MAX1191ETI+ Maxim Integrated Products, MAX1191ETI+ Datasheet - Page 13

• Manufacturer Part Number: MAX1191ETI+
• Description: IC ADC 8BIT 7.5MSPS DUAL 28-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1191ETI+

• Number Of Bits: 8
• Sampling Rate (per Second): 7.5M
• Data Interface: Parallel
• Number Of Converters: 2
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
7.500567MHz at 50% duty cycle, T
DD
3, 5, 10
8, 9, 28
PIN
= 3.0V, OV
11
12
13
14
15
16
17
18
19
20
21
22
1
2
4
6
7
0.9
0.8
0.7
0.6
0.5
0.4
Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC
DD
OGND
0
NAME
OV
INA+
INB+
GND
INA-
INB-
CLK
V
PD1
= 1.8V, V
A/B
______________________________________________________________________________________
D7
D6
D5
D4
D3
D2
D1
D0
DD
DIGITAL SUPPLY CURRENT
DD
ANALOG SUPPLY CURRENT
vs. INPUT FREQUENCY
1
SUPPLY CURRENT
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.
f
IN
A
(MHz)
2
= V
= +25°C, unless otherwise noted.)
DD
(internal reference), C
3
MAX1191 toc34
Typical Operating Characteristics (continued)
4
4.3
4.2
4.1
4.0
3.9
3.8
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
FUNCTION
REFERENCE MODES
DD
7
6
5
4
3
2
1
0
0
power supply. Bypass OV
f
IN
= 2.017059MHz
vs. SAMPLING RATE
5
SUPPLY CURRENT
A
f
ODD
DD
DD
CLK
) - INTERNAL AND BUFFERED EXTERNAL
) - UNBUFFERED EXTERNAL REFERENCE MODE
) - ALL REFERENCE MODES
10
(MHz)
C
DD
Pin Description
15
B
to GND with a
DD
to GND with a
20
CLK
13
=