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| MAX1191 Datasheet, PDF (2/27 Pages) Maxim Integrated Products – Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC | |||
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Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC
ABSOLUTE MAXIMUM RATINGS
VDD, OVDD to GND ...............................................-0.3V to +3.6V
OGND to GND.......................................................-0.3V to +0.3V
INA+, INA-, INB+, INB- to GND .................-0.3V to (VDD + 0.3V)
CLK, REFIN, REFP, REFN, COM to GND ...-0.3V to (VDD + 0.3V)
PD0, PD1 to OGND .................................-0.3V to (OVDD + 0.3V)
Digital Outputs to OGND .........................-0.3V to (OVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
28-Pin Thin QFN (derated 20.8mW/°C above +70°C) ...1667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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
(VDD = 3.0V, OVDD = 1.8V, VREFIN = VDD (internal reference), CL â 10pF at digital outputs, fCLK = 7.5MHz, CREFP = CREFN = CCOM
= 0.33µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
DC ACCURACY
Resolution
Integral Nonlinearity
INL
Differential Nonlinearity
DNL No missing codes over temperature
Offset Error
â¥+25°C
<+25°C
Gain Error
Excludes REFP - REFN error
DC Gain Matching
Gain Temperature Coefficient
Power-Supply Rejection
ANALOG INPUT
Offset (VDD ±5%)
Gain (VDD ±5%)
Differential Input Voltage Range VDIFF Differential or single-ended inputs
Common-Mode Input Voltage
Range
VCOM
Input Resistance
Input Capacitance
CONVERSION RATE
RIN Switched capacitor load
CIN
Maximum Clock Frequency
Data Latency
fCLK
Channel A
Channel B
DYNAMIC CHARACTERISTICS (differential inputs, 4096 point FFT)
Signal-to-Noise Ratio
(Note 2)
Signal-to-Noise and Distortion
(Note 2)
SNR
SINAD
fIN = 1.875MHz
fIN = 3.75MHz
fIN = 1.875MHz
fIN = 3.75
MIN
TYP
MAX UNITS
8
Bits
±0.15 ±1.00 LSB
±0.13 ±1.00 LSB
±4
%FS
±6
±2
%FS
±0.01
±0.2
dB
±30
ppm/°C
±0.2
LSB
±0.05
±0.512
V
VDD / 2
V
720
kâ¦
5
pF
7.5
5.0
5.5
MHz
Clock
cycles
47
48.7
dB
48.6
47
48.6
dB
48.5
2 _______________________________________________________________________________________
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