- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5551 > ISL55210IRTZ (Intersil)IC OPAMP DIFF 2200MHZ LP 16TQFN PDF資料下載
參數(shù)資料
| 型號(hào)： | ISL55210IRTZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP DIFF 2200MHZ LP 16TQFN |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 輸出類型： | 差分 |
| 轉(zhuǎn)換速率： | 5600 V/µs |
| 增益帶寬積： | 4GHz |
| -3db帶寬： | 2.2GHz |
| 電流 - 輸入偏壓： | 50µA |
| 電壓 - 輸入偏移： | 100µV |
| 電流 - 電源： | 35mA |
| 電流 - 輸出 / 通道： | 45mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 4.2 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-TQFN（3x3） |
| 包裝： | 散裝 |
ISL55210
10
FN7811.2
June 6, 2013
Applications
Basic Operation
The ISL55210 is a very wideband, voltage feedback based,
differential amplifier including an output common mode control
loop and optional power shutdown feature. Intended for very low
distortion differential signal driving, this non-unity gain stable
device also delivers extremely low input noise terms of
0.85nV/√Hz and 5pA/√Hz. Most applications are intended for AC
coupled I/O using a single 3.3V supply. It will operate over a
single supply range of 3.0V to 4.2V. Where DC coupled operation
is desired, using split power supplies will allow the ISL55210 I/O
common mode range limits to be observed while giving either a
differential I/O or single to differential configuration.
Most applications behave as a differential inverting op amp design.
There is, therefore, an input gain resistor on each side of the inputs
that must be driven. To retain overall low output noise, these
resistors are normally of low value. The device can be powered down
to <400A supply current using the optional disable pin. To operate
normally, this pin should be asserted high using a simple logic gate
to +VS or tied high through a 10k resistor to +VS. When disabled,
the power dissipation drops to <1mW but, due to the inverting op
amp type architecture, the input signal will feed forward through the
external resistors giving limited isolation.
Application and Characterization Circuits
The circuit of Figure 28 forms a starting point for many of the
characterization curves for the ISL55210. Since most lab sources
and measurement devices are single-ended, this circuit converts
to differential at the input through a wideband transformer and
would also be a typical application circuit coming from a single
ended source. Assuming the source is a 50 impedance, the RG
resistors are set to provide both the input termination and the
gain. Since the inverting summing nodes act as virtual ground
points for AC signal analysis, the total termination impedance
across the input transformer secondary will be 2 * RG. Setting
this equal to n2*RS will give a matched input impedance inside
the bandwidth of the transformer (where "n" is the turns ratio).
The amplifier gain is then set by adjusting the feedback resistors
values. Since the ISL55210 is a VFA design, increasing the
feedback resistor to get higher gain does not directly reduce the
bandwidth as it would with a CFA based design. This gives
increased flexibility in the input turns ratio and overall gain
setting (while holding a matched input impedance) over
alternate solutions.
Working with a transformer coupled input as shown in Figure 28,
or with two DC blocking caps from a differential source, means
the output common mode voltage set by either the default
internal VCM setting, or a voltage applied to the VCM control pin,
will also appear as the input common mode voltage. This
provides a very easy way to control the ISL55210 I/O common
mode operating voltages for an AC coupled signal path. The
internal common mode loop holds the output pins to VCM and,
since there is no DC path for an ICM current back towards the
common mode voltage. It is useful, for this reason, to leave any
input transformer secondary centertap unconnected. The
internally set VCM voltage is referenced from the negative supply
pin. With a single 3.3V supply, it is very close to 1.2V but will
change with total supply voltage across the device as shown in
Figure 26.
FIGURE 26. DEFAULT VCM AND MAX VOPP vs SUPPLY VOLTAGE
FIGURE 27. SUPPLY CURRENT vs SUPPLY VOLTAGE
Typical Performance Curves V
S+ = 3.3V, TA ≈ +25°C, unless otherwise noted. (Continued)
1
2
3
4
5
6
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5
SUPPLY VOLTAGE (V)
INTERNALLY SET VCM
MAXIMUM DIFFERENTIAL VP-P
OUTPUT USING DEFAULT VCM
OUTPUT
DEFAULT
V
CM
AND
MAX
DIFFERENTIAL
V
OP
P
(V)
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5
SINGLE SUPPLY VOLTAGE (V)
TA = +25°C
TA = -40°C
TA = +85°C
SUPPLY
C
URREN
T
(m
A)
50
1:1.4
1F
85
ISL55210
+3.3V
+
-
VI
50
35
ADT2-1T
0.1uF
200
VCM
200
33mA 110mW
1:1
ADT1-1WT
50
1F
VM
VO
RG
RF
10k
PD
200
LOAD
85
1F
FIGURE 28. TEST CIRCUIT #1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CA5420AMZ96 | IC OPAMP 0.5MHZ 8-SOIC |
| 208483024003025 | CONNECTOR RECEPT 24POS STR |
| EL2480CSZ | IC OP AMP QUAD LP 250MHZ 14-SOIC |
| CRCW06035R11FKEA | RES 5.11 OHM 1/10W 1% 0603 SMD |
| IPL1-105-01-S-D-RA-K | CONN SHROUDED PWR HEADER 10POS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL55210IRTZ-EVALZ | 制造商:Intersil Corporation 功能描述:ISL55210IRTZ-EVALZ (PB-FREE ) EVALUATION BOARD - Bulk 制造商:Intersil Corporation 功能描述:BOARD EVAL FOR ISL55210 |
| ISL55210IRTZ-T7 | 功能描述:IC OPAMP DIFF 2200MHZ LP 16TQFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:75 系列:MicroAmplifier™ 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.03 V/µs 增益帶寬積:100kHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:60µV 電流 - 電源:20µA 電流 - 輸出 / 通道:5mA 電壓 - 電源，單路/雙路(±):2.3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:管件 |
| ISL55210IRTZ-T7A | 功能描述:差分放大器 ISL55210IRTZ WIDEBAN ULTRA-HI DYNAMIC RA RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| ISL55210IRTZ-T7S2705 | 制造商:Intersil Corporation 功能描述:CISCO, ISL55210IRTZ-T W/CONTAINER LABELING - Rail/Tube |
| ISL55211 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Wideband, Low Noise, Low Distortion, Fixed Gain, Differential Amplifier |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。