MAX1379EVKIT+ Maxim Integrated Products, MAX1379EVKIT+ Datasheet - Page 8

• Manufacturer Part Number: MAX1379EVKIT+
• Description: EVAL KIT FOR MAX1379
• Manufacturer: Maxim Integrated Products

Specifications of MAX1379EVKIT+

• Number Of Adc's: 2
• Number Of Bits: 12
• Sampling Rate (per Second): 1.25M
• Data Interface: Serial
• Inputs Per Adc: 2 Single
• Input Range: ±VREF/2
• Power (typ) @ Conditions: 85.5mW @ 1.25MSPS
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: MAX1379
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, 12-Bit, 1.25Msps Simultaneous-Sampling
ADCs with Serial Interface
TIMING CHARACTERISTICS (Figures 6, 10)
V
T
Note 1: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the gain error and the offset
Note 2: Offset nulled.
Note 3: Conversion time is defined as the number of clock cycles (16) multiplied by the clock period. Clock has 50% duty cycle.
Note 4: At sample rates below 10ksps, the input full linear bandwidth is reduced to 5kHz.
Note 5: SCLK and CNVST not switching during measurement.
(V
8
SCLK Clock Period
SCLK Duty Cycle
SCLK Pulse-Width High
SCLK Pulse-Width Low
SCLK Rise to DOUT_ Transition
DOUT_ Remains Valid After
SCLK
CNVST Fall to SCLK Fall
CNVST Pulse Width
Power-Up Time; Full Power-Down
SEL to CNVST Fall
SEL Hold to CNVST Fall
CS Fall To CNVST Fall
Restart Time; Partial Power-Down
MAX
AVDD
AVDD
-100
-120
-20
-40
-60
-80
_______________________________________________________________________________________
, unless otherwise noted. Typical values are at T
0
= 4.25V to 5.25V, V
0
= 5V/3V, V
error have been nulled.
PARAMETER
100
ANALOG INPUT FREQUENCY (kHz)
MAX1377 BIPOLAR FFT
200
L
= 3V, f
f
f
f
SINAD = 60.052dB
SNR = 69.073dB
THD = -92.267dB
SFDR = 93.225dB
V
300
SAMPLE
SCLK
IN
REF
= 100kHz
= 2.048V
= 20MHz
L
SCLK
400
= 1.25MHz
= 1.8V to AVDD, V
= 20MHz, T
500
t
SYMBOL
SEL_SETUP
t
t
t
600
t
PWR-UP
t
DHOLD
CH
SETUP
DOUT
t
t
t
CSW
t
RCV
t
t
CST
CP
CH
CL
/t
CL
A
= +25°C, unless otherwise noted.)
REF
-100
-120
-20
-40
-60
-80
C
C
C
C
External load on REF < 3µF
External load on REF < 3µF
No external load
0
= 4.096V, f
L
L
L
L
0
= 30pF, V
= 30pF, V
= 30pF, V
= 30pF
A
= +25°C.)
100
ANALOG INPUT FREQUENCY (kHz)
MAX1377 BIPOLAR FFT
SCLK
200
L
L
L
= 5V
= 3V
= 1.8V
CONDITIONS
f
f
f
SINAD = 68.720dB
SNR = 68.769dB
THD = -88.244dB
SFDR = 91.237dB
V
SAMPLE
SCLK
IN
300
= 20MHz for MAX1379, 50% duty cycle, C
REF
= 250kHz
= 2.048V
= 20MHz
Typical Operating Characteristics
400
= 1.25MHz
500
600
-100
-120
-20
-40
-60
-80
0
22.5
22.5
0
MIN
100
50
45
10
20
10
f
f
f
SINAD = 68.542dB
SNR = 68.554dB
THD = -90.391dB
SFDR = 94.350dB
V
4
SAMPLE
SCLK
IN
REF
= 500kHz
100
= 2.048V
ANALOG INPUT FREQUENCY (kHz)
= 20MHz
MAX1377 BIPOLAR FFT
= 1.25MHz
TYP
120
200
16
2
2
L
= 30pF, T
300
MAX
55
14
17
24
400
A
500
= T
UNITS
Cycles
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
MIN
600
to