DIGITAL OUTPUT CODE
SUPPLY VOLTAGE (V)
vs. DIGITAL CODE
MIN
3.7
DD
to T
2000 2500 3000 3500
4.2
SCL
Typical Operating Characteristics
MAX
= 1.7MHz, (50% duty cycle), f
4.7
, unless otherwise noted. Typical values are at
IL
of SCL) in order to bridge the undefined region of
5.2
4000
REF
= 2.048V (MAX1237/MAX1239), V
-100
-120
-140
-160
-180
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
-60
-80
0
-40
0
MAX1238
f
f
MAX1239
SAMPLE
IN
-25
= 10kHz
SHUTDOWN SUPPLY CURRENT
10k
-10
SAMPLE
= 94.4ksps
vs. TEMPERATURE
TEMPERATURE (°C)
FREQUENCY (Hz)
5
20k
FFT PLOT
20
= 94.4ksps, single-
30k
35
50
40k
65
REF
80
50k
=