US 7,321,260 B2 | ||
Ping-pong auto-zero amplifier with glitch reduction | ||
Mark R. Larson, Maple Grove, Minn. (US) | ||
Assigned to Honeywell International, Inc., Morristown, N.J. (US) | ||
Filed on Mar. 07, 2006, as Appl. No. 11/369,384. | ||
Prior Publication US 2007/0222505 A1, Sep. 27, 2007 | ||
Int. Cl. H03F 1/02 (2006.01) |
U.S. Cl. 330—9 [330/51] | 20 Claims |
1. A ping-pong auto-zero amplifier, comprising:
a first nulling amplifier having first and second differential inputs and a single-ended output, the first input coupled to
receive a pre-output signal of the ping-pong amplifier; and
a switching network for auto-zeroing a ping amplifier within the ping-pong amplifier, the switching network providing during
the auto-zeroing:
i) a coupling of the output of the nulling amplifier to a first auxiliary differential input of the ping amplifier; and
ii) a coupling of the second input of the first nulling amplifier to a single-ended output of the ping amplifier.
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