Such as?
david
On 7/08/2014 9:30 PM, [email protected] wrote:
I have a couple of these. however their noise spectral density tends
to rise precipitously below 1Hz or so. There are regulators with
significantly
lower flicker noise.
Bruce
On August 7, 2014 at 6:35 AM Tom Van Baak <[email protected]> wrote:
Ole,
Thanks for bringing it to our attention.
For those that like to click instead of search:
http://www.ti.com/tool/TPS7A4701EVM-094
http://www.ti.com/lit/ug/slvu741a/slvu741a.pdf
http://www.ti.com/product/tps7a4701
http://www.ti.com/lit/ds/symlink/tps7a4701.pdf
/tvb
----- Original Message -----
From: "Ole Petter Ronningen" <[email protected]>
To: <[email protected]>
Sent: Wednesday, August 06, 2014 11:38 PM
Subject: [time-nuts] Low noise powersupplies
Hello, all
I thought it may be of interest to some of the members of this list that TI
is selling evaluation modules for some ultra low noise regulators for $20
in their estore, shipping world wide included. The specs looks pretty
decent to me, and I've ordered up a couple of boards to use as "clean up
boxes" for my bench-supplies, to use on noise-sensitive projects.
1.4-30v output TPS7A4701EVM-094
3.5µVRMS (10Hz, 100KHz)
<25 nV/√Hz (10Hz, 1MHz)
Maximum Output Current of 1A
+-15v version TPS7A30-49EVM-567:
15v rail:
Noise:
12.7µVRMS (20Hz to 20kHz)
15.4µVRMS (10Hz to 100kHz)
Power-Supply Ripple Rejection:
72dB (120Hz)
≥ 52dB (10Hz to 400kHz)
Maximum Output Current: 150mA
-15v rail:
Noise:
14µVRMS (20Hz to 20kHz)
15.1µVRMS (10Hz to 100kHz)
Power-Supply Ripple Rejection:
72dB (120Hz)
≥ 55dB (10Hz to 700kHz)
Maximum Output Current: 200mA
Ole
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