ADGS1412BCPZ datasheet(22/26 Pages) AD

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Data Sheet

ADGS1412

Rev. 0 | Page 21 of 25

APPLICATIONS INFORMATION

POWER SUPPLY RAILS

To guarantee correct operation of the ADGS1412, 0.1 μF

decoupling capacitors are required.

The ADGS1412 can operate with bipolar supplies between

±4.5 V and ±16.5 V. The supplies on VDD and VSS do not have to

be symmetrical; however, the VDD to VSS range must not exceed

33 V. The ADGS1412 can also operate with single supplies

between 5 V and 20 V with VSS connected to GND.

The voltage range that can be supplied to VL is from 2.7 V to 5.5 V.

The device is fully specified at ±15 V, +5 V, and +12 V analogue

supply voltage ranges.

POWER SUPPLY RECOMMENDATIONS

Analog Devices, Inc., has a wide range of power management

products to meet the requirements of most high performance

signal chains.

An example of a bipolar power solution is shown in Figure 42.

The ADP5070 (dual switching regulator) generates a positive and

negative supply rail for the ADGS1412, amplifier, and/or a

precision converter in a typical signal chain. Also shown in

Figure 42 are two optional LDOs, ADP7118 and ADP7182

positive and negative LDOs respectively, that can be used to

reduce the output ripple of the ADP5070 in ultralow noise

sensitive applications.

The ADM7160 can be used to generate VL voltage that is

required to power digital circuitry within the ADGS1412.

ADM7160

LDO

+3.3V

ADP7118

LDO

+15V

ADP7182

LDO

–15V

+16.5V

–16.5V

ADP5070

+5V

INPUT

Figure 42. Bipolar Power Solution

Table 10. Recommended Power Management Devices

Product

Description

ADP5070

1 A/0.6 A, dc-to-dc switching regulator with

independent positive and negative outputs

ADM7160

5.5 V, 200 mA, ultralow noise, linear regulator

ADP7118

20 V, 200 mA, low noise, CMOS LDO linear regulator

ADP7182

−28 V, −200 mA, low noise, LDO linear regulator

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