參數(shù)資料
型號(hào): MAX19192ETI+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 8/22頁(yè)
文件大?。?/td> 0K
描述: IC ADC 8BIT DUAL 10MSPS 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): 10M
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 1.67W
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,單極;2 個(gè)差分,單極
MAX19192
Ultra-Low-Power, 10Msps, Dual 8-Bit ADC
16
______________________________________________________________________________________
In idle mode, the pipeline ADCs, reference, and clock
distribution circuits are powered, but the outputs are
forced to three-state. The wake-up time from idle mode
is dominated by the 5ns required for the output drivers
to start from three-state. When the outputs transition
from three-state to on, the last converted word is
placed on the digital outputs.
In the normal operating mode, all sections of the
MAX19192 are powered.
Applications Information
The circuit of Figure 7 operates from a single 3V supply
and accommodates a wide 0.5V to 1.5V input common-
mode voltage range for the analog interface between
an RF quadrature demodulator (differential, DC-cou-
pled signal source) and a high-speed ADC.
Furthermore, the circuit provides required SINAD and
SFDR to demodulate a wideband (BW = 3.84MHz),
QAM-16 communication link. RISO isolates the op amp
output from the ADC capacitive input to prevent ringing
and oscillation. CIN filters high-frequency noise.
MAX19192
INA+
COM
INA-
AV = 6V/V
VCOM = VDD/2
VCOM = 0.5V TO 1.5V
VSIG =
±85mVP-P
RISO
22
Ω
RISO
22
Ω
R11
600
Ω
R9
600
Ω
R2
300
Ω
OPERATIONAL AMPLIFIERS
CHOOSE EITHER OF THE MAX4452/MAX4453/MAX4454 SINGLE/
DUAL/QUAD 3V, 200MHz OP AMPS FOR USE WITH THIS CIRCUIT.
CONNECT THE POSITIVE SUPPLY RAIL (VCC) TO 3V. CONNECT THE
NEGATIVE SUPPLY RAIL (VEE) TO GROUND. DECOUPLE VCC WITH A
0.1
μF CAPACITOR TO GROUND.
RESISTOR NETWORKS
RESISTOR NETWORKS ENSURE PROPER THERMAL AND TOLERANCE
MATCHING. FOR R1, R2, AND R3 USE A NETWORK SUCH AS VISHAY'S
3R MODEL NUMBER 300192. FOR R4–R11, USE A NETWORK SUCH AS
VISHAY'S 4R MODEL NUMBER 300197.
R10
600
Ω
R8
600
Ω
R5
600
Ω
R4
600
Ω
R7
600
Ω
R6
600
Ω
CIN
5pF
CIN
5pF
R1
600
Ω
R3
600
Ω
Figure 7. DC-Coupled Differential Input Driver
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