AD8432: Dual-Channel Ultralow Noise Amplifier with Selectable Gain and Input Impedance |
The AD8432 is a dual-channel, low power, ultralow noise amplifier with selectable gain and active impedance matching. Each amplifier has a single-ended input, differential output, and integrated input clamps. By pin strapping the gain setting pins, four accurate gains of G = 12.04 dB, 18.06 dB, 21.58 dB, and 24.08 dB (×4, ×8, ×12, and ×16) are possible. A bandwidth of 200 MHz at G = 12.04 dB makes ...続きを見る
The AD8432 is a dual-channel, low power, ultralow noise amplifier with selectable gain and active impedance matching. Each amplifier has a single-ended input, differential output, and integrated input clamps. By pin strapping the gain setting pins, four accurate gains of G = 12.04 dB, 18.06 dB, 21.58 dB, and 24.08 dB (×4, ×8, ×12, and ×16) are possible. A bandwidth of 200 MHz at G = 12.04 dB makes this amplifier well suited for many high speed applications.
The exceptional noise performance of the AD8432 is made possible by the active impedance matching. Using a feedback network, the input impedance of the amplifiers can be adjusted to match the signal source impedance without compromising the noise performance. Impedance matching and low noise of the AD8432 allow designers to create wider dynamic range systems that are able to detect even very low level signals.
The AD8432 achieves 0.85 nV/√Hz input referred voltage noise for a gain of 12.04 dB. The AD8432’s ultralow noise, low distortion, excellent gain accuracy, and channel-to-channel matching are ideal for high performance ultrasound systems and for processing I/Q demodulator signals.
The AD8432 operates on a single supply of 5 V at 24 mA. It is available in a 4 mm × 4 mm, 24-lead LFSCP. The LFCSP features an exposed paddle that provides a low thermal resistance path to the PCB, which enables more efficient heat transfer and increases reliability. The operating temperature range is −40°C to +85°C.
Applications
| Part# | Frequency Range (MHz) | Gain (dB) | Output IP3 (dBm) | 1 dB Comp Point (dBm) | Noise Figure (dB) | Supply Current | Specs @ (MHz) | Function | Package | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|
| AD8353 | 1 to 2700 | 19.8 | 23.6 | 9.1 | 5.3 | 41mA | 900 | Gain Block | 8-Lead LFCSP | $0.49 |
| AD8354 | 1 to 2700 | 19.5 | 19 | 4.6 | 4.2 | 23mA | 900 | Gain Block | 8-Lead LFCSP | $0.49 |
| ADL5320 | 400 to 2700 | 13.7 | 42 | 25.7 | 4.4 | 104mA | 2140 | Driver | SOT-89 | $2.58 |
| ADL5321 | 2300 to 4000 | 14 | 41 | 25.7 | 4 | 90mA | 2600 | Driver | SOT-89 | $2.58 |
| ADL5322 | 700 to 1000 | 19.9 | 45.3 | 27.9 | 5 | 320mA | 900 | Driver | 8-Lead LFCSP | $3.52 |
| ADL5323 | 1700 to 2400 | 19.5 | 43.5 | 28 | 5 | 320mA | 2140 | Driver | 8-Lead LFCSP | $3.52 |
| ADL5521 | 400 to 4000 | 20.8 | 37 | 21.8 | 0.9 | 60mA | 900 | LNA | 8-Lead LFCSP | $2.18 |
| ADL5523 | 400 to 4000 | 21.5 | 34 | 21 | 0.8 | 60mA | 900 | LNA | 8-Lead LFCSP | $2.18 |
| ADL5530 | dc to 1000 | 16.8 | 37 | 21.8 | 3 | 110mA | 190 | IFA | 8-Lead LFCSP | $1.58 |
| ADL5531 | 20 to 500 | 20.9 | 41 | 20.4 | 2.5 | 100mA | 70 | IFA | 8-Lead LFCSP | $1.87 |
| ADL5534 | 20 to 500 | 21 | 40.4 | 20.4 | 2.5 | 98mA | 70 | Dual IFA | 16-Lead LFCSP | $3.00 |
| ADL5541 | 50 to 6000 | 14.7 | 39.2 | 16.3 | 3.8 | 90mA | 2000 | Gain Block | 8-Lead LFCSP | $1.67 |
| ADL5542 | 50 to 6000 | 18.7 | 39 | 18 | 3.2 | 93mA | 2000 | Gain Block | 8-Lead LFCSP | $1.67 |
| ADL5570 | 2300 to 2400 | 29 | - | 31 | - | 130mA | 2350 | Pwr Amp w/ Power Control | 16-Lead LFCSP | $5.06 |
| ADL5571 | 2500 to 2700 | 29 | - | 31 | - | 135mA | 2600 | WiMAX Power Amplifier | 16-Lead LFCSP | $5.06 |
| ADL5601 | 50 to 4000 | 15 | 43 | 19 | 3.7 | 85mA | 900 | Gain Block | 3-Lead SOT-89 | $1.75 |
| ADL5602 | 50 to 4000 | 19.5 | 42 | 19.3 | 3.3 | 89mA | 2000 | Gain Block | SOT-89 | $1.75 |
| ADL5604 | 400 to 2700 | 14.2 | 42.6 | 29 | 4.2 | 325mA | 2140 | Driver | 16-Lead LFCSP | - |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
| モデル | 製品状況 | パッケージ | ピン数 | 動作 温度範囲 |
価格* (1000 pcs.) |
Production** Availability |
RoHS互換 | PCN | サンプル・カート | 購入カート |
|---|---|---|---|---|---|---|---|---|---|---|
| AD8432-EVALZ | 製造中 | EVALUATION BOARDS | - | 工業用 | $125.00 | 11/27/2009 | Y | - | お問い合わせ | カートに入れる |
| AD8432ACPZ-R7 | 製造中 | 24 | 工業用 | $1.99 | 11/27/2009 | Y 成分表 | - | カートに入れる | カートに入れる | |
| AD8432ACPZ-RL | 製造中 | 24 | 工業用 | $1.99 | - | Y 成分表 | - | お問い合わせ | カートに入れる | |
| AD8432ACPZ-WP | 製造中 | 24 | 工業用 | $1.99 | - | Y 成分表 | - | お問い合わせ | カートに入れる |
*価格は1個当たりの米ドルで、米国内における販売価格(FOB)で表示されておりますので、予算のためにのみご使用いただけます。 また、その価格は変更されることがあります。米国以外のお客様への価格は、輸送費、各国の税金、手数料、為替レートにより決定されます。価格・納期等の詳細情報については、弊社正規販売代理店または担当営業にお問い合わせください。なお、 評価用ボードおよび評価用キットの表示価格は1個構成としての価格です。
**製品購入よりもサンプル注文の方が早く届く場合があります。入手性については、カートの中の「Availability」の欄をご覧ください。