Datasheet

MAX1106/MAX1107
Single-Supply, Low-Power,
Serial 8-Bit ADCs
_______________________________________________________________________________________ 9
0.5
-0.5
0 300
INTEGRAL NONLINEARITY
vs. DIGITAL CODE
-0.1
0
-0.3
-0.4
-0.2
0.4
0.3
MAX1106/07-13
DIGITAL CODE
INL (LSB)
50 100 150 200 250
0.1
0.2
20
-100
014
FFT PLOT
-60
-80
0
MAX1106/07-14
FREQUENCY (kHz)
AMPLITUDE (dB)
24681012
-20
-40
f
IN+
= 10.34kHz, 2Vp-p
f
SAMPLE
= 25088Hz
21.5
18.5
06
CONVERSION TIME vs. SUPPLY VOLTAGE
19.5
19.0
21.0
MAX1106/07-15
SUPPLY VOLTAGE (V)
CONVERSION TIME (µs)
12345
20.5
20.0
Typical Operating Characteristics (continued)
(V
DD
= +3.0V (MAX1106), V
DD
= +5.0V (MAX1107); f
SCLK
= 2MHz; 25ksps conversion rate; external reference; 1µF at REFOUT;
T
A
= +25°C; unless otherwise noted.)
Pin Description
Positive Analog Input. Sampled. Input range from GND to V
DD
.IN+2
Ground.GND4
Negative Analog Input. Input range from GND to V
DD
.IN-3
Reference Voltage Input. Reference voltage for analog-to-digital conversion. Connect REFOUT to REFIN
for internal reference. Input range from 1V to V
DD
.
REFIN6
Active-Low Shutdown. Connect to V
DD
for normal operation.
SHDN
8
Conversion Start Input. Toggle CONVST high for 1µs minimum and then low to start internal conversion.
Data is not clocked out unless CONVST is low.
CONVST7
Internal Reference Output. Bypass with 1µF to ground. 2.048V for MAX1106, 4.096V for MAX1107.REFOUT5
Serial Data Output. Data is clocked out on the falling edge of SCLK. DOUT is high impedance in shutdown
or after all data is clocked out.
DOUT9
PIN
Positive Supply VoltageV
DD
1
FUNCTIONNAME
25
15
-40 100
CONVERSION TIME vs. TEMPERATURE
18
17
16
24
23
MAX1106/07-16
TEMPERAT
U
RE
(
°
C)
CONVERSION TIME (µs)
-20 0 20 40 60 80
22
21
20
19
V
DD
= 3V
V
DD
= 5V
1.0010
0.9980
-40 100
NORMALIZED REFERENCE VOLTAGE
vs. TEMPERATURE
0.9990
0.9985
1.0005
MAX1106/07-17
TEMPERATURE (°C)
NORMALIZED REFERENCE VOLTAGE
-20 0 20 40 60 80
1.0000
0.9995
Serial Clock Input. Clocks data out of serial interface.SCLK10