1. Switched-current system cells
2. Hughes, J.B., and Redman-White, W.: ‘Switched-current limitations and non-ideal behaviour’, Switched-currents: An analogue technique for digital technology, (Peter Peregrinus Ltd., Chap. 4,
3. Hughes, J.B., Moulding, K.W., and Pattullo, D.M.: ‘Switched-current circuit design techniques’, Switched-currents: An analogue technique for digital technology, (Peter Peregrinus Ltd., Chap. 6,
4. Sampled-current circuits