MAX1196ECM+ - Dual 8-Bit 40Msps 3V ADC | Maxim Integrated
MPN: MAX1196ECM+ ✓ Hoạt độngMAX1196ECM+ Tóm tắt
An ADC (analog-to-digital converter) is a semiconductor device that samples continuous analog voltage signals and quantizes them into discrete digital codes for downstream DSP, microcontrollers, or FPGAs. Flash and pipelined ADCs occupy the high-speed segment of the converter hierarchy (flash > pipelined > successive-approximation > sigma-delta in speed, with inverse resolution/Footprint trend). The MAX1196 sits in the 8-bit, low-power tier favored for video, imaging, communications IF strips, and portable test gear where small package and low power dominate.
Key features per the Maxim datasheet include 40 Msps guaranteed conversion rate, 49 MHz full-power input bandwidth, ±1 LSB DNL (typical), 1.4 Vp-p differential input range, internal 2.048 V reference (externally overridable), and single 3.0 V supply operation. Power consumption is roughly 36 mW per channel at 40 Msps. CMOS-compatible digital I/O simplifies connection to modern FPGAs and ASICs without level shifters.
The device uses a two-stage pipelined architecture with digital error correction and an on-chip reference buffer. The internal reference eliminates external reference components and reduces board area, while the exposed pad on the TQFP-EP package provides a low-junction-to-ambient thermal path for sustained 40 Msps operation in industrial temperature environments.
Typical applications include digital still camera front-ends, video capture cards, I/Q digitizers in software-defined radio, ultrasound beam-formers, and portable instrumentation. The 48-pin TQFP-EP footprint is compatible with the pin-compatible MAX1186 (10-bit) for design migration when higher resolution is needed downstream.
When designing with the MAX1196ECM+, place input coupling capacitors close to AIN+/AIN- to preserve the wideband T/H performance, and stitch the exposed pad to a solid ground plane for thermal dissipation. According to the manufacturer datasheet, the MAX1186 is a documented drop-in 10-bit upgrade for the same 48-pin TQFP-EP footprint, useful when projects need more dynamic range without PCB rework.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives (including the 10-bit MAX1186 noted in the datasheet), and practical design notes not found on the manufacturer product page.
Bộ thay thế dễ dàng lắp đặt cho MAX1196ECM+ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MAX1196ECM+ (cùng hình factor và footprint) — khác nhau ở Architecture, Input Type, Number of Channels, Operating Temperature, Package.
MAX1186ECM+
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MAX1196ECM+TD
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1196ECM+D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX11960ETJ+T
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →AD9288BSTZ-100
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1196ECM+ Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 8 bit |
| Number of Channels | 2 (dual, simultaneous sampling) |
| Sample Rate | 40 Msps (per channel) |
| Architecture | Pipelined (2-stage with digital error correction) |
| Supply Voltage (Analog) | 3.0 V (2.7 V to 3.6 V) |
| Supply Voltage (Digital) | 1.8 V to 3.6 V |
| Differential Input Range | 1.4 Vp-p |
| Input Bandwidth | 49 MHz full-power |
| Internal Reference Voltage | 2.048 V |
| Differential Nonlinearity (DNL) | ±1 LSB (typ) |
| Power Dissipation | 36 mW per channel at 40 Msps (typical, 3.0 V) |
| Output Interface | Multiplexed parallel CMOS, two's complement |
| Hộp | 48-pin TQFP-EP (7 mm x 7 mm, exposed pad) |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Kiểu lắp đặt | Surface Mount |
| RoHS Compliance | Compliant |
| Input Type | Fully differential wideband track-and-hold |
Cấu hình chân MAX1196ECM+
| Chân 1 | AIN1+ — Channel 1 differential positive analog input |
| Chân 2 | AIN1- — Channel 1 differential negative analog input |
| Chân 3 | AGND — Analog ground |
| Chân 4 | REFP — Internal reference bypass positive |
| Chân 5 | REFN — Internal reference bypass negative |
| Chân 6 | REF — Internal 2.048 V reference output / external reference input |
| Chân 7 | COM — Common-mode voltage bypass |
| Chân 8 | AVDD — Analog 3.0 V supply |
| Chân 9 | AGND — Analog ground |
| Chân 10 | AIN2+ — Channel 2 differential positive analog input |
| Chân 11 | AIN2- — Channel 2 differential negative analog input |
| Chân 12 | AGND — Analog ground |
