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8
Bit CPU
- Static
& Dynamic Logic Design
- State
Machines
-
On chip ROM
- Tristate
Buffers, Registers, Latches
- Bidirectional
buses, etc
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Gas
Microstrip Detector ASIC
-
2 micron CMOS, Orbit Semi
- 32
channel of Front End Electronics
- Noise
: 1500 electrons measured at Cd = 47 pf
- Power
: Less than 175 micro watt per channel
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POEMS
ASIC
- Technology
: HP, 0.5 micron CMOS
- 32
channels of front end electronics for Silicon Strip
Detector
- 50
micron pitch for detector connection
- Each
channel comprises of a preamp, a shaping amp, a
peak hold, a discriminator and associated digital
logic.
- multiplexed
Shaping amp output
- multiplexed
Peak Hold output
- Less
than 200 micro watt per channel
- Noise
: 800 electrons measured for Cd = 10pf
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GLAST
Calorimeter ASIC
- 1.2
micron CMOS, Orbit ( SuperTex Semicounductor)
- 2
gain ranges to pulse height analyze signal in the
range 2 Mev to
- 100
Gev for the Cesium Iodide Calorimeter
- High
Gain Preamp : 2 - 800 Mev range
- Noise
: 2000 electrons for Cd = 75 Pf - measured
- Low
Gain Preamp : 40Mev - 100 Gev
- linearity
of gain channels : 0.5 %
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8
Channel ASIC
-
Mixed signal design
- 1.5
milli watts per channel
- Preamp,
Shaping amp, discriminator and digital logic per channel
- 0.35
Pf feedback capacitance
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SWIFT
ASIC
-
HP 0.5um CMOS
- 32
channel, front end electronics ASIC
- Multiplexed
Shaping amp output
- multiplexed
Peak Hold output
- Less
than 200 micro watt per channel
- Noise
: 500 electrons measured for Cd = 5pf, 150 elec at
0 Pf.
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