MAX1151 Datasheet, PDF (6/8 Pages) Maxim Integrated Products – 8-Bit, 750Msps Flash ADC

8-Bit, 750Msps Flash ADC
V_IN
50Ω
R
U1
R
-2.0V
REFERENCE
U1
CLOCK IN
U2
VIN
VIN
VRTF
22Ω
**
VRTS
VRM
MAX1151
1N2907
22Ω
**
-5.2V
VRBS
VRBF
NDRB (NOT DATA READY)
DRB (DATA READY)
D8B (OVR)
D7B (MSB)
D6B
D5B
D4B
D3B
D2B
D1B
D0B (LSB)
NDRA (NOT DATA READY)
DRA (DATA READY)
D8A (OVR)
D7A (MSB)
D6A
D5A
D4A
D3A
D2A
D1A
D0A (LSB)
CLK
50Ω 50Ω
NCLK
V_EE
-2V
PULL-DOWN
(ANALOG)
-5.2V
***********
AGND
***********
DGND
0.1µF
-2.0V
PULL-DOWN
(DIGITAL)
L
**
L = Ferrite bead, DIGIKEY P98208BK or equivalent
* = 50Ω resistor
* * = 10µF tantalum capacitor and 0.1µF chip capacitor
U1 = OP220 or equivalent with low offset/noise
R = 1kΩ; 0.1% matched
= AGND
= DGND
U2 = Motorola ECLinPS Lite, MC10EL16, differential receiver
with 250ps (typ) propagation delay
Figure 1. Typical Interface Circuit
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