Datasheet MAX6125, MAX6141, MAX6145, MAX6150, MAX6160 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | SOT23, Low-Cost, Low-Dropout, 3-Terminal Voltage References |
| Seiten / Seite | 12 / 8 — Pin Description. PIN. NAME. FUNCTION. SOT23-3. SOT143. MAX6160. … |
| Dateiformat / Größe | PDF / 2.2 Mb |
| Dokumentensprache | Englisch |
Pin Description. PIN. NAME. FUNCTION. SOT23-3. SOT143. MAX6160. Applications Information. Input Bypassing
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MAX6125/MAX6141/ SOT23, Low-Cost, Low-Dropout, MAX6145/MAX6150/MAX6160 3-Terminal Voltage References
Pin Description PIN NAME FUNCTION SO SOT23-3 SOT143
1 2 4 OUT Reference Output 2, 3, 5*, 6, 7 — — N.C. No Connection. Not internally connected. 4 3 1 GND Ground 5** — 2 ADJ Adjustable output voltage feedback input. Connect a resistor divider between OUT, ADJ, and GND (Figure 1). 8 1 3 IN Input Voltage *Except MAX6160. **MAX6160 only. ±5% of this calculated value (nearest standard value plus VIN specified resistor tolerance) to optimize the output voltage temperature coefficient. Using R1 = 215kΩ: IN OUT V 215kΩ OUT R2 = ≈ 208kΩ 2.5V
MAX6160
1 − R1 VOUT 1.23V R1 = 1.06 x 105 ( VADJ ) Ω ADJ R2 = R1 which is also the nearest 0.1% resistor value. VOUT R2 ( - 1) Choose R2 according to the following equation: GND VADJ VADJ = 1.23V R2 = R1 / (VOUT / VADJ - 1) For example, a 2.5V output requires R1 = (1.06 x 105) (2.5V / 1.23V) ≈ 215kΩ, which is the nearest standard- Figure 1. MAX6160 Adjustable Output Circuit value 0.1% resistor.
Applications Information Input Bypassing
For the best line-transient performance, decouple the
Setting the MAX6160 Output Voltage
input with a 0.1μF ceramic capacitor, as shown in the Set the output voltage on the MAX6160 by connecting a Typical Operating Circuit. Locate the capacitor as close to resistor divider between OUT, ADJ, and GND (Figure 1). the device pin as possible. Where transient performance Choose R1 according to the following equation: is less important, no capacitor is necessary. R1 = (1.06 x 105) (VOUT / VADJ) Ω
Output Bypassing
where VTH = 1.23V. The scaling factor (1.06 x 105) The MAX6125/MAX6141/MAX6145/MAX6150/MAX6160 compensates for the MAX6160’s change in ADJ input do not require an output capacitor. They are stable for current over temperature. When R1 is chosen correctly, capacitive loads from 0nF to 10nF. If your application the change in voltage across R1 caused by the ADJ input requires an output charge reservoir (e.g., to decouple current is properly cancelled. Choose R1 to within the reference from a DAC’s input), then make sure that the total output capacitive load does not exceed 10nF for optimum settling-time performance. www.maximintegrated.com Maxim Integrated │ 8
Pin Description PIN NAME FUNCTION SO SOT23-3 SOT143
1 2 4 OUT Reference Output 2, 3, 5*, 6, 7 — — N.C. No Connection. Not internally connected. 4 3 1 GND Ground 5** — 2 ADJ Adjustable output voltage feedback input. Connect a resistor divider between OUT, ADJ, and GND (Figure 1). 8 1 3 IN Input Voltage *Except MAX6160. **MAX6160 only. ±5% of this calculated value (nearest standard value plus VIN specified resistor tolerance) to optimize the output voltage temperature coefficient. Using R1 = 215kΩ: IN OUT V 215kΩ OUT R2 = ≈ 208kΩ 2.5V
MAX6160
1 − R1 VOUT 1.23V R1 = 1.06 x 105 ( VADJ ) Ω ADJ R2 = R1 which is also the nearest 0.1% resistor value. VOUT R2 ( - 1) Choose R2 according to the following equation: GND VADJ VADJ = 1.23V R2 = R1 / (VOUT / VADJ - 1) For example, a 2.5V output requires R1 = (1.06 x 105) (2.5V / 1.23V) ≈ 215kΩ, which is the nearest standard- Figure 1. MAX6160 Adjustable Output Circuit value 0.1% resistor.
Applications Information Input Bypassing
For the best line-transient performance, decouple the
Setting the MAX6160 Output Voltage
input with a 0.1μF ceramic capacitor, as shown in the Set the output voltage on the MAX6160 by connecting a Typical Operating Circuit. Locate the capacitor as close to resistor divider between OUT, ADJ, and GND (Figure 1). the device pin as possible. Where transient performance Choose R1 according to the following equation: is less important, no capacitor is necessary. R1 = (1.06 x 105) (VOUT / VADJ) Ω
Output Bypassing
where VTH = 1.23V. The scaling factor (1.06 x 105) The MAX6125/MAX6141/MAX6145/MAX6150/MAX6160 compensates for the MAX6160’s change in ADJ input do not require an output capacitor. They are stable for current over temperature. When R1 is chosen correctly, capacitive loads from 0nF to 10nF. If your application the change in voltage across R1 caused by the ADJ input requires an output charge reservoir (e.g., to decouple current is properly cancelled. Choose R1 to within the reference from a DAC’s input), then make sure that the total output capacitive load does not exceed 10nF for optimum settling-time performance. www.maximintegrated.com Maxim Integrated │ 8