Rainbow Electronics MAX1273 - Manual (Page 7)

FFT PLOT
MAX1272/73 toc11
FREQUENCY (kHz)
AMPLITUDE (dB)
40 30 20 10
0
-160
0 50
-140
-120
-100
-80
-60
-40
-20
f AIN = 10kHz
SUPPLY CURRENT
vs. CONVERSION RATE
MAX1272/73 toc12
CONVERSION RATE (ksps)
SUPPLY CURRENT (
µ
A)
10 1
500
1000
1500
2000
2500
0
0.1 100
V AIN = 0
STANDBY POWER-DOWN MODE
BETWEEN CONVERSIONS
EXTERNAL REFERENCE
INTERNAL REFERENCE
MAX1272/MAX1273
Fault-Protected, 12-Bit ADCs
with Software-Selectable Input Range
_______________________________________________________________________________________ 7
OFFSET ERROR vs. TEMPERATURE
MAX1272/73 toc13
TEMPERATURE ( °C)
OFFSET ERROR (LSB)
60 35 10 -15
-8
-6
-4
-2
0
2
4
6
8
10
-10
-40 85
RNG = 1, BIP = 1
RNG = 1, BIP = 0
RNG = 0, BIP = 1
RNG = 0, BIP = 0
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1272/73 toc14
SUPPLY VOLTAGE (V)
OFFSET ERROR (LSB)
5.25 5.00 4.75
-8
-6
-4
-2
0
2
4
6
8
10
-10
4.50 5.50
RNG = 0, BIP = 1
RNG = 1, BIP = 1
RNG = 0, BIP = 0
RNG = 1, BIP = 0
GAIN ERROR vs. TEMPERATURE
MAX1272/73 toc15
TEMPERATURE ( °C)
GAIN ERROR (LSB)
60 35 10 -15
-8
-6
-4
-2
0
2
4
6
8
10
-10
-40 85
RNG = 1, BIP = 0
RNG = 1, BIP = 1
RNG = 0, BIP = 1
RNG = 0, BIP = 0
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1272/73 toc16
SUPPLY VOLTAGE (V)
GAIN ERROR (LSB)
5.25 5.00 4.75
-8
-6
-4
-2
0
2
4
6
8
10
-10
4.50 5.50
RNG = 0, BIP = 1
RNG = 0, BIP = 0
RNG = 1, BIP = 0
RNG = 1, BIP = 1
Typical Operating Characteristics (continued)
(Typical operating circuit, BIP = RNG = 1, V DD = 5V, external reference mode, V REF = 4.096V, C REF = 1.0µF, f SCLK = 1.4MHz,
50% duty cycle, 87ksps, T
A
= +25°C, unless otherwise noted.)