These values are then presented to the first-stage quan-

tizers and isolate the pipelines from the fast-changing

inputs. The wide input bandwidth T/H amplifiers allow the

MAX1190 to track and sample/hold analog inputs of high

frequencies (>Nyquist). Both ADC inputs (INA+, INB+,

INA- and INB-) can be driven either differentially or sin-

gle ended. Match the impedance of INA+ and INA-, as

well as INB+ and INB-, and set the common-mode volt-

Dual 10-Bit, 120Msps, 3.3V, Low-Power ADC

with Internal Reference and Parallel Outputs

______________________________________________________________________________________

11

S3b

S3a

COM

S5b

S5a

INB+

INB-

S1

OUT

OUT

C2a

C2b

S4c

S4a

S4b

C1b

C1a

INTERNAL

BIAS

INTERNAL

BIAS

COM

HOLD

HOLD

CLK

INTERNAL

NONOVERLAPPING

CLOCK SIGNALS

TRACK

TRACK

S2a

S2b

S3b

S3a

COM

S5b

S5a

INA+

INA-

S1

OUT

OUT

C2a

C2b

S4c

S4a

S4b

C1b

C1a

INTERNAL

BIAS

INTERNAL

BIAS

COM

S2a

S2b

MAX1190

Figure 2. MAX1190 T/H Amplifiers