Instruction Manual

MAX1198
Dual, 8-Bit, 100Msps, 3.3V, Low-Power ADC
with Internal Reference and Parallel Outputs
10 ______________________________________________________________________________________
Pin Description
PIN NAME FUNCTION
1 COM Common-Mode Voltage I/O. Bypass to GND with a ≥0.1µF capacitor.
2, 6, 11, 14, 15 V
DD
Analog Supply Voltage. Bypass to GND with a capacitor combination of 2.2µF in parallel with
0.1µF.
3, 7, 10, 13, 16 GND Analog Ground
4 INA+ Channel A Positive Analog Input. For single-ended operation connect signal source to INA+.
5 INA- Channel A Negative Analog Input. For single-ended operation connect INA- to COM.
8 INB- Channel B Negative Analog Input. For single-ended operation connect INB- to COM.
9 INB+ Channel B Positive Analog Input. For single-ended operation connect signal source to INB+.
12 CLK Converter Clock Input
17 T/B
T/B Selects the ADC Digital Output Format
High: Two’s complement
Low: Straight offset binary
18 SLEEP
Sleep Mode Input
High: Disables both quantizers, but leaves the reference bias circuit active
Low: Normal operation
19 PD
Active-High Power-Down Input
High: Power-down mode
Low: Normal operation
20 OE
Active-Low Output Enable Input
High: Digital outputs disabled
Low: Digital outputs enabled
21 D7B Three-State Digital Output, Bit 7 (MSB), Channel B
22 D6B Three-State Digital Output, Bit 6, Channel B
23 D5B Three-State Digital Output, Bit 5, Channel B
24 D4B Three-State Digital Output, Bit 4, Channel B
25 D3B Three-State Digital Output, Bit 3, Channel B
26 D2B Three-State Digital Output, Bit 2, Channel B
27 D1B Three-State Digital Output, Bit 1, Channel B
28 D0B Three-State Digital Output, Bit 0, Channel B
29, 30, 35, 36 N.C. No Connection
31, 34 OGND Output Driver Ground
32, 33 OV
DD
Output Driver Supply Voltage. Bypass to OGND with a capacitor combination of 2.2µF in parallel
with 0.1µF.
37 D0A Three-State Digital Output, Bit 0, Channel A
38 D1A Three-State Digital Output, Bit 1, Channel A
39 D2A Three-State Digital Output, Bit 2, Channel A
40 D3A Three-State Digital Output, Bit 3, Channel A
41 D4A Three-State Digital Output, Bit 4, Channel A