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參數資料
| 型號： | MAX4220EEE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 3/16頁 |
| 文件大小： | 0K |
| 描述： | IC OP AMP R-R W/ENABLE 16QSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 放大器類型： | 電壓反饋 |
| 電路數： | 4 |
| 輸出類型： | 滿擺幅 |
| 轉換速率： | 600 V/µs |
| -3db帶寬： | 200MHz |
| 電流 - 輸入偏壓： | 5.4µA |
| 電壓 - 輸入偏移： | 4000µV |
| 電流 - 電源： | 5.5mA |
| 電流 - 輸出 / 通道： | 120mA |
| 電壓 - 電源，單路/雙路(±)： | 3.15 V ~ 11 V，±1.575 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-QSOP |
| 包裝： | 帶卷 (TR) |
Maxim recommends using microstrip and stripline tech-
niques to obtain full bandwidth. To ensure that the PC
board does not degrade the amplifier’s performance,
design it for a frequency greater than 1GHz. Pay care-
ful attention to inputs and outputs to avoid large para-
sitic capacitance. Whether or not you use a constant-
impedance board, observe the following guidelines
when designing the board:
Don’t use wire-wrap boards because they are too
inductive.
Don’t use IC sockets because they increase parasitic
capacitance and inductance.
Use surface-mount instead of through-hole compo-
nents for better high-frequency performance.
Use a PC board with at least two layers; it should be
as free from voids as possible.
Keep signal lines as short and as straight as possi-
ble. Do not make 90° turns; round all corners.
Rail-to-Rail Outputs,
Ground-Sensing Input
The input common-mode range extends from
(VEE - 200mV) to (VCC - 2.25V) with excellent common-
mode rejection. Beyond this range, the amplifier output
is a nonlinear function of the input, but does not under-
go phase reversal or latchup.
The output swings to within 50mV of either power-
supply rail with a 10k
load. The input ground-sensing
and the rail-to-rail output substantially increase the
dynamic range. With a symmetric input in a single 5V
application, the input can swing 2.95VP-P, and the out-
put can swing 4.9VP-P with minimal distortion.
Enable Input and Disabled Output
The enable feature (EN_) allows the amplifier to be
placed in a low-power, high-output-impedance state.
Typically, the EN_ logic low input current (IIL) is small.
However, as the EN voltage (VIL) approaches the nega-
tive supply rail, IIL increases (Figure 2). A single resis-
tor connected as shown in Figure 3 prevents the rise in
the logic-low input current. This resistor provides a
feedback mechanism that increases VIL as the logic
input is brought to VEE. Figure 4 shows the resulting
input current (IIL).
When the MAX4213/MAX4218 are disabled, the amplifi-
er’s output impedance is 35k
. This high resistance
and the low 2pF output capacitance make these parts
ideal in RF/video multiplexer or switch applications. For
larger arrays, pay careful attention to capacitive load-
ing. See the Output Capacitive Loading and Stability
section for more information.
MAX4212/MAX4213/MAX4216/MAX4218/MAX4220
Miniature, 300MHz, Single-Supply,
Rail-to-Rail Op Amps with Enable
______________________________________________________________________________________
11
Table 1. Recommended Component Values
Note: RL = RO + RTO; RTIN and RTO are calculated for 50
applications. For 75 systems, RTO = 75; calculate RTIN from the
following equation:
R
=
75
1-
75
R
TIN
G
-25
+25
-10
+10
-5
+5
-2
+2
-1
+1
49.9
10
∞
0
50
1200
GAIN (V/V)
49.9
6
49.9
—
20
500
49.9
25
∞
0
50
500
49.9
11
49.9
—
56
500
49.9
33
100
0
100
500
49.9
25
49.9
—
124
500
49.9
60
62
0
250
500
49.9
105
49.9
—
500
49.9
RTO (
)
90
300
Small-Signal -3dB Bandwidth (MHz)
56
49.9
RTIN (
)
0
—
RS (
)
COMPONENT
500
∞
RG (
)
500
24
RF (
)
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