CASCA A readout ASIC for GEM detectors 128GEM

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CASCA: A readout ASIC for GEM detectors • 128通道抗辐照GEM探测器读出芯片： • 前端放大和成形电路 • 开关电容阵列 •

CASCA: A readout ASIC for GEM detectors • 128通道抗辐照GEM探测器读出芯片： • 前端放大和成形电路 • 开关电容阵列 • 串行读出 Channel No. Dynamic range Gain Shaper Peaking time Noise Sampling freq. Buffer Latency Readout freq. Readout resolution Power consumption Process 128 0 -40 f. C 25 m. V/f. C CR-RC <50 ns <1000 e @ 10 p. F 20 MSPS 3. 2 ms 40 MHz 10 bit 2 m. W/ch 0. 18 mm CMOS TID: 20 Mrad SEU: LETth>10 Me. V cm 2 mg-1 SEL: LETth> 37 Me. V cm 2 mg-1

• 电路结构 Ain SWR SRD CSel. Out CHSel WR<0: 63> AMPRST RD<0: 63>

• 电路结构 Ain SWR SRD CSel. Out CHSel WR<0: 63> AMPRST RD<0: 63> SCA W/R Control MUX Readout Control

• 初步测试结果之线性和噪声分析 Linearity Analysis 0 -0. 1 Vout(V) -0. 2 -0. 3 -0.

• 初步测试结果之线性和噪声分析 Linearity Analysis 0 -0. 1 Vout(V) -0. 2 -0. 3 -0. 4 R 2 = 0. 9975 -0. 6 -0. 7 1. 25 1. 35 1. 45 Vin(V) 1. 55 1. 65 1. 75 Linearity(%) INL 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 1. 25 MAX INL=-4. 87% 1. 35 mean: -0. 6574 V std: 0. 0170 V 1. 45 Vin(V) 1. 55 1. 65 1. 75

Thank you!

Thank you!