MAX1125 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 8-Bit, 300Msps Flash ADC

19-1100; Rev 0; 6/96
EVAALVUAAILTAIOBNLEKIT
8-Bit, 300Msps Flash ADC
_______________General Description
The MAX1125 is a monolithic, flash analog-to-digital con-
verter (ADC) capable of digitizing a 2V analog input signal
into 8-bit digital words at a typical 300Msps update rate.
For most applications, no external sample-and-hold is
required for accurate conversion due to the device's
narrow aperture time, wide bandwidth, and low input
capacitance. A single standard -5.2V power supply is
required to operate the MAX1125, with nominal 2.2W
power dissipation. A special decoding scheme reduces
metastable errors to 1LSB.
The part is packaged in a 42-pin ceramic sidebraze
that is pin compatible with the CX20116 and
CX41396D. The surface-mount 44-pin CERQUAD pack-
age allows access to additional reference ladder taps,
an overrange bit, and a data-ready output. The pin-
compatible 150Msps MAX1114 is also available.
________________________Applications
Digital Oscilloscopes
Transient Capture
Radar, EW, ECM
Direct RF Down-Conversion
Medical Electronics
Ultrasound, CAT Instrumentation
_________________Pin Configurations
TOP VIEW
DGND 1
AGND 2
VEE 3
MINV 4
CLK 5
CLK 6
VEE 7
AGND 8
AGND 9
VRBS 10
VRBF 11
MAX1125
33 AGND
32 VEE
31 LINV
30 N.C.
29 DRINV
28 N.C.
27 VEE
26 AGND
25 AGND
24 VRTS
23 VRTF
CERQUAD
____________________________Features
o Metastable Errors Reduced to 1LSB
o 10pF Input Capacitance
o 210MHz Input Bandwidth
o 300Msps Conversion Rate
o 2.2W Typical Power Dissipation
o Single -5.2V Supply
______________Ordering Information
PART
TEMP. RANGE PIN-PACKAGE INL (LSBs)
MAX1125AIDO -20°C to +85°C 42 Ceramic SB ±0.75
MAX1125BIDO -20°C to +85°C 42 Ceramic SB
±1
MAX1125AIBH -20°C to +85°C 44 CERQUAD ±0.75
MAX1125BIBH -20°C to +85°C 44 CERQUAD
±1
Functional Diagram appears at end of data sheet.
____Pin Configurations (continued)
TOP VIEW
VEE 1
N.C. 2
LINV 3
VEE 4
AGND 5
DGND 6
DO (LSB) 7
D1 8
D2 9
D3 10
D4 11
D5 12
D6 13
D7 (MSB) 14
DGND 15
AGND 16
VEE 17
MINV 18
N.C. 19
CLK 20
CLK 21
MAX1125
Ceramic SB
42 ^N.C.
41 ^VRTF
40 ^N.C.
39 ^VEE
38 ^VEE
37 ^N.C.
36 ^N.C.
35 ^AGND
34 ^VIN
33 ^AGND
32 VR2
31 AGND
30 VIN
29 AGND
28 N.C.
27 N.C.
26 VEE
25 VEE
24 N.C.
23 VRBF
22 N.C.
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