Datasheet
MAX1034/MAX1035
8-/4-Channel, ±V
REF
Multirange Inputs,
Serial 14-Bit ADCs
_______________________________________________________________________________________
9
EXTERNAL REFERENCE INPUT CURRENT
vs. EXTERNAL REFERENCE INPUT VOLTAGE
MAX1034/35 toc12
EXTERNAL REFERENCE VOLTAGE (V)
EXTERNAL REFERENCE CURRENT (mA)
4.104.054.003.953.903.85
0.13
0.14
0.15
0.16
0.12
3.80 4.15
ALL MODES
-0.10
-0.04
-0.06
-0.08
-0.02
0
0.02
0.04
0.06
0.08
0.10
-40 10-15 35 60 85
GAIN DRIFT
vs. TEMPERATURE
MAX1034/35 toc13
TEMPERATURE (
°
C)
GAIN DRIFT (%)
+V
REF
/2 BIPOLAR
±
V
REF
BIPOLAR RANGE
±
V
REF
/4 BIPOLAR
-1.0
-0.4
-0.6
-0.8
-0.2
0
0.2
0.4
0.6
0.8
1.0
-40 10-15 35 60 85
OFFSET DRIFT
vs. TEMPERATURE
MAX1034/35 toc14
TEMPERATURE (
°
C)
OFFSET ERROR (mV)
+V
REF
/4 BIPOLAR RANGE
±
V
REF
BIPOLAR
CHANNEL-TO-CHANNEL ISOLATION
vs. INPUT FREQUENCY
MAX1034/35 toc15
FREQUENCY
(
kHz
)
ISOLATION (dB)
100010010
-100
-80
-60
-40
-20
0
-120
1 10,000
f
SAMPLE
= 115ksps
±
V
REF
BIPOLAR RANGE
CH0 TO CH2
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX1034/35 toc16
FREQUENCY (kHz)
CMRR (dB)
100010010
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
1 10,000
f
SAMPLE
= 115ksps
±
V
REF
BIPOLAR RANGE
1.0
0.5
0
-0.5
-1.0
0 81924096 12,288 16,383
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX1034/35 toc17
DIGITAL OUTPUT CODE
INL (LSB)
f
SAMPLE
= 115ksps
±V
REF
BIPOLAR RANGE
1.0
0.5
0
-0.5
-1.0
0 81924096 12,288 16,383
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX1034/35 toc18
DIGITAL OUTPUT CODE
DNL (LSB)
f
SAMPLE
= 115ksps
±V
REF
BIPOLAR RANGE
-140
-100
-120
-60
-80
-20
-40
0
0203010 40 50
FFT AT 5kHz
MAX1034/35 toc19
FREQUENCY (kHz)
MAGNITUDE (dB)
f
SAMPLE
= 115ksps
f
IN(SINE WAVE)
= 5kHz
±V
REF
BIPOLAR RANGE
Typical Operating Characteristics (continued)
(V
AVDD1
= V
AVDD2
= V
DVDD
= V
DVDDO
= 5V, V
AGND1
= V
DGND
= V
DGNDO
= V
AGND2
= V
AGND3
= 0V, f
CLK
= 3.5MHz (50% duty
cycle), external clock mode, V
REF
= 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input
range (±V
REF
), C
DOUT
= 50pF, C
SSTRB
= 50pF, unless otherwise noted.)