| Chân 13 | DVDD — Digital 3.0 V supply |
| Chân 14 | DGND — Digital ground |
| Chân 15 | D0 — Multiplexed data output bit 0 (LSB) |
| Chân 16 | D1 — Multiplexed data output bit 1 |
| Chân 17 | D2 — Multiplexed data output bit 2 |
| Chân 18 | D3 — Multiplexed data output bit 3 |
| Chân 19 | D4 — Multiplexed data output bit 4 |
| Chân 20 | D5 — Multiplexed data output bit 5 |
| Chân 21 | D6 — Multiplexed data output bit 6 |
| Chân 22 | D7 — Multiplexed data output bit 7 |
| Chân 23 | D8 — Multiplexed data output bit 8 (MAX1186 only, NC for MAX1196) |
| Chân 24 | D9 — Multiplexed data output bit 9 (MAX1186 only, NC for MAX1196) |
| Chân 25 | NC — Not connected (per datasheet) |
| Chân 26 | NC — Not connected (per datasheet) |
| Chân 27 | NC — Not connected (per datasheet) |
| Chân 28 | DGND — Digital ground |
| Chân 29 | DGND — Digital ground |
| Chân 30 | DGND — Digital ground |
| Chân 31 | NC — Not connected (per datasheet) |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | NC — Not connected (per datasheet) |
| Chân 35 | NC — Not connected (per datasheet) |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | NC — Not connected (per datasheet) |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | NC — Not connected (per datasheet) |
| Chân 47 | NC — Not connected (per datasheet) |
| Chân 48 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MAX1196ECM+ phù hợp cho 6 Áp dụngs: Digital Still Camera Image Sensor Front End, I/Q Baseband Digitizer for Software-Defined Radio, Ultrasound Beam-Former Receiver, Composite Video Capture Card, Portable Test & Measurement Instrumentation, Communication IF Strip Digitizer.
Digital Still Camera Image Sensor Front End
The MAX1196ECM+ suits digital still camera (DSC) image-sensor front-ends where two simultaneous channels digitize the color-filter-array (CFA) outputs at up to 40 Msps each. The dual pipelined channels preserve pixel-data alignment during simultaneous sampling, while the 1.4 Vp-p differential input range pairs directly with typical CCD/CIS sensor outputs after a transimpedance amplifier. Internal 2.048V reference removes the need for an external reference IC, shrinking the analog front-end BOM. Compared with the MAX1186, the 8-bit resolution is sufficient for cost-optimized VGA-class imagers but marginal for 5MP+ designs, making the MAX1196ECM+ best for entry-level DSCs.
Được đề xuất
I/Q Baseband Digitizer for Software-Defined Radio
In software-defined radio (SDR) baseband chains, the MAX1196ECM+ can simultaneously digitize the I (in-phase) and Q (quadrature) outputs of an analog quadrature demodulator. Two fully differential wideband track-and-hold inputs hold both channels to within sub-nanosecond skew - critical for demodulation accuracy. The 40 Msps per channel aggregate of 80 Msps supports IF bandwidths up to ~20 MHz, suitable for narrowband FM, cellular, and ISM-band receivers. The CMOS-compatible multiplexed parallel output feeds directly into a DSP or FPGA. Designers can migrate to the MAX1186ECM+ (10-bit) for higher SNR SDR designs sharing the same PCB layout.
Được đề xuất
Ultrasound Beam-Former Receiver
Ultrasound beam-forming arrays require many synchronized ADC channels; the MAX1196ECM+ provides two of those channels per IC with simultaneous sampling at 40 Msps, doubling channel density on the receiver PCB. The 1.4 Vp-p differential input range and wideband T/H preserve transient echo fidelity for harmonic imaging, while the 36 mW per channel power budget keeps junction temperatures in check across densely populated arrays. The exposed pad on the TQFP-EP package provides a critical low-theta-JA thermal path for channel-dense designs. The MAX1186ECM+ (10-bit) is preferred when penetration depth demands cleaner dynamic range in the same footprint.
Được đề xuất
Composite Video Capture Card
Composite video capture cards digitize NTSC/PAL analog video, where 8-bit resolution is sufficient for consumer-grade capture. The MAX1196ECM+ samples at 40 Msps, which exceeds the 14.3 Msps required for oversampled composite video, leaving headroom for chroma processing and temporal filtering. Dual channels enable simultaneous capture of two video sources - for example, two camera inputs or a video plus audio-channel overlay. The 3.0V single-supply operation simplifies power design in PCI Express capture cards. Internal 2.048V reference is stable enough for consumer video; broadcast applications should use the MAX1186ECM+ instead.
