MAX1379ATP+ Maxim Integrated Products, MAX1379ATP+ Datasheet - Page 24

• 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
zation noise only. With an input range equal to the full-
scale range of the ADC, calculate the ENOB as follows:
Total harmonic distortion (THD) is the ratio of the RMS
sum of the first five harmonics of the input signal to the
fundamental itself. This is expressed as:
where V
V
harmonics.
Spurious-free dynamic range (SFDR) is the ratio of the
RMS amplitude of the fundamental (maximum signal
component) to the RMS value of the next largest distor-
tion component.
Full-power bandwidth is the frequency at which the input
signal amplitude attenuates by 3dB for a full-scale input.
Full-linear bandwidth is the frequency at which the sig-
nal-to-noise plus distortion (SINAD) is equal to 56dB.
PROCESS: BiCMOS
24
5
are the amplitudes of the 2nd- through 5th-order
______________________________________________________________________________________
THD
MAX1377
MAX1379
MAX1383
1
PART
is the fundamental amplitude, and V
=
20
ENOB
×
Spurious-Free Dynamic Range
log
⎛
⎜
⎜
⎝
=
Total Harmonic Distortion
⎛
⎜
⎝
V
SUPPLY VOLTAGE (V)
SINAD
2
2
Full-Power Bandwidth
Full-Linear Bandwidth
+
Chip Information
6 02
V
4.75 to 5.25
4.75 to 5.25
.
2.7 to 3.6
3
−
2
V
1 76
+
1
.
V
4
⎞
⎟
⎠
2
+
V
5
2
⎞
⎟
⎟
⎠
2
through
VOLTAGE (V)
REFERENCE
INTERNAL
2.048
4.096
2.5
Any device with nonlinearities creates distortion prod-
ucts when two sine waves at two different frequencies
(f1 and f2) are input into the device. Intermodulation
distortion (IMD) is the total power of the IM2 to IM5
intermodulation products to the Nyquist frequency rela-
tive to the total input power of the two input tones, f1
and f2. The individual input tone levels are at
-6dBFS.
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages.
TOP VIEW
PACKAGE TYPE
*CONNECT PAD TO AGND
20 TQFN-EP
AIN1B
AIN1A
AGND
S/D
SEL
0 to V
0 to V
INPUT VOLTAGE
16
17
18
19
20
RANGE
REF,
REF,
±10V
15
1
PACKAGE CODE
+
Intermodulation Distortion
±V
±V
Package Information
(EXPOSED PAD)*
14
2
REF
REF
T2055-4
MAX1377
MAX1379
MAX1383
TQFN
/2
/2
Pin Configuration
13
3
12
Selector Guide
4
11
5
SAMPLING RATE
DOCUMENT NO.
(Msps)
10 V
9
8
7
6
1.25
1.25
1.25
21-0140
DGND
U/B
AIN2B
AIN2A
L