參數(shù)資料
型號: MAX1193ETI+T
廠商: Maxim Integrated Products
文件頁數(shù): 6/26頁
文件大?。?/td> 0K
描述: IC ADC 8BIT 45MSPS DL 28-TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
位數(shù): 8
采樣率(每秒): 45M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 2
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 28-TQFN-EP(5x5)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個(gè)單端,雙極;2 個(gè)差分,雙極
MAX1193
Input Track-and-Hold (T/H) Circuits
Figure 3 displays a simplified functional diagram of the
input T/H circuits. In track mode, switches S1, S2a,
S2b, S4a, S4b, S5a, and S5b are closed. The fully dif-
ferential circuits sample the input signals onto the two
capacitors (C2a and C2b) through switches S4a and
S4b. S2a and S2b set the common mode for the ampli-
fier input, and open simultaneously with S1, sampling
the input waveform. Switches S4a, S4b, S5a, and S5b
are then opened before switches S3a and S3b connect
capacitors C1a and C1b to the output of the amplifier
and switch S4c is closed. The resulting differential volt-
ages are held on capacitors C2a and C2b. The ampli-
fiers charge capacitors C1a and C1b to the same
Ultra-Low-Power, 45Msps, Dual 8-Bit ADC
14
______________________________________________________________________________________
S3b
S3a
COM
S5b
S5a
INB+
INB-
S1
OUT
C2a
C2b
S4c
S4a
S4b
C1b
C1a
INTERNAL
BIAS
INTERNAL
BIAS
COM
HOLD
CLK
INTERNAL
NONOVERLAPPING
CLOCK SIGNALS
TRACK
S2a
S2b
S3b
S3a
COM
S5b
S5a
INA+
INA-
S1
OUT
C2a
C2b
S4c
S4a
S4b
C1b
C1a
INTERNAL
BIAS
INTERNAL
BIAS
COM
S2a
S2b
MAX1193
Figure 3. Internal T/H Circuits
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