MAX1276_09 Datasheet, PDF (2/18 Pages) Maxim Integrated Products – 1.8Msps, Single-Supply, Low-Power, True- Differential, 12-Bit ADCs with Internal Reference

1.8Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
ABSOLUTE MAXIMUM RATINGS
V_DD to GND ..............................................................-0.3V to +6V
V_L to GND ................-0.3V to the lower of (V_DD + 0.3V) and +6V
Digital Inputs
to GND .................-0.3V to the lower of (V_DD + 0.3V) and +6V
Digital Output
to GND ....................-0.3V to the lower of (V_L + 0.3V) and +6V
Analog Inputs and
REF to GND..........-0.3V to the lower of (V_DD + 0.3V) and +6V
RGND to GND .......................................................-0.3V to +0.3V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T_A = +70°C)
12-Pin TQFN (derate 16.9mW/°C above +70°C) ......1349mW
Operating Temperature Range
MAX127_ ETC................................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V_DD = +5V ±5%, V_L = V_DD, f_SCLK = 28.8MHz, 50% duty cycle, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at
T_A = +25°C.)
PARAMETER
DC ACCURACY
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
SYMBOL
CONDITIONS
INL
DNL
(Notes 1, 2)
(Notes 1, 3)
MIN TYP MAX UNITS
12
-1.25
-1.0
Bits
+1.25 LSB
+1.0 LSB
±6.0 LSB
Offset-Error Temperature
Coefficient
±1
ppm/°C
Gain Error
Offset nulled
±6.0 LSB
Gain Temperature Coefficient
±2
ppm/°C
DYNAMIC SPECIFICATIONS (f_IN = 525kHz sine wave, V_IN = V_REF, unless otherwise noted.)
Signal-to-Noise Plus Distortion
SINAD (Note 1)
69
70
dB
Total Harmonic Distortion
THD Up to the 5th harmonic (Note 1)
-80
-76
dB
Spurious-Free Dynamic Range
SFDR (Note 1)
-83
-76
dB
Intermodulation Distortion
IMD fIN1 = 250kHz, fIN2 = 300kHz
-78
dB
Full-Power Bandwidth
-3dB point, small-signal method
20
MHz
Full-Linear Bandwidth
S/(N + D) > 68dB, single ended
2.0
MHz
CONVERSION RATE
Minimum Conversion Time
t_CONV (Note 4)
0.556
µs
Maximum Throughput Rate
1.8
Msps
Minimum Throughput Rate
(Note 5)
10
ksps
Track-and-Hold Acquisition Time
Aperture Delay
t_ACQ (Note 6)
104
ns
5
ns
Aperture Jitter
(Note 7)
30
ps
External Clock Frequency
ANALOG INPUTS (AIN+, AIN-)
f_SCLK
28.8 MHz
Differential Input Voltage Range
AIN+ - AIN-, MAX1276
V_IN
AIN+ - AIN-, MAX1278
0
-V_REF / 2
V_REF
V
+V_REF / 2
Absolute Input Voltage Range
0
V_DD
V
2 _______________________________________________________________________________________