Được đề xuất
Portable Test & Measurement Instrumentation
Battery-powered oscilloscopes, spectrum analyzers, and logic-analyzer front-ends benefit from the MAX1196ECM+'s 3.0V single-supply operation and 36 mW-per-channel power consumption, both crucial for portable instruments. The 49 MHz analog input bandwidth enables undersampling of repetitive signals in the tens-of-MHz range, while dual channels support simultaneous high-side and low-side probing of switched-mode power supplies. Internal reference eliminates an external reference IC and bypass caps, reducing cost in the BOM-sensitive T&M market. Use the MAX1186ECM+ when dynamic range above 48 dB is required in the same form factor.
Được đề xuất
Communication IF Strip Digitizer
Intermediate-frequency (IF) strips in cellular base-station receivers and point-to-point microwave links down-convert RF to a low-frequency IF for digitization, and the MAX1196ECM+ is well-matched to digitize two IF channels at 40 Msps each. The wideband 49 MHz T/H preserves envelope fidelity for digital demodulation, and the multiplexed parallel CMOS output connects directly to an FPGA or ASIC. Differential inputs reject common-mode noise from the noisy RF environment. The MAX1186ECM+ is the natural upgrade for higher-order modulation schemes requiring 10-bit resolution in the same TQFP-EP 48 footprint.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MAX1196ECM+ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MAX1186ECM+ | MAX1196ECM+TD | MAX1196ECM+D | MAX11960ETJ+T | AD9288BSTZ-100 |
|---|---|---|---|---|---|---|
| Package | 48-TQFP-EP (7x7) | 48-TQFP-EP (7x7) - same | 48-TQFP-EP (7x7) - same | 48-TQFP-EP (7x7) - same | 32-TQFN (5x5) - differs | 48-LQFP (7x7) - similar |
| Brand | Analog Devices (Maxim) | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 8 bit | 10 bit | 8 bit | 8 bit | 12 bit | 8 bit |
| Sample Rate | 40 Msps / channel | 40 Msps / channel | 40 Msps / channel | 40 Msps / channel | 40 Msps / channel | 100 Msps / channel |
| Number of Channels | 2 | 2 | 2 | 2 | 2 | 2 |
| Supply Voltage | 3.0 V (2.7-3.6 V) | 3.0 V | 3.0 V | 3.0 V | 3.0 V | 3.0 V / 5.0 V |
| Internal Reference | 2.048 V | Yes (internal) | 2.048 V | 2.048 V | Yes | External |
Bảo phân biệt quan trọng
- Pin-compatible 10-bit upgrade available in same footprint (vsMAX1186ECM+)
- Lower power consumption than higher-speed ADCs in the same family (vsAD9288BSTZ-100)
- Internal precision reference eliminates external reference BOM (vsAD9288BSTZ-100)
Ghi chú thiết kế
Estimated: At 3.0V AVDD, 40 Msps per channel, and a typical 36 mW/channel, total package dissipation is about 72 mW - well below the TQFP-EP thermal limit. However, in dense multi-ADC arrays (ultrasound beam-formers, IF strips), plan for a single continuous ground plane under all exposed pads. Solder the EP to a 4 mm x 4 mm copper pour with thermal vias on a 1.2 mm pitch to keep theta-JA near the datasheet figure of 30 C/W.
Place AC-coupling capacitors (typically 0.1 uF X7R) within 5 mm of AIN+/AIN- pins to preserve the wideband track-and-hold bandwidth (49 MHz). Keep the digital output bus (D0-D7) routed away from REFP/REFN to avoid digital noise injection into the reference. Use a star-ground topology with the EP as the central analog-ground anchor.
The CMOS-compatible parallel outputs are multiplexed between the two channels; verify setup and hold timing in the host FPGA at the maximum 40 Msps clock. Add 22 ohm series damping resistors on D0-D7 if the trace length exceeds 25 mm to suppress reflections on the multiplexed parallel bus.
Do not apply common-mode DC bias directly to AIN+/AIN- - the 1.4 Vp-p differential input range is centered on a 1.4 V common-mode voltage derived from the internal COM pin. Tie COM to the input amplifier's output bias and AC-couple with 0.1 uF capacitors if the source is single-ended. For external reference mode, drive REF with a low-impedance buffer capable of sourcing 1 mA.
Thông tin tuân thủ
RoHS-compliant per Mouser and DigiKey product pages. The MAX1196 family is specified for industrial -40 C to +85 C operation, not AEC-Q100 qualified - not designed for automotive under-hood environments.
