Datasheet

MAX1276/MAX1278
1.8Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(V
DD
= +5V, V
L
= V
DD
, f
SCLK
= 28.8MHz, f
SAMPLE
= 1.8Msps, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are
meas- ured at T
A
= +25°C.)
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE (MAX1276)
MAX1276/78 toc01
DIGITAL OUTPUT CODE
INL (LSB)
307220481024
-0.75
-0.50
-0.25
0
0.25
0.50
0.75
1.00
-1.00
0 4096
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE (MAX1278)
MAX1276/78 toc02
DIGITAL OUTPUT CODE
INL (LSB)
10240-1024
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
-2048 2048
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE (MAX1276)
MAX1276/78 toc03
DIGITAL OUTPUT CODE
DNL (LSB)
307220481024
-0.75
-0.50
-0.25
0
0.25
0.50
0.75
1.00
-1.00
04096
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE (MAX1278)
MAX1276/78 toc04
DIGITAL OUTPUT CODE
DNL (LSB)
10240-1024
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
-2048 2048
OFFSET ERROR
vs. TEMPERATURE (MAX1276)
MAX1276/78 toc05
TEMPERATURE (°C)
OFFSET ERROR (LSB)
6035-15 10
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
-0.4
-40 85
OFFSET ERROR
vs. TEMPERATURE (MAX1278)
MAX1276/78 toc06
TEMPERATURE (°C)
OFFSET ERROR (LSB)
6035-15 10
-0.75
-0.50
-0.25
0
0.25
0.50
0.75
1.00
-1.00
-40 85
GAIN ERROR
vs. TEMPERATURE (MAX1276)
MAX1276/78 toc07
TEMPERATURE (°C)
GAIN ERROR (LSB)
603510-15
-2.5
-2.0
-1.5
-1.0
-0.5
-3.0
-40 85
GAIN ERROR
vs. TEMPERATURE (MAX1278)
MAX1276/78 toc08
TEMPERATURE (°C)
GAIN ERROR (LSB)
603510-15
-2.5
-3.0
-2.0
-1.5
-1.0
-0.5
-40 85
DYNAMIC PERFORMANCE
vs. INPUT FREQUENCY (MAX1276)
MAX1276/78 toc09
ANALOG INPUT FREQUENCY (kHz)
DYNAMIC PERFORMANCE (dB)
400300200
70.5
71.0
71.5
72.0
70.0
100 500
SNR
SINAD