MAX1192 Maxim, MAX1192 Datasheet - Page 14

• Manufacturer Part Number: MAX1192
• Description: Ultra-Low-Power / 22Msps / Dual 8-Bit ADC
• Manufacturer: Maxim

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
14
(V
22.005678MHz at 50% duty cycle, T
DD
3, 5, 10
8, 9, 28
PIN
______________________________________________________________________________________
11
12
13
14
15
16
17
18
19
20
21
22
= 3.0V, OV
1
2
4
6
7
3.0
2.5
2.0
1.5
1.0
0.5
0
0
DIGITAL SUPPLY CURRENT
DD
OGND
NAME
OV
2
INA+
GND
INB+
INA-
CLK
INB-
V
PD1
A/B
vs. INPUT FREQUENCY
D7
D6
D5
D4
D3
D2
D1
D0
= 1.8V, V
DD
ANALOG SUPPLY CURRENT
DD
SUPPLY CURRENT
4
f
IN
(MHz)
6
REFIN
Channel A Negative Analog Input. For single-ended operation, connect INA- to COM.
Channel A Positive Analog Input. For single-ended operation, connect signal source to INA+.
Analog Ground. Connect all GND pins together.
Converter Clock Input
Channel B Positive Analog Input. For single-ended operation, connect signal source to INB+.
Channel B Negative Analog Input. For single-ended operation, connect INB- to COM.
Converter Power Input. Connect to a 2.7V to 3.6V power supply. Bypass V
combination of a 2.2µF capacitor in parallel with a 0.1µF capacitor.
Output Driver Ground
Output Driver Power Input. Connect to a 1.8V to V
combination of a 2.2µF capacitor in parallel with a 0.1µF capacitor.
Tri-State Digital Output. D7 is the most significant bit (MSB).
Tri-State Digital Output
Tri-State Digital Output
Tri-State Digital Output
Channel Data Indicator. This digital output indicates channel A data (A/B = 1) or channel B data
(A/B = 0) is present on the output.
Tri-State Digital Output
Tri-State Digital Output
Tri-State Digital Output
Tri-State Digital Output. D0 is the least significant bit (LSB).
Power-Down Digital Input 1. See Table 3.
8
A
= V
= +25°C, unless otherwise noted.)
MAX1192 toc33
DD
10
(internal reference), C
12
Typical Operating Characteristics (continued)
9.8
9.6
9.4
9.2
9.0
8.8
8.6
L
≈ 10pF at digital outputs, differential input at -0.5dB FS, f
A: ANALOG SUPPLY CURRENT (I
B: ANALOG SUPPLY CURRENT (I
C: DIGITAL SUPPLY CURRENT (I
REFERENCE MODES
FUNCTION
25
20
15
10
5
0
DD
0
power supply. Bypass OV
f
IN
= 5.5112345MHz
10
vs. SAMPLING RATE
SUPPLY CURRENT
20
f
ODD
DD
DD
CLK
) - INTERNAL AND BUFFERED EXTERNAL
) - UNBUFFERED EXTERNAL REFERENCE MODE
30
) - ALL REFERENCE MODES
(MHz)
A
C
40
DD
Pin Description
B
to GND with a
50
DD
to GND with a
60
CLK
=