MAX1379ATP+ Maxim Integrated Products, MAX1379ATP+ Datasheet - Page 10

• Manufacturer Part Number: MAX1379ATP+
• Description: IC ADC 12BIT 1.25MSPS DL 20-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1379ATP+

• Number Of Bits: 12
• Sampling Rate (per Second): 1.25M
• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 2
• Power Dissipation (max): 40mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-WQFN, Exposed Pad
• Number Of Adc Inputs: 2
• Architecture: SAR
• Conversion Rate: 1.25 MSPs
• Resolution: 10 bit
• Interface Type: Dual Serial
• Voltage Reference: Internal 4.096 V or External
• Supply Voltage (max): 5 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, 12-Bit, 1.25Msps Simultaneous-Sampling
ADCs with Serial Interface
(V
10
AVDD
-100
-120
-0.2
-0.4
-0.6
-0.8
-1.0
-20
-40
-60
-80
1.0
0.8
0.6
0.4
0.2
2.0
1.6
1.2
0.8
0.4
0
0
0
______________________________________________________________________________________
-40
0
0
= 5V/3V, V
ANALOG INPUT FREQUENCY (kHz)
vs. DIGITAL OUTPUT CODE
-15
MAX1379 UNIPOLAR DNL
200
1024
MAX1379 GAIN ERROR
MAX1379 FFT PLOT
vs. TEMPERATURE
DIGITAL OUTPUT CODE
TEMPERATURE (°C)
L
10
= 3V, f
400
CHANNEL 1
f
f
f
SINAD = 70dB
SNR = 70.27dB
THD = -82.2dB
SFDR = 81.81dB
V
SAMPLE
SCLK
IN
2048
REF
= 300kHz
= 4.096V
= 28.8MHz
35
SCLK
= 1.8Msps
600
CHANNEL 2
3072
= 20MHz, T
60
800
4096
85
A
= +25°C, unless otherwise noted.)
-100
-120
-100
-120
-0.2
-0.4
-0.6
-0.8
-1.0
-20
-40
-60
-80
-20
-40
-60
-80
1.0
0.8
0.6
0.4
0.2
Typical Operating Characteristics (continued)
0
0
0
0
0
0
ANALOG INPUT FREQUENCY (kHz)
ANALOG INPUT FREQUENCY (kHz)
vs. DIGITAL OUTPUT CODE
f
f
f
SINAD = 70.43dB
SNR = 70.72dB
THD = -82.33dB
SFDR = 82.78dB
V
MAX1379 BIPOLAR DNL
1024
SAMPLE
SCLK
IN
REF
MAX1379 FFT PLOT
= 100kHz
DIGITAL OUTPUT CODE
MAX1379 FFT PLOT
= 4.096V
300
300
= 28.8MHz
= 1.8Msps
2048
f
f
f
SINAD = 69.58dB
SNR = 69.75dB
THD = -83.79dB
SFDR = 84.69dB
V
SAMPLE
SCLK
IN
REF
600
600
= 500kHz
= 4.096V
3072
= 28.8MHz
= 1.8Msps
4096
900
900
-100
-120
-0.3
-0.6
-0.9
-1.2
-1.5
-20
-40
-60
-80
-72
-74
-76
-78
-80
-82
-84
-86
0
0
-40
MAX1379 TOTAL HARMONIC DISTORTION
10
0
CHANNEL 2
ANALOG INPUT FREQUENCY (kHz)
MAX1379 OFFSET ERROR
-15
vs. SOURCE IMPEDENCE
SOURCE IMPEDANCE (Ω)
MAX1379 FFT PLOT
vs. TEMPERATURE
TEMPERATURE (°C)
300
CHANNEL 1
10
f
f
f
SINAD = 70.05dB
SNR = 70.32dB
THD = -82.35dB
SFDR = 83.22dB
V
SAMPLE
SCLK
IN
REF
= 250kHz
100
= 4.096V
f
= 28.8MHz
IN
= 500kHz
= 1.8Msps
35
600
f
IN
= 100kHz
60
1000
900
85