MAX1185_10 Datasheet, PDF (11/21 Pages) Maxim Integrated Products – Dual 10-Bit, 20Msps, 3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs

Dual 10-Bit, 20Msps, 3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
VIN
T/H
Σ
x2
VOUT
VIN
T/H
Σ
x2
VOUT
FLASH
ADC
DAC
1.5 BITS
STAGE 1
STAGE 2
STAGE 8
2-BIT FLASH
ADC
STAGE 9
FLASH
ADC
DAC
1.5 BITS
STAGE 1
STAGE 2
STAGE 8
2-BIT FLASH
ADC
STAGE 9
T/H
VINA
DIGITAL CORRECTION LOGIC
10
Figure 1. Pipelined Architecture—Stage Blocks
T/H
VINB
OUTPUT
MULTIPLEXER
10
D0A/B–D9A/B
DIGITAL CORRECTION LOGIC
10
INTERNAL BIAS
COM
S2a
S5a
C1a
S3a
S4a
INA+
OUT
C2a
S4c
S1
INA-
S4b
S4a
C2b
S2b
INTERNAL BIAS
INTERNAL BIAS
S2a
OUT
C1b
S3b
S5b
COM
COM
S5a
C1a
S3a
HOLD
HOLD
CLK
TRACK
TRACK
INTERNAL
NONOVERLAPPING
CLOCK SIGNALS
INB+
C2a
S4c
S1
OUT
MAX1185
INB-
S4b
C2b
S2b
INTERNAL BIAS
OUT
C1b
S3b
S5b
COM
Figure 2. MAX1185 T/H Amplifiers
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