Datasheet

MAX1192
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
14 ______________________________________________________________________________________
SUPPLY CURRENT
vs. INPUT FREQUENCY
MAX1192 toc33
f
IN
(MHz)
DIGITAL SUPPLY CURRENT (mA)
108642
0.5
1.0
1.5
2.0
2.5
3.0
0
ANALOG SUPPLY CURRENT (mA)
8.8
9.0
9.2
9.4
9.6
9.8
8.6
012
DIGITAL SUPPLY CURRENT
ANALOG SUPPLY CURRENT
SUPPLY CURRENT
vs. SAMPLING RATE
MAX1192 toc34
f
CLK
(MHz)
SUPPLY CURRENT (mA)
5030 402010
A: ANALOG SUPPLY CURRENT (I
DD
) - INTERNAL AND BUFFERED EXTERNAL
REFERENCE MODES
B: ANALOG SUPPLY CURRENT (I
DD
) - UNBUFFERED EXTERNAL REFERENCE MODE
C: DIGITAL SUPPLY CURRENT (I
ODD
) - ALL REFERENCE MODES
5
10
15
20
25
0
060
A
B
C
f
IN
= 5.5112345MHz
Pin Description
PIN NAME FUNCTION
1 INA- Channel A Negative Analog Input. For single-ended operation, connect INA- to COM.
2 INA+ Channel A Positive Analog Input. For single-ended operation, connect signal source to INA+.
3, 5, 10 GND Analog Ground. Connect all GND pins together.
4 CLK Converter Clock Input
6 INB+ Channel B Positive Analog Input. For single-ended operation, connect signal source to INB+.
7 INB- Channel B Negative Analog Input. For single-ended operation, connect INB- to COM.
8, 9, 28 V
DD
Converter Power Input. Connect to a 2.7V to 3.6V power supply. Bypass V
DD
to GND with a
combination of a 2.2µF capacitor in parallel with a 0.1µF capacitor.
11 OGND Output Driver Ground
12 OV
DD
Output Driver Power Input. Connect to a 1.8V to V
DD
power supply. Bypass OV
DD
to GND with a
combination of a 2.2µF capacitor in parallel with a 0.1µF capacitor.
13 D7 Tri-State Digital Output. D7 is the most significant bit (MSB).
14 D6 Tri-State Digital Output
15 D5 Tri-State Digital Output
16 D4 Tri-State Digital Output
17 A/B
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.
18 D3 Tri-State Digital Output
19 D2 Tri-State Digital Output
20 D1 Tri-State Digital Output
21 D0 Tri-State Digital Output. D0 is the least significant bit (LSB).
22 PD1 Power-Down Digital Input 1. See Table 3.
Typical Operating Characteristics (continued)
(V
DD
= 3.0V, OV
DD
= 1.8V, V
REFIN
= V
DD
(internal reference), C
L
≈ 10pF at digital outputs, differential input at -0.5dB FS, f
CLK
=
22.005678MHz at 50% duty cycle, T
A
= +25°C, unless otherwise noted.)